RAID SCSI TO IDE
Installation Reference Guide Revision 1.1
P/N: PW0020000000093
Copyright No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior written consent.
Trademarks All products and trade names used in this document are trademarks or registered trademarks of their respective holders.
Changes The material in this documents is for information only and is subject to change without notice.
FCC Compliance Statement This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in residential installations. This equipment generates, uses, and can radiate radio frequency energy, and if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is not guarantee that interference will not occur in a particular installation. If this equipment does cause interference to radio or television equipment reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: 1. 2. 3. 4.
Reorient or relocate the receiving antenna Move the equipment away from the receiver Plug the equipment into an outlet on a circuit different from that to which the receiver is powered. Consult the dealer or an experienced radio/television technician for help
All external connections should be made using shielded cables.
Table of Contents Chapter 1 1.1 1.2 1.3
1.4
Chapter 2 2.1 2.2 2.3
2.4
2.5
2.6
Chapter 3 3.1 3.2 3.3 3.4 3.5
Introduction Key Features.......................................................................................................... Unpacking......................................................................................................... The Front Panel - Smart Function Panel.......................................................... 1.3.1 Disk Tray.................................................................................................. 1.3.2 Smart Function LCD............................................................................... 1.3.2.1 LCD - RAID Configuration.......................................................... 1.3.2.2 LCD - Environment Monitor........................................................ 1.3.2.3 LCD - Environment Status......................................................... The Rear Panel...................................................................................................... 1.4.1 Power Supplies............................................................................................ 1.4.2 Fans........................................................................................................ 1.4.3 Host Channels.............................................................................................. 1.4.4 Monitor Port.................................................................................................. 1.4.5 Modem Port.................................................................................................. 1.4.6 UPS Port....................................................................................................... 1.4.7 R-Link Port....................................................................................................
1-2 1-3 1-4 1-5 1-6 1-7 1-8 1-9 1-10 1-10 1-11 1-11 1-11 1-11 1-11 1-11
Functional Description Features........................................................................................................... User Interface.................................................................................................... 2.2.1 Monitor Port............................................................................................. SCSI Functions...................................................................................................... 2.3.1 Multiple SCSI Format Support................................................................ 2.3.2 Host SCSI ID Selection................................................................................. Disk Drive Organization......................................................................................... 2.4.1 Physical Drive Groups............................................................................. 2.4.2 Logical Unit Number (LUNs).................................................................... Drive Management................................................................................................. 2.5.1 Hot-Swap Drive Replacement................................................................. 2.5.2 Disk Faiure Detection.............................................................................. RAID Management.................................................................................................
2-1 2-2 2-2 2-3 2-3 2-3 2-4 2-4 2-4 2-4 2-4 2-4 2-5
Installation Overview Powering-on the Subsystem................................................................................ Installing Hard Disk Drives.................................................................................. 3.2.1 Installing a Hard Drive in the Disk Tray...................................................... Connecting RAID Subsystem to a Host................................................................ Replacing a Power Supply..................................................................................... Replacing a Fan................................................................................................
3-1 3-2 3-2 3-4 3-5 3-6
3.6 3.7 3.8 3.9 3.10 3.11 .
Chapter 4 4.1 4.2
Chapter 5 5.1 5.2
Chapter 6 6.1
6.2 6.3 6.4 6.5 6.6 6.7 6.8 6.9 6.10 6.11 6.12 6.13 6.14 6.15
Chapter 7 7.1 7.2 7.3
Temperature..................................................................................................... Voltage................................................................................................................ Memory Upgrades................................................................................................. Connecting to a PC or Terminal ......................................................................... Connecting to a Fax Modem.................................................................................. Connecting an Uninterrupted Power Supply (UPS)............................................
3-6 3-7 3-7 3-8 3-9 3-10
SCSI Guidelines SCSI IDs................................................................................................................. Terminators.........................................................................................................
4-1 4-1
Quick Setup Guide Entering the Password.......................................................................................... Performing Quick Setup.......................................................................................
5-3 5-3
Configuring the Subsystem Configuration Methods.......................................................................................... 6.1.1 Configuring through a Terminal................................................................. 6.1.2 Configuring the Subsystem Using the LCD Panel.................................... 6.1.3 Menu Diagram........................................................................................... Starting the Monitor Utility..................................................................................... Quick Setup............................................................................................................ Creating a New RAID or Reconfiguring an Existing RAID................................... Changing the Host Channel’s SCSI ID................................................................ Erasing an Exiting Configuration......................................................................... Formatting Hard Drives.......................................................................................... Configuring the Terminal....................................................................................... Setting a Password................................................................................................ R5(RAID Level 5) / R3(RAID Level 3) Consistency Check................................ Rebuilding........................................................................................................... Deleting a RAID......................................................................................................... Creating a Single Array with Two Slices for Dual host(1 Array 2 Slice for 2 Host) Creating a Single Array for Dual Hosts (1 Array for 2 Host)................................ Expanding the Array (Online Expansion)............................................................
6-1 6-1 6-2 6-3 6-5 6-7 6-9 6-16 6-20 6-22 6-24 6-27 6-29 6-31 6-32 6-35 6-42 6-48
Configuring Faxes and Pagers Configuring the FAX............................................................................................ Configuring the Pager......................................................................................... Configuring a FAX Modem..................................................................................
7-1 7-4 7-9
Chapter 8
Upgrading the Firmware.....................................................
8-1
Appendix A
RAID Levels.......................................................................
A-1
Appendix B
Technical Specification....................................................
B-1
Appendix C
Subsystem Environment Controller................................
C-1
Appendix D
RAID Messages.................................................................
D-1
Chapter 1 Introduction The RAID subsystem is a Ultra 3 LVD SCSI-to-EIDE RAID (Redundant Arrays of Independent Disks) disk array subsystem. It consists of a RAID disk array controller, an environment controller and eight (8) disk trays. The subsystem is a “Host Independent” RAID subsystem supporting RAID levels 0, 1, 3, 5 and 0+1. Regardless of the RAID level the subsystem is configured for, each RAID array consists of a set of disks which to the user appears to be a single large disk capacity. One unique feature of these RAID levels is that data is spread across separate disks as a result of the redundant manner in which data is stored in a RAID array. If a disk in the RAID array fails, the subsystem continues to function without any risk of data loss. This is because redundant information is stored separately from the data. This redundant information will then be used to reconstruct any data that was stored on a failed disk. In other words, the subsystem can tolerate the failure of a drive without losing data while operating independently of each other. The subsystem is also equipped with an environment controller which is capable of accurately monitoring the internal environment of the subsystem such as its power supplies, fans, temperatures and voltages. The disk trays allow you to install any type of 3.5-inch hard drive. Its modular design allows hotswapping of hard drives without interrupting the subsystem’s operation.
Introduction
1-1
1.1 Key Features •
IDE ATA-100(ATA-133 applicable) hard drives with failure management - 8 hot-swappable IDE ATA-100(ATA-133 applicable) disk trays - Fault tolerant hard drives using the RAID technology - LEDs indicating the status of the hard drives and failure alarm - Automatic detection and disconnection of failed drives - Hot-swapping of drives - Automatic online rebuild of new drives
•
backplane board
•
RAID management - RAID levels 0, 1, 3, 5 and 0+1 - Intel i80303/100 64-bit RISC processor
•
Versatile user interface - 2x16 characters LCD backlit display and easy-to-use button controls on the front panel of the disk array controller for RAID disk array configuration and management - Serial monitor port allows you to connect a PC or terminal for RAID disk array configuration and management - Serial modem port for fax and pager remote notification and failure alarm
•
Environment controller (ENC) functions include: - Monitoring the internal temperature of the subsystem with real time display of temperature and overheat alarm - Monitoring the output voltage of the power supplies. If the output voltage is over or under +5V or +12V, an alarm will sound warning of voltage irregularity. - Monitoring the status of the cooling fans and failure alarm - Monitoring the status of the power supplies and failure alarm
•
Cache memory up to 512MB
1-2
Introduction
• • •
Bad sector reassignment Concurrent I/O tagged command queuing UPS connection (compliant with NetWare UPS management)
1.2 Unpacking the Subsystem Before continuing, first unpack the subsystem and verify that the contents of the shipping carton are all there and in good condition. Before removing the subsystem from the shipping carton, visually inspect the physical condition of the shipping carton. Exterior damage to the shipping carton may indicate that the contents of the carton are damaged. If any damage is found, do not remove the components; contact the dealer where the subsystem was purchased for further instructions. The package contains the following items: • • • • • • • • •
RAID subsystem unit One power cords Two HD68M to HD68M external SCSI cables One external null modem cable One external UPS cable Two Active LVD/SE terminator (must to be connect to host channel A & B ) One 10/100 Mpbs CAT.5 Ethernet LAN cable (option) Installation Reference Guide Spare screws, etc.
If any of these items are missing or damaged, please contact your dealer or sales representative for assistance.
Introduction
1-3
1.3 The Front Panel - Smart Function Panel
HDD activity LEDs HDD power LEDs
HDD fault LEDs
LCD Display
HDD power LEDs: Green LED indicate power is on. HDD activity LEDs: These LED will blink blue when the hard drive is being accessed. HDD fault LEDs: Red LED indicate the hard drive is failure.
1-4
Slot 4
Slot 3
Slot 2
Slot 1
Slot 8
Slot 7
Slot 6
Slot 5
Introduction
1.3.1 Disk Tray The subsystem is equipped with disk trays which are used for housing hard drives. The front view of the disk tray is shown below.
Introduction
1-5
1.3.2 Smart Function Panel
ENC button Controller button
ENC Global Fault LED Access LED
Function
Parts ENC button
Controller button
This is used to enter the internal environment of the subsystem such as the HDD status , temperature, power supplies, voltage and cooling fans. Press this button to enter to the configuration of the subsystem such as the memory size, firmware version, as well as the brand and capacity of the hard drives. You can also use this screen to enter the utility to further configure the subsystem.
ENC Global Fault LED
When an environment abnormal condition occurs, this LED will turn red and an alarm will sound.
Access LED
Blue blinking LED indicates data is being accessed.
1-6
Introduction
1.3.2.1 Smart Function Panel - for RAID configuration The smart LCD panel is where you will configure the RAID subsystem. If you are configuring the subsystem using the LCD panel, please press the controller button to configure your RAID subsystem. Up button Down button Select button Exit button
Parts
Function
Up and Down arrow buttons
Use the Up or Down arrow keys to go through the information on the LCD screen. This is also used to move between each menu when you configure the subsystem.
Select button
This is used to enter the option you have selected.
Exit button
Press this button to return to the previous menu.
Introduction
1-7
1.3.2.2 Smart Function Panel - for Environment monitor Press the ENC button to enter the environment menu.
Alarm rest button Select button Info button Quit button
Parts
Function
Quit button
Press this button to return to the previous menu.
Info button
Use this button to go through the information on the LCD screen.
Select button °C & °F switch button
This is used to enter the option you have selected.Use this button to switch °C & °F temperature display. °F=32°+°C * (9 / 5)
Alarm Reset button
Press this button to stop the alarm.
1-8
Introduction
1.3.2.3 Smart Function Panel - Environment status
Voltage warning LED Over temp LED Fan fail LED Power fail LED Power LED
Parts Voltage warning LED Over temp LED
Function If the output DC voltage is over or under +5V or +12V, an alarm will sound warning of a voltage abnormality and this LED will turn red. (5V: over 5.5V / under 4.5V , 12V: over 13.8V / under 10.2V) If temperature irregularity in these systems occurs (HDD slot temperature over 55oC/113oF or under 0oC/32oF), this LED will turn red and an alarm will sound.
Fan fail LED
When a fan’s rotation speed is lower than 1000rpm, this LED will turn red and an alarm will sound.
Power fail LED
If a redundant power supply fails, this LED will turn red and an alarm will sound.
Power LED
Green LED indicates power is on.
Introduction
1-9
1.4 The Rear Panel Power Supply 1 power connector Host Channel B Host Channel A
115
Power Supply 1
FAN1 HOST A
HOST B
115
FAN2
R-Links
Power Supply 2
UPS
Modem
Reserved
Monitor
Power Supply 2 power connector
Fan Module
R-Link port Remote Management Port through Ethernet (optional)
Important: Please attach the terminator included in the package to the Host Channel A & B Out port before using the subsystem. Make sure the terminator at the subsystem’s Host Channel A & B In port is disabled. Refer to Chapter 6 for more information.
1.4.1 Power Supplies Two power supplies (Power supply 1 and Power supply 2) are located at the rear of the subsystem. Turn on the power of these power supplies to power-on the subsystem. The “Power” LED at the front panel will turn green. If a power supply fails to function or a power supply was not turned on, the “
” Power fail LED will turn red and an alarm will sound. An error message
will also appear on the LCD screen warning of power failure. Press the “ Reset button to stop the alarm. 1-10
Introduction
”
1.4.2 Fans Two blower fans are located at the rear of the subsystem. They provide sufficient airflow and heat dispersion inside the chassis. In case a fan fails to function, the “
” Fan fail LED will turn red and an alarm will sound. You will
also see an error message appear in the LCD screen warning you of fan failure. Press the “
” Reset button to stop the alarm.
1.4.3 Host Channels The subsystem is equipped with 2 host channel (Host channel A and Host channel B). The host channel with two 68-pin SCSI connectors at the rear of the subsystem for SCSI in and out.
1.4.4 Monitor Port The subsystem is equipped with a serial monitor port allowing you to connect a PC or terminal.
1.4.5 Modem Port The subsystem is equipped with a serial Modem port allowing you to connect a modem.
1.4.6 Uninterrupted Power Supply (UPS) Port The subsystem may come with an optional UPS port allowing you to connect a UPS device. Connect the cable from the UPS device to the UPS port located at the rear of the subsystem. This will automatically allow the subsystem to use the functions and features of the UPS.
1.4.7 R-Link Port : Remote Management Port through Ethernet (by option) The subsystem is equipped with one serial-to-Ethernet converter. It converts data from the Monitor port to a form suitable for 10/100 Mbps TCP/IP Ethernets. You can access the setup configuration utility of the subsystem through Ethernet for remote configuration and monitoring.
Introduction
1-11
Chapter 2 Functional Description 2.1 Features • • •
• • • • • • • • • • • • •
No special softwares or drivers needed. Supports almost any type of servers or operating system Highly flexible user interface including a full-function external monitor control or built-in front panel key controls and LCD display Supports multiple RAID levels (0, 1, 3, 5 and 0+1) which enables you to select your own storage capacity, data availability (redundancy) and I/O transfer performance for any data application Integrated backplane Automatic rebuild function without user intervention Automatic fault monitoring and recovery function Monitor port for subsystem configuration through a terminal or a PC system Automatic remapping of sectors to recover defective media and correct data errors High performance SCSI interface provides faster data transfers up to 160MB/sec (Ultra 160 LVD SCSI) Critical condition notification via status messages and alarms EIDE/ATA-100 (ATA-133 applicable) hard drives with failure management LEDs indicate the status of the hard drives Hot-swapping of drives Intelligent disk power regulator circuit Automatic detection and disconnection of failed drives Smart-function LCD dispaly
Functional Description
2-1
2.2 User Interface The user can communicate with the subsystem via (1) the key controls and LCD screen located on the front panel, or (2) a terminal or PC system connected to the subsystem via serial monitor port. The default setting is 19200 baud rate, non-parity, 8 data bit, 1stop bit, and non-flow control. Note: If a terminal or PC system will not connect properly to the subsystem via the serial monitor port, please check if the baud rate setting is correct and change the subsystem’s baud rate to the correct value if necessary. See section 6.1.
2.2.1 Monitor Port
2-2
Pin
Description
1
Data Carrier Detect (DCD)
2
Transmit Data (TD)
3
Receive Data (RD)
4
Data Set Ready (DSR)
5
Signal Ground (SG)
6
Data Teminal Ready (DTR)
7
Clear To Send (CTS)
8
Ready To Send (RTS)
9
Ring Indicator (RI)
Functional Description
2.3 SCSI Functions 2.3.1 Multiple SCSI Format Support The subsystem support the SCSI interface standards listed below. Note that the data bit and cable length restrictions must be followed.
Data Bit
Data Rate
SCSI-1
8 Bits
5 MB/Sec
6m
Fast SCSI
8 Bits
10 MB/Sec
3m
Fast Wide SCSI
16 Bits
20 MB/Sec
3m
Ultra SCSI
8 Bits
20 MB/Sec
1.5 m
Ultra Wide SCSI
16 Bits
40 MB/Sec
1.5 m
Ultra 2 SCSI
8 Bits
40 MB/Sec
12 m
Ultra 2 Wide SCSI
16 Bits
80 MB/Sec
12 m
Ultra 160 Wide LVD
16 Bits
160MB/Sec
12 m
SCSI Type
Cable Length
2.3.2 Host SCSI ID Selection The subsystem must be assigned a unique SCSI ID ranging from 0 to 15 for the Ultra 160 LVD SCSI host system. The default value is ID0. For information on changing the subsystem’s SCSI ID, please see section 6.5.
Functional Description
2-3
2.4 Disk Drive Organization The subsystem arranges the IDE ATA interface drives connected to it as a physical drive group and logical unit (LUN).
2.4.1 Physical Drive Groups The subsystem has up to a maximum of eight(8) individual disk drives which can be used to form a physical drive group. To calculate the total size of a particular drive group, (Smallest disk size) x (Number of disk) = Capacity for RAID 0 (Smallest disk size) x ((Number of disk) / 2) = Capacity for RAID 1 (Smallest disk size) x ((Number of disk) - 1) = Capacity for RAID 3 or 5
2.4.2 Logical Unit Number (LUNs) A logical unit is a drive group read by the host system as a logical device. The subsystem supports up to eight(8) LUNs for drive group.
2.5 Drive Management 2.5.1 Hot-Swap Drive Replacement The subsystem supports hot-swapping of drives while the system is poweredon. A disk may be disconnected, removed or replaced with a different disk without turning off the system.
2.5.2 Disk Failure Detection The subsystem can automatically detect disk failures. It monitors disk activities including the elapsed time on all commands issued to the disks as well as parity errors and other potential problems. A time-out will reset the disk and retry the command. If the command time-out occurs again, the disk will fail. Any disk with too many errors will be shut down by subsystem.
2-4
Functional Description
2.6 RAID Management The subsystem can implements several different levels of RAID technology. RAID levels supported by the subsystem are shown below.
RAID Level
Description
Min Drives
0
Block striping is provide, which yields higher performance than with individual drives. There is no redundancy.
1
1
Drives are paired and mirrored. All data is 100% duplicated on an equivalent drive. Fully redundant.
2
3
Data is striped across several physical drives. Parity protection is used for data redundancy.
3
5
Data is striped across several physical drives. Parity protection is used for data redundancy.
3
Combination of RAID levels 0 and 1. This level provides striping and redundancy through mirroring.
4
0+1
Functional Description
2-5
Chapter 3 Installation Overview 3.1 Powering-on the Subsystem 1.
Plug in all the power cords or power connectors located at the rear of the subsystem.
2.
Turn on the power.
3.
The “Power” LED on the front panel will turn green.
Power Supply 1 Power connector
AC Switch
Power Alarm reset
115
Power Supply 1
FAN1 HOST A
HOST B
115
FAN2
R-Links
Power Supply 2
UPS
Modem
Reserved
Monitor
Power Supply 2 Power connector
AC Switch
Installation Overview
3-1
3.2 Installing Hard Disk Drives This section describes the physical locations of the hard drives supported by the subsystem and gives instructions on installing a hard drive.
3.2.1 Installing a Hard Drive in the Disk Tray 1.
Pull out an empty disk tray. (You can install in any available slot.)
2.
Unpack the hard drive. Set the HDD to ‘Master’ or ‘Standalone’ HDD. See the documentation included with your hard drive for information on how to do this. Warning: Electrical static discharge (ESD) can damage your drive or other components without causing visible signs of physical damage. To provide ESD protection, ground yourself by touching any metal part of the subsystem chassis. Power cable
40-pin 80 conduction ATA cable
Latch
3.
Connect the power cable to the power connector on the hard drive.
4.
Connect the 40-pin 80 conduction ATA cable to the IDE connector on the hard drive. Align the colored edge of the cable with pin 1 of the connector.
5.
Place the hard drive in the disk tray.
3-2
Installation Overview
6.
Install the mounting screws on each side to secure the drive in the disk tray.
7.
Slide the tray into a slot until it clicks into place. The HDD status LED will turn red at relative position on the front panel.
Lever
8.
Press the lever in until you hear the latch click into place.
9.
The HDD power LED will turn to green, if the HDD power LED did not turn green, check the following: a. Make sure the hard drive cables are connected properly. b. Make sure the hard drive is in good condition.
10. If the hard drive is not being accessed, the HDD activity LED will not illuminate. The LED blinks only when being accessed.
Installation Overview
3-3
3.3 Connecting RAID Subsystem to a Host The subsystem supports the Ultra 160 SCSI LVD interface which provides fast 160MB/S data transfer rates using a 16-bit SCSI bus. 1.
Configure the SCSI ID of subsystem (Unique SCSI ID in the same SCSI bus). Refer to section 6.5 for further instructions.
2.
Attach a terminator to the last SCSI device. (Refer to your device’s documentation.)
3.
The package comes with two external SCSI cables. For every pair of host channel SCSI connector at the rear of the subsystem, attach one end of the external SCSI cable to one of the SCSI connectors and the other end to the host adapter’s external SCSI connector. (The host adapter is installed in your Host subsystem.)
4.
Connect the other host system using the other external SCSI cable if you want to configure subsystem into multi-host attachment.
5.
If you are connecting another external device after the subsystem, make sure to disable the terminator at the subsystem’s host channel A out connector. The default host channel’s terminator is disabled. Refer to Chapter 6 for more information.
!
3-4
Note: When one or more SCSI devices are connected, the total length of all cables (internal or external) must not exceed 3 meters (9.8 ft.) to ensure reliable operation.
Installation Overview
3.4 Replacing a Power Supply 1.
Remove the screws located at the corners of the power supply. Place the screws in a safe place as you will need them later when you install a new power supply.
115
Screw of power supply 1
FAN1 HOST A
HOST B
115
FAN2
R-Links
UPS
Modem
Reserved
Monitor
Screw of power supply 2
2.
Use the handle to pull out the defective power supply.
3.
Replace it with a new 300W power supply.
4.
Slide the new power supply in until it clicks into place.
5.
Replace the screws removed in step 1.
Installation Overview
3-5
3.5 Replacing a Fan Unscrew located on the right sides of the fan holder.
115
1.
FAN1 HOST A
HOST B
115
FAN2
R-Links
UPS
Modem
Reserved
Monitor
Screw of Fan module
2.
The fans are attached to the fan holder. Replace the fan holder. Note: We recommend that you remove the fan holder from the subsystem. This allows easy installation and unlimited workspace when replacing the fan.
3.6 Temperature The Temperature Display in the LCD screen shows the internal temperature of the subsystem. The temperature scale is factory configured in either degrees ” over Celsius or degrees Fahrenheit. If the temperature is too high, the “ temp LED will turn red and an alarm will sound. An error message will also appear on the LCD screen of the panel warning of temperature irregularity. Press the Reset button to stop the alarm. Refer to Appendix C (environment controller) for more information. Some of the more common causes leading to high temperature are:
3-6
Installation Overview
• • •
The fan is not functioning normally. The temperature of the external environment is too high. The space clearance at the rear of the subsystem is not enough to maintain proper airflow.
3.7 Voltage The subsystem is able to detect the +5V and +12V output voltage of the power supply. If the output voltage is over or under +5V or +12V (5V: over 5.5V / under 4.5V , 12V: over 13.8V / under 10.2V), the “ ” Out voltage LED on the front panel will turn red and an alarm will sound. An error message will also appear on the LCD screen on the panel warning of voltage irregularity. Press the Reset button to stop the alarm. Refer to Appendix C (environment controller) for more information. Some of the more common causes leading to unstable output voltage of a power supply are: • •
The power supply is not functioning normally. Replace the defective power supply. The AC input from the power outlet to the subsystem is unstable.
3.8 Memory Upgrades The subsystem is equipped with one DIMM sockets. By default, the system unit comes with 128MB of memory. Important: • supports 144-pin Sync. SDRAM DIMM only. • 60ns module is recommended.
Installation Overview
3-7
3.9 Connecting to a PC or Terminal
115
The subsystem is equipped with a serial monitor port located at the rear of the system unit. This serves as an alternative display when accessing the setup utility.
FAN1 HOST A
HOST B
115
FAN2
R-Links
UPS
Modem
Reserved
Monitor
Monitor port
Pin
Description
1
Data Carrier Detect (DCD)
2
Receive Data (RD)
3
Transmit Data (TD)
4
Data Teminal Ready (DTR)
5
Signal Ground (SG)
6
Data Set Ready (DSR)
7
Ready To Send (RTS)
8
Clear To Send (CTS)
9
Ring Indicator (RI)
Note: Refer to Chapter 6 for instructions on accessing the setup utility through a PC or terminal, as well as instructions on setting the baud rate, stop bit, data bit and parity of your monitor or terminal. The default setting of the monitor port is 19200 baud rate, non-parity, 8 data bit and no flow control. 3-8
Installation Overview
3.10 Connecting to a Fax Modem
115
The subsystem is equipped with a serial modem port located at the rear of the system unit. It allows you to connect an external modem for fax and pagerI remote notification.
FAN1 HOST A
HOST B
115
FAN2
R-Links
UPS
Modem
Reserved
Monitor
Modem port Pin
Description
1
Data Carrier Detect (DCD)
2
Receive Data (RD)
3
Transmit Data (TD)
4
Data Teminal Ready (DTR)
5
Signal Ground (SG)
6
Data Set Ready (DSR)
7
Ready To Send (RTS)
8
Clear To Send (CTS)
9
Ring Indicator (RI)
Note: Refer to Chapter 6 for instructions on accessing the setup utility through a PC or terminal, as well as instructions on setting the baud rate, stop bit, data bit and parity of your fax modem. The default setting of the modem port is 19200 baud rate, non-parity, 8 data bit and Xon/Xoff flow control. Installation Overview
3-9
3.11 Connecting an Uninterrupted Power Supply (UPS)
115
The subsystem is equipped with a UPS port located at the rear of the system unit. It allows you to connect a UPS fail signal.
FAN1 HOST A
HOST B
115
FAN2
R-Links
UPS port
Pin
3-10
Description
1
Not used
2
UPS Line Fail
3
Not used
4
UPS Common
5
Not used
6
Not used
7
Not used
8
Not used
9
Not used
Installation Overview
UPS
Modem
Reserved
Monitor
Chapter 4 SCSI Configuration Guidelines Before configuring the subsystem, you must first understand some basic SCSI concepts so that the subsystem and SCSI devices will function properly.
4.1 SCSI IDs A SCSI ID is an identifier assigned to SCSI devices which enables them to communicate with a computer when they are attached to a host adapter via the SCSI bus. Each SCSI device, and the host adapter itself, must have a SCSI ID number (Ultra 160 Wide SCSI = 0 to 15). The ID defines each SCSI device on the SCSI bus. If there are more than one SCSI adapter in the Host subsystem, each adapter forms a separate SCSI bus. SCSI IDs can be reused as long as the ID is assigned to a device on a separate SCSI bus. Refer to the documentation that came with your peripheral device to determine the ID and how to change it.
4.2 Terminators Based on SCSI specifications, the SCSI bus must be terminated at both ends, meaning the devices that are connected to the ends of the SCSI bus must have their bus terminators enabled. Devices connected in the middle of the SCSI bus must have their terminators disabled. Proper termination allows data and SCSI commands to be transmitted reliably on the SCSI bus. The host adapter and the SCSI devices attached to it must be properly terminated, or they will not work reliably. Termination means that terminators are installed in the devices at each end of the bus. Some SCSI devices require you to manually insert or remove the SCSI Configuration Guidelines
4-1
terminators. Other devices have built-in terminators that are enabled or disabled via switches or software commands. Refer to the device’s documentation on how to enable or disable termination.
Attach the terminator included in the package to the Host Channel A & Host Channel B port before using the subsystem.
4-2
SCSI Configuration Guidelines
Chapter 5 Quick Setup Guide This Quick Setup Guide is intended as a shortcut so that experienced users can get their RAID subsystem started as quickly as possible. If this is your first time to configure the subsystem, the screen on the LCD panel will show the following message.
ENC-2100
Press the “CTRL 1” button on the front panel to enter the configuration menu of the subsystem to set parameters such as the memory size, firmware version, as well as the brand and capacity of the hard drives. You can also use this screen to enter the utility to further configure the subsystem.
TO CONTROLLER PRESS ANY KEY
Press any key to enter the configuration menu.
No Configuration XXXXXXXX
Quick Setup Guide
5-1
Before configuring the subsystem, make sure the subsystem is able to detect all the hard drives in the subsystem. This is to ensure that the disk trays and hard drives are functioning normally. While subsystem detects the hard drives after it is powered on, the characters at the bottom left corner of the screen will turn from “X” to “I” and will become “S” or “O” for the hard drives that have been detected. If there are four hard drives installed, the screen will appear as shown below after the hard drives have been detected.
{ Model Name} SSSSSSSS Disk 8
Disk 1
The characters on the second line of the screen denote the status of the hard drives installed in the subsystem. The first character from right to left refers to the first drive, the second character refers to the second drive and so on.
Disk Status “X” “I” “S” “O” “A” “R”
: : : : : :
No hard drive is installed in the slot. Detecting the hard drive in the slot. The hard drive in the slot is a spare drive or an online spare drive. The hard drive is online or operational. Rebuilding the newly replaced drive. The previous online drive has been removed.
A “ ” symbol flashing at the lower right corner of the screen indicates that the subsystem is functioning normally. The “ ” becomes “zZ” if the host is accessing the subsystem. It becomes “wW” when memory is writing the cache to a hard drive. If it is not flashing, there is a problem with the subsystem.
5-2
Quick Setup Guide
5.1 Entering the Password The subsystem is preset with a password. After initialization, pressing the “Select” button will display a prompt to enter the password. Enter 8 zeroes (‘00000000’) by selecting the characters with the up or down arrow buttons followed by the Select button. The main menu will then appear on the screen. For information on changing the default password, please refer to Section 6-9.
5.2 Performing Quick Setup 1.
To enter the Main Menu, press the “ ” Select button and enter the password. The screen will appear as shown below with Quick Setup as the first field in the Main Menu.
Main Menu 0 Quick Setup 2.
Press the “
” Select button to enter the Quick Setup menu.
0 Quick Setup 04 Level 5
3.
Press the up or down arrow button to select which RAID level you want to create and press the “ ” Select button. Shown below is RAID level 5. 04 Level 5 Disk Num 8
Quick Setup Guide
5-3
4.
Press the up or down arrow button to select how many hard disks you want to group and create for RAID and press the “ ” Select button. Eight hard disks have been selected in the diagram below.
Disk Num 8 NO 5.
Press the up or down arrow button to select ‘YES’ and press the “ Select button to confirm.
”
Disk Num 8 YES 6.
The RAID system will then restart and begin initializing. Please wait until initialization is complete as shown by the progress indicator in the upper right corner of the display. Init R5
1.1%
OOOOOOOO
7.
After the subsystem completes initialization, the screen will appear as shown below.
Init R5
DONE
OOOOOOOO
5-4
Quick Setup Guide
Chapter 6 Configuring the Subsystem The subsystem has a setup configuration utility built in containing important information about the configuration as well as settings for various optional functions in the subsystem. This chapter explains how to use and make changes to the setup utility.
6.1 Configuration Methods There are two methods of configuring the subsystem. You may configure through the LCD panel or by connecting a terminal or PC to the serial monitor port located at the rear of the subsystem.
!
Important: The subsystem allows you to access the utility using only one method at a time. You cannot use both methods at the same time.
6.1.1 Configuring through a Terminal Configuring through a terminal will allow you to use the same configuration options and functions that are available from the LCD panel. To start-up: 1.
Connect a VT100 compatible terminal or a PC operating in an equiva lent terminal emulation mode to the monitor port located at the rear of the subsystem.
! 2.
Note: You may connect a terminal while the subsystem’s power is on. Power-on the terminal.
Configuring the Subsystem
6-1
3.
Run the VT100 program or an equivalent terminal program.
4.
The default setting of the monitor port is 19200 baud rate, non-parity, 8 data bit and no flow control. See section 6-8 for information on configuring the terminal.
6.1.2 Configuring the Subsystem Using the LCD Panel If you are configuring the subsystem using the LCD panel, please refer to Section 1.3 for descriptions of the LCD screen and the functional buttons.
Up button Down button Select button Exit button
Parts
Function
Up or Down arrow buttons
Use the Up or Down arrow keys to go through the information on the LCD screen. This is also used to move between each menu when you configure the subsystem.
Select button
This is used to enter the option you have selected.
Exit button
Press this button to return to the previous menu.
6-2
Configuring the Subsystem
6.1.3 Menu Diagram The following tree diagram is a summary of the various configuration and setting functions that can be accessed through the LCD panel menus.
Configuring the Subsystem
6-3
6-4
Configuring the Subsystem
6.2 Starting the Monitor Utility 1.
After connecting and powering on the terminal, nothing will appear on the screen. Press -D to refresh the screen. Then press the key to go to the “Menu” side (left side) of the screen and press <Enter>. You will be prompted to enter a password.
Enter Passwd: 0
2.
The preset password is 8 zeroes. Type “00000000”.
Enter Passwd : 00000000
Configuring the Subsystem
6-5
3.
The Main Menu will appear.
“AZSX”: “A” - to move to the line above “Z” - to move to the next line “S” - Page Up “X” - Page Down “Tab”: to move between the left column (Menu) and the right column (Output)
The menu on the left column of the screen consists of user menus that allow configuration of the subsystem. The menus are the same as those displayed on the LCD panel. The “output” display in the right column shows the status and basic information about the subsystem.
6-6
Configuring the Subsystem
6.3 Quick Setup {Model Name} SSSSSSSS
1.
Press the “ ” Select button on the front panel. The system will prompt you to enter the password. Enter Passwd: 0
2.
Press the up or down arrow button followed by the “ ” Select button to enter the system password. If you did not previously change the system default password, enter the default password (eight zeroes ‘00000000’) to enter the main menu. Enter Passwd: 00000000
3.
The main menu will appear. Main Menu 0 Quick Setup
4.
Press the “
” Select button to enter the Quick Setup menu.
0 Quick Setup 04 Level 5
5.
Press the up or down arrow button to select the desired RAID level and press the “ ” Select button. The following diagram shows RAID level 5.
Configuring the Subsystem
6-7
04 Level 5 Disk Num 8 6.
Press the up or down arrow button to select how many disks are to be grouped and created for RAID and press the “ ” Select button. The diagram below shows eight (8) hard drives selected.
Disk Num 8 NO
7.
Press the up or down arrow button to select “YES” and press the “ Select button to confirm.
”
Disk Num 8 YES 8.
The RAID system will restart and begin initialization as shown by the progress indicator at the top right of the display.
Init R5
1.1%
OOOOOOOO
9.
After the subsystem completes initialization, the screen will appear as shown below.
Init R5
DONE
OOOOOOOO
6-8
Configuring the Subsystem
6.4 Creating a New RAID or Reconfiguring an Existing RAID {Model Name} OOOOOOOO
Press the “ ” Select button on the front panel. The system will prompt you to enter the password.
1.
Enter Passwd: 0 Press the up or down arrow button followed by the “ ” Select button to enter the system password. If you did not previously change the system default password, enter the default password (eight zeroes ‘00000000’) to enter the main menu.
2.
Enter Passwd: 00000000 3.
The main menu will appear. Main Menu 0 Quick Setup
4.
Press the down arrow button to enter the “RAID Params” menu. Main Menu 1 RAID Params
5.
Press the “
” Select button to enter the “Re-Conf RAID” submenu.
1 RAID Params 11 Re-Conf RAID
Configuring the Subsystem
6-9
6.
In the Re-Conf RAID submenu, press the down arrow button to select “YES” and then press the “ ” Select button. 11 Re-Conf RAID YES
7.
You will be returned to the RAID Params menu. Press the up or down arrow button and the “ ” Select button to enter the “RAID Level” submenu. 1 RAID Params 12 RAID Level
8.
In the RAID Level submenu, press the down arrow key to select which RAID Level (0, 1, 3, 5, 0+1) is desired and press the “ ” Select button to confirm. 12 RAID Level 5
9.
You will be returned to the RAID Params menu. Press the up or down arrow button and the “ ” Select button to enter the “Disk Number” submenu. 1 RAID Params 13 Disk Number
10.
In the Disk Number submenu, press the down arrow button to select the number of hard drives to be included in the RAID group.
13 Disk Number 8
6-10
Configuring the Subsystem
11.
Press the “Exit” button to return to the “RAID Params” menu.
Main Menu 1 RAID Params Warning: Do not leave the main menu until your changes have been saved (by updating the NVRAM, see below). 12.
Press down arrow button to select “SCSI Params” and press ‘ lect button.
‘ Se-
Main Menu 2 SCSI Params 13.
Press down arrow or up arrow button to select which SCSI Channel you want to select and press ‘ ‘ Select button to confirm. Here is Primary SCSI. 2 SCSI Params 21 Primary SCSI
14. Press ‘
‘ Select button to enter “Set SCSI ID” submenu.
21 Primary SCSI 211 Set SCSI ID 15.
In the Set SCSI ID submenu, press the up or down arrow button to select the SCSI ID the subsystem will be assigned (0 to 15) and press the “ ” Select button to confirm.
211 Set SCSI ID 0
Configuring the Subsystem
6-11
Note: By default, the subsystem SCSI ID is preset to zero (0). 16.
You will be returned to the Primary SCSI menu. Press the up or down arrow button and the “ ” Select button to enter the “Termination” submenu.
21 Primary SCSI 212 Termination 17.
In the Termination submenu, press the down arrow button to select “ENABLE” or “DISABLE” and press the “ ” Select button to confirm. If the subsystem is the last SCSI device on the bus, disable this function.
212 Termination DISABLE 18.
You will be returned to the Primary SCSI menu. Press the up or down arrow button and the “ ” Select button to enter the “Tag Queueing” submenu.
21 Primary SCSI 213 Tag Queueing 19.
In the Tag Queueing submenu, press the down arrow button to select “ENABLE”. When enabled, the SCSI channel is able to queue SCSI connect.
213 Tag Queueing ENABLE Warning: Do not leave the main menu until your changes have been saved as shown below. 6-12
Configuring the Subsystem
20.
Press ‘EXIT’ button to “SCSI Params” .
Main Menu 2 SCSI Params
21.
Press ‘
‘ Select button.
2 SCSI Params 21 Primary SCSI
22.
Press down arrow button to select Secondary SCSI.
2 SCSI Params 22 Secondary SCS
23. Press ‘
‘ Select button to enter “Set SCSI ID” submenu.
22 Secondary SCS 221 Set SCSI ID 24.
In the Set SCSI ID submenu, press the up or down arrow button to select the SCSI ID the subsystem will be assigned (0 to 15) and press the “ ” Select button to confirm.
221 Set SCSI ID 0
Configuring the Subsystem
6-13
Note: By default, the subsystem SCSI ID is preset to zero (0). 25.
You will return to the Secondary SCSI menu, press down arrow or up ‘ Select button to enter “Termination”. arrow button and ‘
22 Secondary SCS 222 Termination 26.
In the Termination submenu, press the down arrow button to select “ENABLE” or “DISABLE” and press the “ ” Select button to confirm. If the subsystem is the last SCSI device on the bus, disable this function.
222 Termination DISABLE 27.
You will return to the Secondary SCSI menu. Press the up or down arrow button and the “ ” Select button to enter the “Tag Queueing” submenu. 22 Secondary SCS 223 Tag Queueing
28.
In the Tag Queueing submenu, press the down arrow button to select “ENABLE”. When enabled, the SCSI channel is able to queue SCSI connect.
223 Tag Queueing ENABLE Warning: Do not leave the main menu until your changes have been saved as shown below. 6-14
Configuring the Subsystem
29.
Press the “Exit” button to return to the Main Menu. Press the up or down arrow button and the “ ” Select button to enter the “NVRAM” menu.
Main Menu 5 NVRAM
30.
Press ‘
‘ Select button.
5 NVRAM 51 Update NVRAM
31.
In the Update NVRAM menu, select Yes.
51 Update NVRAM YES
32.
You will return to the NVRAM menu.Slect Restart.
5 NVRAM 53 Restart 33.
In the Restart menu, select Yes. Your subsystem will restart and initialize.
53 Restart YES
Configuring the Subsystem
6-15
6.5 Changing the Host Channel’s SCSI ID If you discover that the SCSI ID you selected earlier is used by another device on the same SCSI bus, you can change the subsystem’s SCSI ID by following the steps below.
{Model Name} OOOOOOOO
1.
Press the “ ” Select button on the front panel. The system will prompt you to enter the password. Enter Passwd: 0 Press the up or down arrow button followed by the “ ” Select button to enter the system password. If you did not previously change the system default password, enter the default password (eight zeroes ‘00000000’) to enter the main menu.
2.
Enter Passwd: 00000000 3.
The main menu will appear. Main Menu 0 Quick Setup
4.
Press the down arrow button to select the “SCSI Params” menu. Main Menu 2 SCSI Params
6-16
Configuring the Subsystem
5.
Press down arrow or up arrow button to select which SCSI Channel you ‘ Select button to confirm. Here is Primary want to select and press ‘ SCSI. 2 SCSI Params 21 Primary SCSI
6.
Press ‘
‘ Select button to enter “Set SCSI ID” submenu.
21 Primary SCSI 211 Set SCSI ID 7.
In the Set SCSI ID submenu, press the up or down arrow button to select the desired SCSI ID (0 to 15) and press the “ ” Select button to confirm. The SCSI ID selected in the example below is 2.
211 Set SCSI ID 2 Warning: Do not leave main menu until your changes have been saved (by updating the NVRAM as shown below. 8.
Press ‘EXIT’ button to return to SCSI Params. Main Menu 2 SCSI Params
9.
Press down arrow button to select “Secondary SCSI”. 2 SCSI Params 22 Secondary SCS
Configuring the Subsystem
6-17
10.
Press ‘
‘ Select button to enter “Set SCSI ID” submenu.
22 Secondary SCS 221 Set SCSI ID 11.
In the Set SCSI ID submenu, press the up or down arrow button to select the desired SCSI ID (0 to 15) and press the “ ” Select button to confirm. The SCSI ID selected in the example below is 3.
221 Set SCSI ID 3 Warning: Do not leave main menu before you save your change. 12.
Press the “Exit” button to return to the Main Menu and press the up or down arrow button followed by the “ ” Select button to enter the “NVRAM” menu.
Main Menu 5 NVRAM 13.
Press the “
” Select button to enter the “Update NVRAM” submenu.
5 NVRAM 51 Update NVRAM 14.
In the Update NVRAM submenu, select Yes.
51 Update NVRAM YES
6-18
Configuring the Subsystem
15.
You will return to the NVRAM menu.Slect Restart.
5 NVRAM 53 Restart
16.
In the Restart submenu, select Yes. Your subsystem will restart.
53 Restart YES
17.
After restarting, your subsystem will assume the SCSI ID you have just assigned to it. If your host still does not detect the subsystem, follow the above steps to try a different ID.
Configuring the Subsystem
6-19
6.6 Erasing an Exiting Configuration
{Model Name} OOOOOOOO
1.
Press the “ ” Select button on the front panel. The system will prompt you to enter the password.
Enter Passwd: 0
Press the up or down arrow button followed by the “ ” Select button to enter the system password. If you did not previously change the system default password, enter the default password (eight zeroes‘00000000’) to enter the main menu.
2.
Enter Passwd: 00000000
3.
The main menu will appear.
Main Menu 0 Quick Setup
6-20
Configuring the Subsystem
4.
Press the down arrow button to select the “NVRAM” menu. Main Menu 5 NVRAM
5.
Press the down arrow button to select the “Erase NVRAM” submenu.
5 NVRAM 52 Erase NVRAM
6.
In the Erase NVRAM submenu, select “YES”.
52 Erase NVRAM YES 7.
You will return to the NVRAM menu. Select “Restart”.
5 NVRAM 53 Restart 8.
In the Restart menu, select “YES”. Your subsystem will restart.
53 Restart YES
Configuring the Subsystem
6-21
6.7 Formatting Hard Drives
{Model Name} SSSSSSSS
1.
Press ‘ ‘ Select button from front panel and system will prompt you to enter the password.
Enter Passwd: 0
2.
Press down arrow or up arrow button and ‘ ‘ Select button to enter the system password. If you did not change the system default password please enter the default password eight zero ‘00000000’ to enter the main menu. Enter Passwd: 00000000
3.
The main menu appear.
Main Menu 0 Quick Setup
6-22
Configuring the Subsystem
4.
Press down arrow button to select ‘RAID Funcs’.
Main Menu 6 RAID Funcs
5.
Press down arrow button to select “Format Disk”. 6 RAID Funcs 61 Format Disk
6.
In the Format Disk menu, select the hard drive you want to format. If you wish to format all the hard drives in your subsystem, select Format All. The hard drive that was selected in the example below is the drive in the first slot.
61 Format Disk 611 Format Disk1
Note: If you want to formate a hard disk, please make sure the status of the hard drive is “S”. 7.
In the Format Disk1 menu, select Start. 611 Format Disk1 START
8.
Now the RAID system will be starting formating disk.
Configuring the Subsystem
6-23
6.8 Configuring the Terminal A terminal must be connected in order to use GUI management software and to upgrade the subsystem firmware.
{Model Name} OOOOOOOO
1.
Press the “ ” Select button on the front panel. The system will prompt you to enter the password.
Enter Passwd: 0 2.
Press the up or down arrow button followed by the “ ” Select button to enter the system password. If you did not previously change the system default password, enter the default password (eight zeroes‘00000000’) to enter the main menu.
Enter Passwd: 00000000 3.
The main menu will appear.
Main Menu 0 Quick Setup 4.
Press the down arrow button to select the “RS232 Params” menu.
Main Menu 3 RS232 Params
6-24
Configuring the Subsystem
5.
Press the down arrow button to select the “Terminal Port” submenu. 3 RS232 Params 32 Terminal Port
6.
In the Terminal Port submenu, select “Baud Rate”.
32 Terminal Port 321 Baud Rate 7.
In the Baud Rate submenu, select the baud rate of your terminal.
321 Baud Rate 19200 8.
Baud Rate Values: 2400, 4800, 9600, 19200, 28800, 38400, 57600, 115200 Preset Value: 19200
You will return to the Terminal Port submenu. Select “Stop Bit”.
32 Terminal Port 322 Stop Bit 9.
Stop Bit Values: 0, 1 Preset Value: 1
In the Stop Bit submenu, select the appropriate stop bit. 322 Stop Bit 1
10.
You will return to the Terminal Port menu. Select “Data Bit”.
32 Terminal Port 323 Data Bit
11.
In the Data Bit submenu, select the appropriate data bit. Configuring the Subsystem
6-25
Data Bit Values: 7, 8 Preset Value: 8
323 Data Bit 8 12.
You will return to the Terminal Port menu. Select “Parity”.
32 Terminal Port 324 Parity
13.
In the Parity submenu, select “ODD”, “EVEN” or “NONE”.
324 Parity NONE 14.
Preset Value: NONE
Press the “Exit” button to return to the Main Menu. Press the up or down arrow button followed by the “ ” Select button to enter the “NVRAM”.menu.
Main Menu 5 NVRAM 15.
Press the “
” Select button to enter the “Update NVRAM” submenu.
5 NVRAM 51 Update NVRAM
16.
In the Update NVRAM submenu, select “YES”.
51 Update NVRAM YES
6-26
Configuring the Subsystem
6.9 Setting a Password Warning: Do not forget the revised password after it has been changed.
{Model Name} OOOOOOOO
1.
Press the “ ” Select button on the front panel. The system will prompt you to enter the password.
Enter Passwd: 0 2.
Press the up or down arrow button followed by the “ ” Select button to enter the system password. If you did not previously change the system default password, enter the default password (eight zeroes‘00000000’) to enter the main menu. Enter Passwd: 00000000
3.
The main menu will appear. Main Menu 0 Quick Setup
4.
Press the down arrow button to select the “System Params”’ menu.
Main Menu 4 System Params
Configuring the Subsystem
6-27
5.
Press the down arrow button to select the ‘Passwd Info’ submenu. 4 System Params 41 Passwd Info
6.
You will return to the Passwd Info menu. Select “Set Passwd”.
41 Passwd Info 412 Set Passwd 7.
In the Set Passwd submenu, enter your new password.
412 Set Passwd 0 8.
Press the “Exit” button to return to the Main Menu. Press the up or down arrow button followed by the “ ” Select button to enter the “NVRAM” menu. Main Menu 5 NVRAM
9.
Press the “
” Select button.
5 NVRAM 51 Update NVRAM
10.
In the Update NVRAM menu, select “YES”.
51 Update NVRAM YES
6-28
Configuring the Subsystem
6.10 R5(RAID Level 5) / R3(RAID Level 3) Consistency Check This function is used to verify the integrity of the initialized RAID system. {Model Name} OOOOOOOO
1.
Press the “ ” Select button on the front panel. The system will prompt you to enter the password.
Enter Passwd: 0 2.
Press the up or down arrow button followed by the “ ” Select button to enter the system password. If you did not previously change the s y s t e m default password, enter the default password (eight zeroes‘00000000’) to enter the main menu. Enter Passwd: 00000000
3.
The main menu will appear. Main Menu 0 Quick Setup
4.
Press the down arrow button to select the “RAID Funcs” menu.
Main Menu 6 RAID Funcs
Configuring the Subsystem
6-29
5.
Press the down arrow button to select the “R5 / R3 Check” submenu. 6 RAID Funcs 63 R5 / R3 Check
6.
In the R5 / R3 Check menu, select “START”. 63 R5 / R3 Check START
6-30
Configuring the Subsystem
6.11 Rebuilding
{Model Name} OOOOOORO
!
1.
Important: The subsystem supports “Hot-Plug” functions. Normally, the subsystem will automatically rebuild the RAID once a defective drive has been replaced. You do not need to manually rebuild unless problems occur during automatic rebuild. The front panel will show the slot number of the failed drive and HDD status LED of front panel will change to red. The panel display below indicates that the drive in slot number two will be rebuilt.
Adding(2)
1.1%
OOOOOOAO
2.
The display will indicate the progress of the rebuild operation.
Configuring the Subsystem
6-31
6.12 Deleting RAID {Model Name} OOOOOOOO
1.
Press the “ ” Select button on the front panel. The system will prompt you to enter the password.
Enter Passwd: 0
2.
Press the up or down arrow button followed by the “ ” Select button to enter the system password. If you did not previously change the system default password, enter the default password (eight zeroes ‘00000000’) to enter the main menu.
Enter Passwd: 00000000
3.
The main menu will appear.
Main Menu 0 Quick Setup
6-32
Configuring the Subsystem
4.
Press the down arrow button to select the “RAID Params” menu.
Main Menu 1 RAID Params 5.
Press the down arrow button to select the “Re-Conf RAID” submenu. 1 RAID Params 11 Re-Conf RAID
6.
In the Re-Conf RAID submenu, Press the down arrow button to select “YES”. 11 Re-Conf RAID YES
7.
You will return to the RAID Params menu. Press the down arrow button to select the “RAID Level” submenu. 1 RAID Params 12 RAID Level
8.
In the RAID Level submenu, select “NONE”. 12 RAID Level NONE
9.
Press the “Exit” button to return to the Main Menu. Press the up or down arrow button followed by the “ ” Select button to enter the “NVRAM” menu. Main Menu 5 NVRAM
Configuring the Subsystem
6-33
10.
Press the “
” Select button to enter the “Update NVRAM” submenu.
5 NVRAM 51 Update NVRAM 11.
In the Update NVRAM submenu, select “YES”.
51 Update NVRAM YES 12.
You will return to the NVRAM menu. Select “Restart”.
5 NVRAM 53 Restart 13.
In the Restart menu, select “YES”. Your subsystem will restart.
53 Restart YES
6-34
Configuring the Subsystem
6.13 Creating 1 Array 2 Slice for 2 Host {Model Name} OOOOOOOO
1.
Press the “ ” Select button on the front panel. The system will prompt you to enter the password.
Enter Passwd: 0
2.
Press the up or down arrow button followed by the “ ” Select button t o enter the system password. If you did not previously change the s y s t e m default password, enter the default password (eight zeroes ‘00000000’) to enter the main menu.
Enter Passwd: 00000000
3.
The main menu will appear.
Main Menu 0 Quick Setup
Configuring the Subsystem
6-35
4.
Press the down arrow button to select the “RAID Params” menu.
Main Menu 1 RAID Params 5.
Press the down arrow button to select the “RAID Level” submenu.
1 RAID Params 12 RAID Level 6.
In the RAID Level submenu, press the down arrow button to select which RAID Level (0, 1, 3, 5, 0+1) you want to set and press the “ ” Select button to confirm.
12 RAID Level 5
7.
You will return to the RAID Params menu. Press the up or down arrow button followed by the “ ” Select button to enter the “Disk Number” submenu. 1 RAID Params 13 Disk Number
8.
In the Disk Number submenu, press the down arrow button to select the number of hard drives to be included in the RAID group. 13 Disk Number 8
6-36
Configuring the Subsystem
9.
Press the “Exit” button to return to the Main Menu. Press the up or down arrow button followed by the “ ” Select button to enter the NVRAM” menu. Main Menu 5 NVRAM
10.
Press the “
” Select button to enter the “Update NVRAM” submenu.
5 NVRAM 51 Update NVRAM
11.
In the Update NVRAM menu, select “YES”.
51 Update NVRAM YES 12.
You will return to the NVRAM menu. Select “Restart”.
5 NVRAM 53 Restart 13.
In the Restart submenu, select “YES”. Your subsystem will restart and initialize.
53 Restart YES
Configuring the Subsystem
6-37
14.
You will return to the Main Menu. Press the up or down arrow button followed by the “ ” Select button to enter the “RAID Params” menu.
Main Menu 1 RAID Params 15.
Press the “
” Select button.
1 RAID Params 11 Re-Conf RAID 16.
Press the down arrow button to select the “Slice” submenu.
1 RAID Params 14 Slice 17.
In the Slice submenu, press the down arrow button to select “Slice0”.
14 Slice 141 Slice0 (MB)
18.
Press the “ ” Select button to enter the size of this slice in megabytes. For example, “1000” means 1000MB (1GB).
141 Slice0 (MB) 1000 19.
Press the “
” Select button.
14 Slice 141 Slice0 (MB)
6-38
Configuring the Subsystem
20.
Press the down arrow button to choose “Slice1” and press the “ Select button.
”
14 Slice 142 Slice1 (MB) 21.
Press the “ ‘ Select button to enter the size of this slice in megabytes. For example, “1000” means 1000MB (1GB).
142 Slice1 (MB) 1000 22.
Press the “
” Select button.
14 Slice 142 Slice1 (MB) 23.
Press the “Exit” button to return to the Main Menu. Press the up or down arrow button followed by the “ ” Select button to enter the “SCSI Params” menu.
Main Menu 2 SCSI Params 24.
Press the “
” Select button.
2 SCSI Params 21 Primary SCSI
25.
Press the down arrow button to select the “Lun Map” submenu.
21 Primary SCSI 216 Lun Map
Configuring the Subsystem
6-39
26. Press the ‘
‘ Select button to enter “Lun Map” submenu.
216 Lun Map 2161 Lun 0 27. Press the ‘
‘ Select button to map “slice 0” to LUN 0.
2161 Lun 0 Slice 0 28.
Press the ‘EXIT’ button to “SCSI Params”.
2 SCSI Params 21 Primary SCSI 29.
Press the down arrow button to select Secondary SCSI.
2 SCSI Params 22 Secondary SCSI
30.
Press the down arrow button to select “Lun Map”.
22 Secondary SCS 226 Lun Map
31. Press the ‘
‘ Select button to enter “Lun Map” submenu.
226 Lun Map 2261 Lun 0
6-40
Configuring the Subsystem
32. Press the ‘
‘ Select button to map “slice 1” to LUN 0.
2261 Lun 0 Slice 1 33.
Press the ‘EXIT’ button to return to the Main Menu, Press the down ‘ Select button to enter the arrow or up arrow button and the ‘ “NVRAM” menu.
Main Menu 5 NVRAM 34.
Press ‘
‘ Select button.
5 NVRAM 51 Update NVRAM 35.
In the Update NVRAM submenu, select “Yes”.
51 Update NVRAM YES 36.
You will return to the NVRAM menu.Slect “Restart”.
5 NVRAM 53 Restart 37.
In the Restart menu, select “Yes”. Your subsystem will restart.
53 Restart YES
Configuring the Subsystem
6-41
6.14 Creating 1 Array for 2 Host Warning: This configuration is for Cluster RAID.
{Model Name} OOOOOOOO
Press the “ ” Select button on the front panel. The system will prompt you to enter the password.
1.
Enter Passwd: 0
Press the up or down arrow button followed by the “ ” Select button t o enter the system password. If you did not previously change the s y s t e m default password, enter the default password (eight zeroes ‘00000000’) to enter the main menu.
2.
Enter Passwd: 00000000
3.
The main menu will appear.
Main Menu 0 Quick Setup
6-42
Configuring the Subsystem
4.
Press the down arrow button to select the ‘RAID Params’ menu. Main Menu 1 RAID Params
5.
Press the down arrow button to select the “RAID Level” submenu. 1 RAID Params 12 RAID Level
6.
In the RAID Level submenu, press the down arrow button to select which RAID Level (0, 1, 3, 5, 0+1) you want to set and press the “ ” Select button to confirm. 12 RAID Level 5
7.
You will return to the RAID Params menu. Press the up or down arrow button followed by the “ ” Select button to enter the “Disk Number” submenu. 1 RAID Params 13 Disk Number
8.
In the Disk Number submenu, press the down arrow button to select the number of hard drive to be included in the RAID group. 13 Disk Number 8
Configuring the Subsystem
6-43
9.
Press the “Exit” button to return to the Main Menu. Press the up or down arrow button followed by the “ ” Select button to enter the NVRAM” menu. Main Menu 5 NVRAM
10.
Press the “
” Select button to enter the “Update NVRAM” submenu.
5 NVRAM 51 Update NVRAM 11.
In the Update NVRAM menu, select “YES”.
51 Update NVRAM YES 12.
You will return to the NVRAM menu. Select “Restart”.
5 NVRAM 53 Restart 13.
In the Restart submenu, select “YES”. Your subsystem will restart and initialize.
53 Restart YES
6-44
Configuring the Subsystem
14.
You will return to the Main Menu, Press the down arrow or up arrow ‘ Select button to enter “SCSI Params”. button followed by the ‘
Main Menu 2 SCSI Params 15.
Press the ‘
‘ Select button.
2 SCSI Params 21 Primary SCSI 16.
Press the down arrow button to select “Lun Map”.
21 Primary SCSI 216 Lun Map 17. Press the ‘
‘ Select button to enter “Lun Map” submenu.
216 Lun Map 2161 Lun 0 18. Press the ‘
‘ Select button to map “slice 0” to LUN 0.
2161 Lun 0 Slice 0 19.
Press the ‘EXIT’ button to ”SCSI Params”.
2 SCSI Params 21 Primary SCSI
Configuring the Subsystem
6-45
20.
Press the down arrow button to select “Secondary SCSI”.
2 SCSI Params 22 Secondary SCSI
21.
Press the down arrow button to select “Lun Map”.
22 Secondary SCS 226 Lun Map
22. Press the ‘
‘ Select button to enter “Lun Map” submenu.
226 Lun Map 2261 Lun 0 23. Press the ‘
‘ Select button to map ‘slice 0’ to LUN 0.
2261 Lun 0 Slice 0 24.
Press the ‘EXIT’ button to return to the Main Menu, Press the down ‘ Select button to “NVRAM”. arrow or up arrow button and the ‘
Main Menu 5 NVRAM 25.
Press the ‘
‘ Select button.
5 NVRAM 51 Update NVRAM
6-46
Configuring the Subsystem
26.
In the Update NVRAM menu, select “Yes”.
51 Update NVRAM YES 27.
You will return to the NVRAM menu.Slect “Restart”.
5 NVRAM 53 Restart 28.
In the Restart menu, select Yes. Your subsystem will restart.
53 Restart YES
Configuring the Subsystem
6-47
6.15 Epanding the Array (Online Expansion) {Model Name} OOOOOOOS
1.
Press the “ ” Select button on the front panel. The system will prompt you to enter the password.
Enter Passwd: 0 2.
Press the up or down arrow button followed by the “ ” Select button to enter the system password. If you did not previously change the system default password, enter the default password (eight zeroes ‘00000000’) to enter the main menu. Enter Passwd: 00000000
3.
The main menu will appear. Main Menu 0 Quick Setup
4.
Press the down arrow button to select the “RAID Funcs” menu. Main Menu 6 RAID Funcs
5.
In the RAID Funcs menu, select “Expand Array”.
6 RAID Funcs 69 Expand Array
6-48
Configuring the Subsystem
6.
In the Expand Array submenu, select the number of hard drives you want to expand and press the “ ” Select button to confirm. 69 Expand Array 691 1 Disk
7.
Select “YES” to start the expand process.
691 1 Disk YES
Expanding 26.1% OOOOOOOA
8.
When complete (100%), press the “ ” Select button to return to the Main Menu. Press the down arrow button to select ‘RAID Params’. Main Menu 1 RAID Params
9.
Press the down arrow button to select the “Slice” submenu. 1 RAID Params 14 Slice
10.
In the Slice submenu, press the down arrow button to select “Slice1”.
14 Slice 142 Slice1 (MB)
Configuring the Subsystem
6-49
11.
Press the “ ” Select button to enter the amount to expand the size for this slice in megabytes. For example, “1000” means 1000MB.
142 Slice1 (MB) 1000 12.
Press the “
” Select button.
14 Slice 142 Slice1 (MB) 13.
Press the “Exit” button to return to the Main Menu. Press the up or down arrow button to enter the “SCSI Params” menu.
Main Menu 2 SCSI Params 14.
Press the down arrow button to enter “Secondary SCSI ” Menu.
2 SCSI Params 22 Secondary SCS 15.
Press the down arrow button to select the “Lun Map” submenu.
22 Secondary SCS 226 Lun Map 16. Press the “
” Select button to enter “Lun Map” submenu.
226 Lun Map 2261 Lun 0
6-50
Configuring the Subsystem
17.
Press the “
” Select button to map ‘Slice 1’ to LUN 0.
2261 Lun 0 Slice 1 18.
Press the “Exit” button to return to the Main Menu. Press the up or down arrow button followed by the “ “ Select button to enter the “NVRAM” menu.
Main Menu 5 NVRAM 19.
Press the “
” Select button to enter the “Update NVRAM” submenu.
5 NVRAM 51 Update NVRAM 20.
In the Update NVRAM menu, select “YES”.
51 Update NVRAM YES 21.
You will return to the NVRAM menu. Select Restart.
5 NVRAM 53 Restart 22.
In the Restart menu, select “YES”. Your subsystem will restart and initialize.
53 Restart YES Configuring the Subsystem
6-51
Chapter 7 Configuring Faxes and Pagers Before continuing with this section, ensure that the fax modem is properly connected to the serial modem port at the rear of the subsystem.
7.1 Configuring the Fax The subsystem supports two fax numbers. In case a hard drive fails to function, a message will be transmitted to the fax machine informing the administrator that a problem has occured. You may set the number of times it will retry in case the line is busy. 1.
In the Main Menu, select the “RS232 Params” menu.
Main Menu 3 RS232 Params
Configuring Faxes and Pagers
7-1
2.
In the RS232 Params menu, select “MODEM Port”.
3 RS232 Params 31 MODEM Port
3.
In the MODEM Port menu, select the “Baud Rate” submenu.
31 MODEM Port 311 Baud Rate 4.
In the Baud Rate submenu, select the baud rate of your modem.
311 Baud Rate 19200
5.
Your will return to the MODEM Port submenu. Select “Stop Bit”.
31 MODEM Port 312 Stop Bit
7-2
Configuring Faxes and Pagers
6.
In the Stop Bit menu, select the appropriate stop bit. 312 Stop Bit 1
7.
You will return to the MODEM Port menu. Select the “Data Bit” submenu. 31 MODEM Port 313 Data Bit
8.
In the Data Bit submenu, select the appropriate data bit.
313 Data Bit 8
9.
You will return to the MODEM Port menu. Select the “Parity” submenu. 31 MODEM Port 314 Parity
10.
In the Parity submenu, select “ODD”, “EVEN” or “NONE”.
314 Parity NONE
Configuring Faxes and Pagers
7-3
7.2 Configuring the Pager The subsystem supports two pager numbers. In case a hard drive fails to function, the pager will send a message to a set number, informing the administrator that a problem has occurred. You may set the number of times the pager will dial the number and the time interval between each call. 1.
In the Main Menu, select “System Params.”
Main Menu 4 System Params
2.
In the System Params menu, select the “Pager Info” submenu.
4 System Params 42 Pager Info
3.
7-4
In the Pager Info menu, select the “Paging” submenu.
Configuring Faxes and Pagers
42 Pager Info 421 Paging 4.
In the Paging submenu, select “ENABLE”. 421 Paging ENABLE
5.
You will return to the Pager Info menu. Select the “Pager1 No.” submenu.
42 Pager Info 422 Pager1 No. 6.
In the Pager1 No. menu, select the “Tel No.” submenu. 422 Pager1 No. 4221 Tel No.
7.
In the Tel No. menu, enter the pager number. You may enter up to 16 characters. 4221 Tel No. 0
8.
You will return to the Pager1 No. menu. Select the “Pin No.” submenu.
422 Pager1 No. 4222 Pin No.
Configuring Faxes and Pagers
7-5
9.
In the Pin No. submenu, enter the pin number. You may enter up to 16 characters. 4222 Pin No. 0
10. Press the “EXIT” button to return to the Pager Info menu. If you wish to enter another pager number, select the “Pager2 No.” submenu. 42 Pager Info 423 Pager2 No.
11. In the Pager2 No. menu, select the “Tel No.” submenu.
423 Pager2 No. 4231 Tel No.
12. In the Tel No. submenu, enter the pager number. You may enter up to 16 characters. 4231 Tel No. 0
13. You will return to the Pager2 No. menu. Select the “Pin No.” submenu.
423 Pager2 No. 4232 Pin No.
7-6
Configuring Faxes and Pagers
14. In the Pin No. submenu, enter the pin number. You may enter up to 16 characters. 4232 Pin No. 0
15. Press the “EXIT” button to return to the Pager info menu. Select the “Code” submenu. 42 Pager Info 424 Code
16. The Code submenu allows you to enter 2 messages. To enter the first message, select the “Part 1” submenu. 424 Code 4241 Part 1
17. In the Part 1 submenu, enter your message (code) by entering a maximum of 16 alphanumeric characters.
4241 Part 1 0
18. You will return to the Code submenu. If you wish to enter a second message, select the “Part 2” submenu.
424 Code 4242 Part 2
Configuring Faxes and Pagers
7-7
19. In the Part 2 submenu, enter a message (code) by entering a maximum of 16 alphanumeric characters. 4242 Part 2 0
20. Press the “EXIT” button to return to the Pager info menu. Select the “Repeat #” submenu. 42 Pager Info 425 Repeat #
21. In the Repeat # submenu, select the number of times you would like the number to be paged.
425 Repeat # 5
22. You will return to the Pager info menu. Select the “Interval” submenu.
42 Pager Info 426 Interval
23. In the Interval submenu, select the time interval (in minutes) between each paging call.
426 Interval 5
7-8
Configuring Faxes and Pagers
24. You will return to the Pager Info menu. Select the “Page Now” function. This will call the number to check whether the pager number is correct and that your pager is working normally.
42 Pager Info 427 Page Now
7.3 Configuring a Fax Modem The subsystem supports two fax numbers. If a hard drive fails to function, a message can be transmitted to a fax machine informing the administrator that a problem has occurred. The number of times the fax modem will retry can be set in case the line is busy. 1.
In the Main Menu, select the “System Params” menu.
Main Menu 4 System Params
Configuring Faxes and Pagers
7-9
2.
In the System Params menu, select the “FAX Info” submenu.
4 System Params 43 FAX Info 3.
In the FAX Info submenu, select “FAX”. 43 FAX Info 431 FAX
4.
In the FAX submenu, select “ENABLE”. 431 FAX ENABLE
5.
You will return to the FAX Info menu. Select the “FAX1 No.” submenu. 43 FAX Info 433 FAX1 No.
6.
In the FAX1 No. submenu, enter the fax number. Up to 16 characters may be entered. 433 FAX1 No. 0
7.
You will return to the FAX Info menu. If you wish to enter another fax number, select the “FAX2 No.” submenu. 43 FAX Info 434 FAX2 No.
7-10
Configuring Faxes and Pagers
8.
In the FAX2 No. submenu, enter a fax number up to 16 characters in length.
434 FAX2 No. 0
9.
You will return to the FAX Info menu. Select “Retry #”.
43 FAX Info 435 Retry #
10. In the Retry # submenu, select the number of times you would like to retry transmitting the fax.
435 Retry# 5
11. You will return to the FAX Info menu. Select “FAX Now”. This will check if your fax number is correct and that the fax machine is working normally.
43 FAX Info 436 FAX Now
12. You will return to the System Params menu. Select “Company Info”.
4 System Params 44 Company Info
Configuring Faxes and Pagers
7-11
13. The Company Info menu allows you to enter two lines of company information. To enter the first line, select “String 1”. 44 Company Info 441 String 1
14. In the String 1 submenu, enter the first line of company information. 441 String 1 0
15. You will return to the Company Info menu. To enter the second line of company information, select “String 2”. 44 Company Info 442 String 2
16. In the String 2 submenu, enter the second line of company information.
442 String 2 0
7-12
Configuring Faxes and Pagers
Chapter 8 Upgrading the Firmware The subsystem allows you to upgrade the firmware by accessing the RAID controller through a terminal.
To upgrade the firmware, please follow the steps below. 1.
In the Main Menu, select the “RAID Funcs” menu.
Upgrading the Firmware
8-1
2.
In the RAID Funcs menu, select the “Update ROM” submenu.
3.
Press <Enter>. The following message will appear:
Before downloading the new firmware, shutdown the host computer system. Are you ready to download the new firmware?(Y/N)
8-2
Upgrading the Firmware
4.
Ensure that the host computer is shut down and enter “Y”. The following message will appear:
Before downloading the new firmware, shutdown the host computer system. Are you ready to download the new firmware?(Y/N) Y Are you sure? (Y/N)
5.
To double confirm type “Y” again. The following message will appear:
Before downloading the new firmware, shutdown the host computer system. Are you ready to download the new firmware?(Y/N) Y Are you sure? (Y/N) Y Begin firmware file transfer now. To abort download restart the RAID system.
Upgrading the Firmware
8-3
6.
In the terminal program’s menu bar, select the “Transfer” menu.
7.
The Transfer scroll-down menu will appear. Select “Send Text File”.
8.
The Send Text File dialog box will appear. Select the drive and file where the new firmware is located and click “Open”.
9.
After the file has been completely transmitted the following message will be displayed. Before downloading the new firmware, shutdown the host computer system. Are you ready to download the new firmware?(Y/N) Y Are you sure? (Y/N) Y Begin firmware file transfer now. To abort download restart the RAID system. 00054F00 File transfer complete. Checksum = 0x8E78 : OK. New firmware transfer complete. Enter 'Go' to update the firmware.
8-4
Upgrading the Firmware
10. Type “Go”. The command is case senstive.
Before downloading the new firmware, shutdown the host computer system. Are you ready to download the new firmware?(Y/N) Y Are you sure? (Y/N) Y Begin firmware file transfer now. To abort download restart the RAID system. 00054F00 File transfer complete. Checksum = 0x8E78 : OK. New firmware transfer complete. Enter 'Go' to update the firmware. Go Enter 'Go' to reconfirm.
11. You will be asked to reconfirm. Type “Go” again. 12. The subsystem will restart.
Upgrading the Firmware
8-5
Appendix A RAID Levels RAID Fundamentals The basic idea of RAID (Redundant Array of Independent Disks) is to combine multiple inexpensive disk drives into an array of disk drives to obtain performance, capacity and reliability that exceeds that of a single large drive. The array of drives appears to the host computer as a single logical drive. The Mean Time Between Failure (MTBF) of the array is equal to the MTBF of an individual drive, divided by the number of drives in the array. Because of this, the MTBF of a non-redundant array (RAID 0) is too low for mission-critical systems. However, disk arrays can be made fault-tolerant by redundantly storing information in various ways. Five types of array architectures, RAID 1 through RAID 5, were originally defined, each provides disk fault-tolerance with different compromises in features and performance. In addition to these five redundant array architectures, it has become popular to refer to a non-redundant array of disk drives as a RAID 0 array.
Disk Striping Fundamental to RAID technology is striping. This is a method of combining multiple drives into one logical storage unit. Striping partitions the storage space of each drive into stripes, which can be as small as one sector (512 bytes) or as large as several megabytes. These stripes are then interleaved in a rotating sequence, so that the combined space is composed alternately of stripes from each drive. The specific type of operating environment determines whether large or small stripes should be used.
RAID Levels
A-1
Most operating systems today support concurrent disk I/O operations across multiple drives. However, in order to maximize throughput for the disk subsystem, the I/O load must be balanced across all the drives so that each drive can be kept busy as much as possible. In a multiple drive system without striping, the disk I/O load is never perfectly balanced. Some drives will contain data files that are frequently accessed and some drives will rarely be accessed.
By striping the drives in the array with stripes large enough so that each record falls entirely within one stripe, most records can be evenly distributed across all drives. This keeps all drives in the array busy during heavy load situations. This situation allows all drives to work concurrently on different I/O operations, and thus maximize the number of simultaneous I/O operations that can be performed by the array.
Definition of RAID Levels RAID 0 is typically defined as a group of striped disk drives without parity or data redundancy. RAID 0 arrays can be configured with large stripes for multi-user environments or small stripes for single-user systems that access long sequential records. RAID 0 arrays deliver the best data storage efficiency and performance of any array type. The disadvantage is that if one drive in a RAID 0 array fails, the entire array fails.
A-2
RAID Levels
RAID 1, also known as disk mirroring, is simply a pair of disk drives that store duplicate data but appear to the computer as a single drive. although striping is not used within a single mirrored drive pair, multiple RAID 1 arrays can be striped together to create a single large array consisting of pairs of mirrored drives. All writes must go to both drives of a mirrored pair so that the information on the drives is kept identical. However, each individual drive can perform simultaneous, independent read operations. Mirroring thus doubles the read performance of a single non-mirrored drive and while the write performance is unchanged. RAID 1 delivers the best performance of any redundant array type. In addition, there is less performance degradation during drive failure than in RAID 5 arrays.
RAID Levels
A-3
RAID 3 sector-stripes data across groups of drives, but one drive in the group is dedicated to storing parity information. RAID 3 relies on the embedded ECC in each sector for error detection. In the case of drive failure, data recovery is accomplished by calculating the exclusive OR (XOR) of the information recorded on the remaining drives. Records typically span all drives, which optimizes the disk transfer rate. Because each I/O request accesses every drive in the array, RAID 3 arrays can satisfy only one I/O request at a time. RAID 3 delivers the best performance for single-user, single-tasking environments with long records. Synchronized-spindle drives are required for RAID 3 arrays in order to avoid performance degradation with short records. RAID 5 arrays with small stripes can yield similar performance to RAID 3 arrays.
Under RAID 5 parity information is distributed across all the drives. Since there is no dedicated parity drive, all drives contain data and read operations can be overlapped on every drive in the array. Write operations will typically access one data drive and one parity drive. However, because different records store their parity on different drives, write operations can usually be overlapped.
A-4
RAID Levels
Dual-level RAID achieves a balance between the increased data availability inherent in RAID 1 and RAID 5 and the increased read performance inherent in disk striping (RAID 0). These arrays are sometimes referred to as RAID 0+1 or RAID 10 and RAID 0+5 or RAID 50. In summary: ·
RAID 0 is the fastest and most efficient array type but offers no faulttolerance. RAID 0 requires a minimum of two drives.
·
RAID 1 is the best choice for performance-critical, fault-tolerant environments. RAID 1 is the only choice for fault-tolerance if no more than two drives are used.
·
RAID 3 can be used to speed up data transfer and provide fault-tolerance in single-user environments that access long sequential records. However, RAID 3 does not allow overlapping of multiple I/O operations and requires synchronized-spindle drives to avoid performance degradation with short records. RAID 5 with a small stripe size offers similar performance.
·
RAID 5 combines efficient, fault-tolerant data storage with good performance characteristics. However, write performance and performance during drive failure is slower than with RAID 1. Rebuild operations also require more time than with RAID 1 because parity information is also reconstructed. At least three drives are required for RAID 5 arrays. RAID Levels
A-5
Appendix B Technical Specification RAID processor
Intel i80303 RISC 64-bit
RAID level
0, 1, 3, 5 and 0+1
Cache memory
Up to 512MB SDRAM
No. of channels (host+disk)
2+8
Host bus interface
Ultra 160 Wide LVD
Disk bus interface
ATA-100(ATA-133 applicable)
Host bus transfer
Up to 160MB / sec
On-line expansion
Yes
Hot swap disk bays
8
Hot swap power supply
300W * 2
Cooling fan
2 (blower)
New disk auto spare
Yes
DB 9 male type port
3 (Modem, monitor and UPS port)
Environment monitor
Yes
Host Independent
Yes
Audible alarm
Yes
GUI Management
Yes
Form Factor
19” 2U RackMount
Technical Specification
B-1
Appendix C Subsystem Environment Controller C.1 Smart Function Panel of the Environment Controller The environment controller accurately monitors the internal environment of the subsystem such as the power supplies, temperature, voltage and cooling fans. This ensures high performance and reliability of the subsystem. When an abnormal condition occurs, the appropriate LED will turn red and an alarm will sound. You will also see an error message appear in the LCD screen. Press the “Alarm Reset” button to stop the alarm. Press the ENC button to enter the environment menu. Alarm reset button Select button Info button
Over temp LED Fan fail LED
Quit button
Parts
Voltage LED
Power fail LED
Function
Quit button
Press this button to return to the previous menu.
Info button
Use this button to view the information on the LCD screen.
Select button °C & °F switch button
This is used to enter the option you have selected. Use this button to switch °C & °F temperature display. °F=32°+°C * (9 / 5)
Alarm reset button
Press this button to stop the alarm.
RAID Environment Controller
C-1
Parts Voltage LED
Over temp LED
Function If the output DC voltage is over or under +5V or +12V, an alarm will sound warning of voltage irregularity and this LED will turn red. (5V: over 5.5V / under 4.5V , 12V: over 13.8V / under 10.2V) If temperature abnormality in these systems occurs (HDD slot temperature over 55oC/113oF or under 0oC/32oF), this LED will turn red and an alarm will sound.
Fan fail LED
When a fan’s rotation speed is lower than 1000rpm, this LED will turn red and an alarm will sound.
Power fail LED
If the subsystem’s redundant power fails, this LED will turn red and an alarm will sound.
C.2 Environment Controller Menu
C-2
RAID Environment Controller
C.3 Monitoring the RAID Environment After configuring the subsystem, the screen on the LCD panel will show the following message.
ENC-2100
“ ” moving up and down at the lower right corner of the screen indicates that the subsystem is functioning normally. If it is not moving, there is a problem with the subsystem. 1.
Press the “ the “ display.
” button to enter the °C/°F exchange menu. You can press
” select button to select which thermometric scale you want to
°C / °F EXCHANGE NOW IS °C 2.
Press the “
” button again to monitor HDD status.
1 HDD S1 S2 S3 S4 O N F N The characters on the second line of the screen denote the status of the hard drives installed in subsystem. The first character refers to the first drive, the second character refers to the second drive and so on. “N” : No hard drive is installed in the slot. “O” : The hard drive is online or operational. “F” : The hard drive has failed. RAID Environment Controller
C-3
3.
Press the “
” button to monitor HDD temperatures.
1 C
S1 S2 S3 S4 30 31 31 32
Note: When an abnormal condition occurs (such as HDD temperature over ” Over temp LED will turn 55°C/131°F or under 0°C/32°F), the “ red and an alarm will sound. You will also see an error message appear on the LCD screen. Press the “
” Alarm Reset button to
stop the alarm. 4.
Press the “
” button to enter the power supply monitor .
1 PWR 1 2 3 4 5 6 O F N N N N
5.
Press the “
” button to enter the fan monitor.
1 FAN 1 2 3 4 5 6 O F N N N N
Note: When a fan’s rotation speed is lower than 1000rpm, the “ LED will turn red and an alarm will sound.
C-4
RAID Environment Controller
” fan fail
6.
Press the “
” button to enter the voltage monitor.
1 VOLT 5V OK
12V F
C.4 RAID Environment Controller Error Messages 1.
The internal temperature of the subsystem has overheated.
>> 1 TEMP : 1 << !!!! ALARM !!! 2.
The subsystem has detected a power failure.
>> 1 POWER : 1 << !!!! ALARM !!! 3.
The subsystem has detected a fan failure.
>> 1 FAN : 1 << !!!! ALARM !!! 3.
The subsystem has detected a voltage abnormality.
>> 1 VOLT : 12V << !!!! ALARM !!!
RAID Environment Controller
C-5
Appendix D RAID Messages D.1 RAID Error Messages Description
Error Messages FAIL Fan
The subsystem’s fan failed.
FAIL Power
The subsystem’s power 1 or power 2 supply failed.
HOST CHAN FAIL
The RAID controller’s host channel failed.
DISK CHAN FAIL
The RAID controller’s device channel failed.
D.2 RAID Warning Messages Warning Messages
Description
WARN Temp
The internal temperature of the subsystem has overheated.
WARN UPS
The subsystem has detected UPS power failure signal or output voltage is over or under +5V/+12V.
RAID Messages
D-1