EP-2126-SS
SCSI to SCSI
RAID Subsystem
User Manual
Revision 1.1
SCSI to SCSI RAID Subsystem
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User Manual
Preface
About this manual
This manual provides information regarding the quick installation and hardware
features of the EP-2126-SS RAID subsystem. This document also describes how to
use the storage management software. Information contained in the manual has
been reviewed for accuracy, but not for product warranty because of the various
environment/OS/settings. Information and specifications will be changed without
further notice.
This manual uses section numbering for every topics being discussed for easy and
convenient way of finding information in accordance with the user’s needs. The
following icons are being used for some details and information to be considered in
going through with this manual:
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 document is for information only and is subject to change without
notice.
IMPORTANT!
These are the important information that the user must
remember.
WARNING!
These are the warnings that the user must follow to avoid
unnecessary errors and bodily injury during hardware and
software operation of the subsystem.
CAUTION:
These are the cautions that user must be aware to prevent
damage to the equipment and its components.
NOTES:
These are notes that contain useful information and tips
that the user must give attention to in going through with
the subsystem operation.
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TABLE OF CONTENTS
Preface ........................................................................................................2
Before You Begin.........................................................................................6
Safety Guidelines ...............................................................................................................................................................6
Controller Configuration.................................................................................................................................................6
Packaging, Shipment and Delivery.............................................................................................................................6
Unpacking the Subsystem........................................................................................................................................7
Chapter 1 Product Introduction.................................................................8
1.1 Identifying Parts of the EP-2126-SS................................................................................................................9
1.1.1 Front View.........................................................................................................................................................9
1.1.2 Rear View...........................................................................................................................................................9
1.2 Enclosure Chassis................................................................................................................................................. 10
1.3 Technical Specifications.....................................................................................................................................11
1.3.1 RAID Features............................................................................................................................................... 11
1.3.2 Enclosure.........................................................................................................................................................11
1.3.3 Environmental............................................................................................................................................... 12
Chapter 2 Physical Components..............................................................13
2.1 Controller Module ...............................................................................................................................................13
2.1.1 Controller Module Panel.......................................................................................................................... 13
2.1.2 Controller Module Installation............................................................................................................... 15
2.1.3 Controller Board Replacement .............................................................................................................. 16
2.2 Power Supply / Fan Module ........................................................................................................................... 18
2.2.1 PSFM Panel....................................................................................................................................................18
2.2.2 Power Supply Module LED......................................................................................................................19
2.2.3 Fan of PSFM.................................................................................................................................................. 19
2.2.4 Power Supply Installation ........................................................................................................................ 20
2.2.5 Fan Replacement......................................................................................................................................... 21
2.3 Terminal Module..................................................................................................................................................23
2.3.1 Terminal Module Panel.............................................................................................................................23
2.3.2 Terminal Module Installation..................................................................................................................24
2.3.3 Terminal Module Board Replacement........................................................................................... 25
2.4 Drive Carrier Module.......................................................................................................................................... 26
2.4.1 Disk Drive Status Indicators.................................................................................................................... 26
2.4.2 Lock Indicator............................................................................................................................................... 27
2.4.3 Disk Drive Installation................................................................................................................................27
2.5 LCD Display Panel................................................................................................................................................ 29
2.5.1 LCD Display Panel LEDs............................................................................................................................29
2.5.2 LCD Front Panel Function Keys........................................................................................................ 30
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2.6 Rackmount Slide Rail Installation.................................................................................................................. 31
Chapter 3 Getting Started with the System.............................................35
3.1 Connecting the RAID Subsystem to the Host.................................................................................... 35
3.2 SCSI Termination.............................................................................................................................................36
Chapter 4 RAID Concepts........................................................................38
4.1 RAID Fundamentals.............................................................................................................................................38
4.2 SCSI Concepts .......................................................................................................................................................43
4.2.1 Multiple SCSI Format Support............................................................................................................... 43
4.2.2 Host SCSI ID Selection.............................................................................................................................. 43
4.2.3 Terminators.................................................................................................................................................... 43
4.3 Disk Drive Organization .................................................................................................................................... 44
4.3.1 Physical Drive Groups................................................................................................................................44
4.3.2 Logical Unit Number (LUNs) ..................................................................................................................44
4.3.3 Hot-Swap Drive Replacement................................................................................................................ 44
4.3.4 Disk Failure Detection ............................................................................................................................... 44
Chapter 5 Configuration Utility Options ..................................................45
5.1 Configuration through a Terminal................................................................................................................ 45
5.1.1 Upgrading Firmware through VT-100 Terminal Emulation....................................................... 50
5.2 Configuring the Subsystem Using the LCD Panel..................................................................................52
5.3 Configuration using the proRAID Manager GUI..................................................................................... 54
5.3.1 Login to proRAID Manager..................................................................................................................... 54
5.3.2 The ProRAID Manager Main Menu .....................................................................................................55
5.3.3 ProRAID Manager Menu Hierarchy..................................................................................................... 58
Chapter 6 RAID Management..................................................................59
6.1 Quick Setup............................................................................................................................................................ 59
6.2 Create Array ...........................................................................................................................................................62
6.3 Modify Array .......................................................................................................................................................... 65
6.4 Delete Array ........................................................................................................................................................... 66
6.5 Create Volume ...................................................................................................................................................... 67
6.6 Modify Volume .....................................................................................................................................................70
6.7 Delete Volume.......................................................................................................................................................71
Chapter 7 Network Management.............................................................72
7.1 Network Settings..................................................................................................................................................72
7.2 SNMP Setting ........................................................................................................................................................ 73
7.3 SMTP Setting ......................................................................................................................................................... 74
7.4 NTP Setting ............................................................................................................................................................ 75
7.5 Sync RTC.................................................................................................................................................................. 76
Chapter 8 System Management...............................................................77
8.1 System Setting ......................................................................................................................................................77
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8.2 Channel Manager.................................................................................................................................................79
8.3 Modify Password.................................................................................................................................................. 81
8.4 Upgrade Firmware...............................................................................................................................................82
8.5 Restart.......................................................................................................................................................................84
Chapter 9 Event Log ................................................................................85
9.1 Event Log.................................................................................................................................................................85
9.2 Export Log...............................................................................................................................................................86
Chapter 10 Information...........................................................................87
10.1 Disk Information ................................................................................................................................................87
10.2 RAID Information............................................................................................................................................... 88
10.3 System Information ..........................................................................................................................................89
10.4 Hardware Monitor............................................................................................................................................. 90
Chapter 11 Raid Task...............................................................................91
11.1 Raid Status ...........................................................................................................................................................91
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Before You Begin
Before going through with this manual, you should read and focus on the following
safety guidelines. Notes about the subsystem’s controller configuration and the
product packaging and delivery are also included.
Safety Guidelines
To provide reasonable protection against any harm on the part of the user and to
obtain maximum performance, user is advised to be aware of the following safety
guidelines particularly in handling hardware components:
Upon receiving of the product:
Place the product in its proper location.
To avoid unnecessary dropping out, make sure that somebody is around for
immediate assistance.
It should be handled with care to avoid dropping that may cause damage to the
product. Always use the correct lifting procedures.
Upon installing of the product:
Ambient temperature is very important for the installation site. It must not
exceed 30°C. Due to seasonal climate changes; regulate the installation site
temperature making it not to exceed the allowed ambient temperature.
Before plugging-in any power cords, cables and connectors, make sure that the
power switches are turned off. Disconnect first any power connection if the power
supply module is being removed from the enclosure.
Outlets must be accessible to the equipment.
All external connections should be made using shielded cables and as much as
possible should not be performed by bare hand. Using anti-static hand gloves is
recommended.
In installing each component, secure all the mounting screws and locks. Make
sure that all screws are fully tightened. Follow correctly all the listed procedures
in this manual for reliable performance.
Controller Configuration
This RAID subsystem supports single controller configuration.
Packaging, Shipment and Delivery
Before removing the subsystem from the shipping carton, you should visually
inspect the physical condition of the shipping carton.
Unpack and verify that the contents of the shipping carton are complete and in
good condition.
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
you purchased the subsystem for further instructions.
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Unpacking the Subsystem
The package contains the following items:
• RAID subsystem unit
• Two power cords
• One external serial cable
• One external UPS cable
• One RJ-45 Ethernet cable
• Two external SCSI cables
• Four Active terminators
• Installation Reference Guide
• Spare screws, etc.
If any of these items are missing or damaged, please contact your dealer or sales
representative for assistance.
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Chapter 1 Product Introduction
The EP-2126-SS RAID Subsystem
Features
Intel 80331 64 bit I/O processor
Supports RAID levels 0, 1, 0+1, 3, 5, 6, 30, 50, NRAID and JBOD
Dual SCSI Ultra320 host channels support clustering technology
Instant availability and background initialization
Supports hot spare and automatic hot rebuild
Local audible event notification alarm
Real time drive activity and status indicators
Java based browser type GUI management utility
Supports password protection and UPS connection
Built-in Ethernet port interface for remote event notification
Transparent data protection for all popular operating systems
Supports multiple array enclosures per host connection
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1.1 Identifying Parts of the EP-2126-SS
The illustrations below identify the various parts of the subsystem. Each part will be
discussed in details in the following sections of this manual.
1.1.1 Front View
The front section consists of the Drive Carriers and the Smart LCD Panel.
1.1.2 Rear View
The rear view consists of the two Power Supply / Fan Modules, the Controller and
the Terminal Module.
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1.2 Enclosure Chassis
The EP-2126-SS is a redundant system with hot swappable disks, cooling fans and
power supplies. The chassis assembly contains 12 drive bays at the front. These
drive carriers are arranged in 4 columns of 3 drives. Each drive carrier is lockable
and has a lock indicator.
At the rear, the chassis assembly contains two power supply / fan modules, one
controller module and one terminal module. The power supply and cooling system
is contained in one module for efficient cooling.
NOTE: The modules of the enclosure are interchangeable with
other Epica products.
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1.3 Technical Specifications
RAID Controller U320 SCSI-to-SCSI
Host Bus Interface Ultra 320 SCSI
Drive Bus Interface Ultra 320 SCSI
Data Transfer Rate Up to 320MB/Sec
Cache Memory 256MB ~ 2GB ECC DDR SDRAM
RAID Processor Intel 80331 64 bit RISC
Remote Management R-Link Port
Monitor Port RS232
1.3.1 RAID Features
RAID Level
0, 1, 0+1, 3, 5, 6, 30, 50,
Linear and JBOD
RAID Roaming Yes
Host Independent Yes
Continuous Rebuild Yes
Online Consistency
Check
Yes
Failed Drive Auto
Rebuild
Yes
Password Protection Yes
Bad Block Auto-
remapping
Yes
Hard Contact Relay
Connection
Yes
SMTP Manager and
SNMP Agent
Yes
1.3.2 Enclosure
Form Factor 2U 19-inch Rackmount Chassis
Number of Channels 2 + 2
Failed Drive Indicators Yes
Backplane Board Ultra 320 LVD (SCA-II)
Audible Alarm Yes
Hot-swap Drive Trays Twelve (12) 1-inch trays
Hot-swappable Power
Supplies
Two (2) 300W Power Supplies
with PFC
Cooling Fans 2
UPS Connection Yes
Environment Monitor
Monitor Temperature, Fan,
Power Supply and Voltage
Power Requirements
AC 90V~264V Full Range
6A ~ 3A, 47Hz ~ 63Hz
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1.3.3 Environmental
Relative Humidity 10% ~ 85% Non-condensing
Operating Temperature
10
◦
C ~ 40◦C (50◦F ~ 104◦F)
Weight 14 kg/30.8Lbs (without drives)
Physical Dimensions 88(H) x 482(W) x 550 (L) mm
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Chapter 2 Physical Components
2.1 Controller Module
The EP-2126-SS includes a U320 SCSI-to-SCSI Controller Module.
2.1.1 Controller Module Panel
The Controller Module has 6 major parts: Host Channel, UPS Port, RS-232 Port,
Ethernet Port, Alarm Mute Button, and a Hard Contact Relay. These parts are
described as follows:
1. Host Channel
The subsystem is equipped with 2 host channels (Host channel A and Host
channel B), with two 68-pin SCSI connectors at the rear of the subsystem, for
SCSI in and out.
2. 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.
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3. RS-232 Port
The subsystem is equipped with a serial monitor port allowing you to connect to
a PC or terminal.
Below are the RS-232 settings.
Settings
Baud Rate 115200
Data Bits 8
Parity None
Stop Bits 1
Flow Control None
4. R-Link Port : Remote Link through RJ-45 Ethernet for remote
management
The subsystem is equipped with one RJ-45 10/100 Ethernet port. You can use
Java-based browser to manage the RAID subsystem through Ethernet for
remote configuration and monitoring.
Link LED: Green LED indicates Ethernet is linking.
Access LED: The LED will blink orange when the 100Mbps Ethernet is being
accessed.
5. Alarm Mute Button
When the audible alarm is sounding, press this button to mute the audible
alarm.
6. Hard Contact Relay
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2.1.2 Controller Module Installation
In this section, you will be shown how to install the Controller Module.
a. Check for damage, especially to the connectors at the rear of the Controller
Module.
CAUTION! Handle the module with care and avoid damaging the
connectors. Do not install the module if the connectors are
damaged.
b. With the Controller handle in the open position, carefully insert the module into
the enclosure.
c. Manually close the handle to complete the Controller Module installation.
d. Tighten the thumb screws on the handle to secure the Controller Module to the
enclosure.
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2.1.3 Controller Board Replacement
NOTE: It is necessary to use ESD anti-static device when handling
sensitive parts of the controller module.
1. Loosen the thumb screws. Raise the controller handle and pull out the
controller module until it moves out of the slot.
2. Release the memory module lock and remove the memory module.
3. Remove four screws at the bottom of the controller module. Note that there
are four hex screws supporting the controller board to the module case.
4. Remove the eight (8) lock nut screws at the front panel.
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5. Remove the controller board from the module case.
6. Remove the four hex screws.
7. Replace the controller board.
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2.2 Power Supply / Fan Module
Every EP-2126-SS contains two 300W Power Supply / Fan Modules. All PSFMs
are inserted into the rear of the chassis.
Each PSFM delivers Full-Range (90 – 254V) AC voltage of electricity. The EP-2126SS normally operates with two PSFMs running. Note that each PSFM consists of 1
power supply, and 1 fan.
2.2.1 PSFM Panel
On the back of the Power Supply/Fan Module, there are three distinct features: the
Power On/Off Switch, the AC Inlet Plug, and a Power On/Fail Indicator showing the
Power Status LED, indicating ready or fail.
Each fan within a PSFM is powered independently of the power supply within the
same PSFM. So if the power supply of a PSFM fails, the fan associated with that
PSFM will continue to operate and cool the enclosure.
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2.2.2 Power Supply Module LED
When the power cord connected from main power source is inserted to the AC
Power Inlet, the power status LED becomes RED. When the switch of the PSFM is
turned on, the LED will turn GREEN. When the Power On/Fail LED is GREEN, the
PSFM is functioning normally.
2.2.3 Fan of PSFM
Each PSFM has 1 Master Fan.
The Master Fan is located beside the PSFM panel.
Master Fan
NOTE: In the LCD display, Master Fan of Power Supply Unit A is shown as
“MF/PSU-A. Master Fan of Power Supply Unit B is “MF/PSU-B”.
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2.2.4 Power Supply Installation
In this section, you will be shown how to install the Power Supply.
a. Check for damage, especially to the PCB Golden Fingers at the rear of the
Power Supply.
CAUTION! Handle the module with care and avoid damaging
the Golden Fingers. In addition, make sure there are no
fingerprints on the Golden Fingers. Do not install the module
if the Golden Fingers are damaged.
b. With the Power Supply handle in the open position, carefully insert the module
into the enclosure.
c. Manually close the Power Supply handle.
IMPORTANT! To secure the Power Supply to the
enclosure, tighten the thumb screws.
d. Connect the Power Supply cord from the power source to the AC Power Inlet.
IMPORTANT! For safety reasons, make sure the power
switches are turned off when you plug-in the power
cords. When removing the power cords, ensure that the
switch on the back of each power supply fan module are
turned off and the power on/fail LED are red.
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2.2.5 Fan Replacement
1. Remove the Power Supply Fan Module from the enclosure.
2. Unscrew 6 screws; 2 from left side, 2 from right side and 2 from top cover.
3. Pull up the top cover.
4. Disconnect the fan cable.
Right Side Screws
Left Side Screws
Top Cover Screws
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5. Unscrew the 4 screws of the power supply fan. Then remove the metal brace.
6. Remove the fan and replace.
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2.3 Terminal Module
Terminators must be attached to both Disk Channel ports of the Terminal Module in
order for the SCSI disk drives to work properly.
2.3.1 Terminal Module Panel
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2.3.2 Terminal Module Installation
In this section, you will be shown how to install the Terminal Module.
a. Check for damage, especially to the connectors at the rear of the Terminal
Module.
CAUTION: Handle the module with care and avoid damaging the
connectors. Do not install the module if the connectors are
damaged.
b. Carefully insert the Terminal Module into the appropriate slot.
NOTE: The Thumbscrew is mainly used as a handle to remove the
Terminal Module from the enclosure.
c. Use a screwdriver to tighten the 2 screws on either side of the Terminal Module
to secure the module to the enclosure.
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2.3.3 Terminal Module Board Replacement
1. Remove the Terminal Module from the enclosure.
2. Remove the four (4) lock nut screws.
3. Remove the six (6) hex screws from the terminal board.
4. Carefully remove the terminal board and pull away from the case.
5. Replace the terminal board.
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2.4 Drive Carrier Module
The Drive Carrier Module houses a 3.5 inch hard disk drive. It is designed for
maximum airflow and incorporates a carrier locking mechanism to prevent
unauthorized access to the HDD.
2.4.1 Disk Drive Status Indicators
Every Drive Carrier has 2 status indicator lights. One indicator light is used for
Power On/Error. When this light is GREEN the power is on and everything is
functioning normally. When the Power On/Error light is ORANGE, then an error has
occur that requires the user’s attention.
The other status indicator light is the hard disk drive access light. When the hard
disk drive is being accessed, this light will flash BLUE.
In addition, both indicator lights are viewable within a 170° arc.
Disk Status
Indicator
Disk
Activity
Indicator
Status Light
Indicator
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2.4.2 Lock Indicator
Every Drive Carrier is lockable and is fitted with a lock indicator to indicate whether
or not the carrier is locked into the chassis or not. Each carrier is also fitted with an
ergonomic handle for easy carrier removal.
When the Lock Groove is vertical, then the Drive Carrier is unlocked.
When the Lock Groove is horizontal, this indicates that the Drive Carrier is locked.
2.4.3 Disk Drive Installation
This section describes the physical locations of the hard drives supported by the
subsystem and give instructions on installing a hard drive. The subsystem supports
hot-swapping allowing you to install or replace a hard drive while the subsystem is
running.
a. Make sure the Lock Groove is in unlocked position. Press the button and the
Drive Carrier handle will flip open.
b. Pull out an empty disk tray. Pull the handle outwards to remove the carrier from
the enclosure.
Drive
Carrier is
locked
Drive Carrier
is Unlocked
Carrier
Open
Button
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c. Place the hard drive in the disk tray. Make sure the holes of the disk tray align
with the holes of the hard drive.
d. Install the mounting screws on the bottom part to secure the drive in the disk
tray.
e. Slide the tray into a slot until it reaches a full stop.
f. Press the lever in until you hear the latch click into place. The HDD status LED
will turn green if subsystem is on.
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2.5 LCD Display Panel
2.5.1 LCD Display Panel LEDs
Environmental Status
Parts Function
Power LED Green indicates power is ON.
Power Fail LED
If one of the redundant power supply unit
fail, this LED will turn to RED and alarm will
sound.
Fan Fail LED
Turns RED when a fan’s speed is lower than
2000 RPM or fan fails.
Over Temperature LED
If system temperature is over 70
o
C or disk
temperatures exceed 55
o
C the temperature
LED will turn RED and alarm will sound.
Voltage Warning LED
An alarm will sounds if detect voltage in the
controller is abnormal and voltage LED will
turn RED
Access LED
This LED will blink blue when the RAID
controller is busy / active.
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2.5.2 LCD Front Panel Function Keys
Parts Functions
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
EXIT
Press this button to return to the previous
menu.
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2.6 Rackmount Slide Rail Installation
An optional Rail box can be purchased and included in the package. Verify if the
content of the Rail Box is complete.
2 x Rack Rails
2 x Inner Brackets
4 x M5*P0.8 L=25mm
Long Screws
8 x M5*0.8 L=8.0mm
Round Head Screws
12 x M4*0.7
L=6.0mm Flat Head
Screws
NOTE: To lighten the weight of the RAID system, remove the disk
trays with disk drives from the chassis.
1. Remove one screw (lower part) from the RAID system ear.
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2. Place one inner bracket to the side of the chassis. Align the holes on the front
side of the inner rail to the holes on the RAID system ear. Tighten the screw
that was removed in Step1.
3. Use four M4 flat head screws to attach the inner bracket to one of the side.
Make sure the holes of the inner bracket are aligned to the holes on the side of
the RAID system.
4. Repeat Steps 1 to 3 for the other inner bracket on the left side.
5. Loosen eight M4 screws on each of the rack rails. Make the necessary
adjustment on the length of the rack rails to conform to the depth of the rack.
Then screw the M4 screws back to the rack rails.
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6. Place the right side rack rail on the rack cabinet. Use four M5 round head
screws to fix the rack rail to the rack post (Front Right and Rear Right).
NOTE: In the Front Right part of the rack rail, the M5 screws
must be placed in holes 1 and 3. In the Rear Right part, the M5
screws must be placed in holes 1 and 4.
7. Repeat Step 6 to fix the left side rack rail to the rack post (Front Left and Rear
Left). Take note of the positioning of the M5 screws in the holes.
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8. Carefully insert the RAID system into the cabinet. Make sure the inner brackets
align with the center opening of the rack rails.
Front View
Rear View
9. Use two M5 long screws to fix the RAID system in the cabinet.
10. Insert the disk trays with disk drives, if they were removed prior to installation.
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Chapter 3 Getting Started with the System
3.1 Connecting the RAID Subsystem to the Host
This section describes how to connect the EP-2126-SS to your host system.
The subsystem supports Ultra 320 SCSI LVD interface which provides fast 320MB/s
data transfer rates using a 16-bit SCSI bus. Installation of the disk array is very
similar to the installation of a standard SCSI drive. The SCSI connector accepts the
standard 68-pin LVD SCSI connector used on most LVD SCSI devices. Refer to your
system and/or SCSI host adapter manual for additional installation procedures that
may apply to your system or host adapter.
1. Connect the power cables to the AC Power Inlets.
2. Connect the Ethernet cable to the controller’s Ethernet port.
3. Connect the external serial cable to the controller’s RS-232 Port (phone jack
type).
4. Connect the other end of the external serial cable to the RS-232 Port (DB9 type)
on your host subsystem.
5. Connect two SCSI terminators to the Terminal Module SCSI ports.
6. 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 (Host Channel A In) and the
other end to the host adapter’s external SCSI connector. (The host adapter is
installed in your Host subsystem.)
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7. Attach a SCSI terminator to the other SCSI Host Channel connector (Host
Channel A Out port). Make sure to tighten the lock screws of the SCSI
terminator.
8. If you want to configure subsystem into multi-host attachment, connect another
host system using the other external SCSI cable to the other SCSI Host Channel
(B).
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.
IMPORTANT: For safety reasons, make sure the Disk Array and
Host Computer are turned off when you plug-in the SCSI cable.
3.2 SCSI Termination
Two 68-pin wide SCSI connectors are provided on the back of the enclosure. These
connectors are used in one of two ways:
If the RAID subsystem is the only external SCSI device, or is the last external
device in a daisy-chained configuration, connect the incoming SCSI cable (the
one which is attached to the SCSI adapter) to the Host Channel A & B In
connector and install the external SCSI terminator on the Host Channel A & B
Out connector.
If the RAID subsystem is to be placed in the middle of a daisy-chained
configuration, connect the incoming SCSI cable (the one which is attached to
the SCSI adapter) to the Host Channel A & B In connector and connect the
outgoing cable (the one which continues on to other devices) to the Host
Channel A & B Out connector. In this case, no terminator is required in the
RAID subsystem but the last device in the daisy chain must have a terminator.
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Correct SCSI termination procedures require that the last device on the SCSI bus
be terminated. If the last device is not terminated or if devices other than the last
are terminated, erratic SCSI bus performance may occur. Typically, the system or
host adapter (SCSI card inside the host computer) is the first device and is already
terminated. When installing the RAID subsystem on a SCSI bus with other devices,
be sure to observe the above rules with all devices on the SCSI bus. Consult your
system and/or host adapter manual for additional information on correct
termination procedure.
Note: A daisy chain is an interconnection of several enclosures,
one after another. The main advantage of the daisy chain is its
simplicity. Another advantage is scalability. The user can add more
enclosures anywhere along the chain.
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Chapter 4 RAID Concepts
4.1 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.
Five types of array architectures, RAID 1 through RAID 6, 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 arrays.
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.
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.
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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.
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.
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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.
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.
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RAID 6 is similar to RAID 5 in that data protection is achieved by writing parity
information to the physical drives in the array. With RAID 6, however, two sets of parity
data are used. These two sets are different, and each set occupies a capacity equivalent
to that of one of the constituent drives. The main advantage of RAID 6 is High data
availability – any two drives can fail without loss of critical data.
In summary:
RAID 0 is the fastest and most efficient array type but offers no fault-tolerance. 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 6 is essentially an extension of RAID level 5 which allows for additional fault
tolerance by using a second independent distributed parity scheme (two-dimensional
parity). Data is striped on a block level across a set of drives, just like in RAID 5, and
a second set of parity is calculated and written across all the drives; RAID 6 provides
for an extremely high data fault tolerance and can sustain multiple simultaneous
drive failures. It is a perfect solution for mission critical applications.
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RAID Management
The subsystem can implement several different levels of RAID technology. RAID levels
supported by the subsystem are shown below.
RAID
Level
Description
Min
Drives
Linear
Linear is similar to RAID 0 in that it combines the
capacity of all member drives. The data is written
linearly starting with the first disk drive. When first disk
drive becomes full, the next disk drive is used. There is
no data redundancy.
1
0
Block striping is provide, which yields higher
performance than with individual drives. There is no
redundancy.
2
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
6
Data is striped across several physical drives. Parity
protection is used for data redundancy. Requires N+2
drives to implement because of two-dimensional parity
scheme
4
0 + 1
Combination of RAID levels 0 and 1. This level provides
striping and redundancy through mirroring.
4
30
Combination of RAID levels 0 and 3. This level is best
implemented on two RAID 3 disk arrays with data
striped across both disk arrays.
6
50
RAID 50 provides the features of both RAID 0 and RAID
5. RAID 50 includes both parity and disk striping across
multiple drives. RAID 50 is best implemented on two
RAID 5 disk arrays with data striped across both disk
arrays.
6
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4.2 SCSI Concepts
Before configuring the subsystem, you must first understand some basic SCSI concepts
so that the subsystem and SCSI devices will function properly.
4.2.1 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.
SCSI Type Data Bit Data Rate
Cable
Length
SCSI-1 8 Bits 5 MB/Sec 6 m
Fast SCSI 8 Bits 10 MB/Sec 3 m
Fast Wide SCSI 16 Bits 20 MB/Sec 3 m
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
Ultra 320 LVD 16 Bits 320MB/Sec 12 m
4.2.2 Host SCSI ID Selection
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 320 LVD SCSI =
0 to 15). The ID defines each SCSI device on the SCSI bus. If there are more than one
SCSI adapters in the Host system, 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. The subsystem must be assigned a unique SCSI ID ranging from 0 to 15 for
the Ultra 320 LVD SCSI host system. The default value is ID 0.
4.2.3 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.
NOTE: If your RAID subsystem is the last device on the SCSI bus,
attach the terminator included in the package to the Host Channel
A Out port and/or B Out port before using the subsystem.
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4.3 Disk Drive Organization
The subsystem arranges the SCSI drives connected to it as a physical drive group and
logical unit (LUN).
4.3.1 Physical Drive Groups
The subsystem has up to a maximum of twelve (12) 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 disks) = Capacity for RAID 0
(Smallest disk size) x [(Number of disks) / 2] = Capacity for RAID 1
(Smallest disk size) x [(Number of disks) - 1] = Capacity for RAID 3 or 5
(Smallest disk size) x [(Number of disks) - 2] = Capacity for RAID 6
{(Smallest disk size) x [(Number of disks in each sub-array) - 1)]} x (Number of subarrays) = Capacity for RAID 30 or 50
4.3.2 Logical Unit Number (LUNs)
A logical unit is a Volume assigned a LUN ID and mapped to a host channel. It appears
to the host system as a logical device. Up to 32 Volumes can be mapped as LUNs in each
host channel (LUN ID 0 to 31 for Host A and for Host B).
4.3.3 Hot-Swap Drive Replacement
The subsystem supports hot-swapping of drives while the system is powered on. A disk
may be disconnected, removed or replaced with a different disk without turning off the
system.
4.3.4 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.
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Chapter 5 Configuration Utility Options
The subsystem has a built-in setup configuration utility 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.
Configuration Methods
There are three methods of configuring the subsystem:
• VT100 terminal connected through the controller’s serial port
• Front panel touch-control keypad
• Web browser-based proRAID Manager GUI
IMPORTANT: Only one method can be used to configure the
subsystem. Two methods can be used at the same time but the
other method will be in read-only mode.
5.1 Configuration through a Terminal
To start-up:
1. Connect a VT100 compatible terminal or a PC operating in an equivalent terminal
emulation mode to the monitor port located at the rear of the subsystem.
NOTE: You may connect a terminal while the subsystem’s power is
on.
2. Power-on the terminal.
3. Run the VT100 program or an equivalent terminal program.
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4. The default setting of the monitor port is 115200 baud rate, 8 data bit, non-parity, 1
stop bit and no flow control.
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5. After connecting and powering on the terminal. Press “l” key to enter password
screen. The preset password is 8 zeroes. Type “00000000”.
6. Then press <Enter> to enter screen. The Main Menu will appear.
Keyboard Function Key Definitions
“ Enter ” key : to confirm a selected item
“ <Ctrl>+Q ” key : to exit a selection or Logout
“ ” Arrow keys : to move in / among fields or Traverse Menu
“ Tab ” key : to move to the next default value
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VT100 terminal configuration Utility Main Menu Options
Select an option and the related information or submenu items display beneath it. The
submenus for each item are explained as below.
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The configuration utility main menu options are:
Menu Option Description
Quick Setup Quickly create a single Array and Volume
RAID Management
Create single or multiple Arrays and Volumes with
custom parameters.
SCSI Configuration
Set SCSI parameters such as SCSI ID, speed and
Tag Queue.
System Management
Set System parameters such as Ethernet, Time,
password, Upgrade Firmware and Event Logs
Disk Management
Set disk utility such as view disk status and set
faulty.
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5.1.1 Upgrading Firmware through VT-100 Terminal Emulation
The RAID controller’s firmware can be upgraded through a terminal.
To upgrade the firmware, follow these steps:
1. Shut down the host computer system, if a host computer is connected.
2. Start a terminal connection to the disk array and access the Menu area.
3. From the Main Menu, scroll down to “System Management”
4. Choose the “Upgrade Firmware”. The Upgrade the Raid Firmware dialog box
appears.
5. Press Enter to confirm. Go to the menu tool bar and select Transfer. Open Send
File.
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6. Click Browse. Locate where the Firmware file has been saved, select the file and
click Open.
7. Select “Ymodem” under Protocol. YMODEM is the file transfer protocol used by the
terminal emulation software.
8. Click “Send” to send the Firmware file to the RAID controller.
9. When Firmware download is completed, the subsystem will restart. Need to login
again to terminal after restart.
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5.2 Configuring the Subsystem Using the LCD Panel
All configurations can be performed through the LCD Display front panel function keys,
except for the “Firmware update”. The LCD provides a system of screens with areas for
information, status indication, or menus. The LCD screen displays menu items or other
information up to two lines at a time. The RAID subsystem password is set to 00000000
by manufacture default.
Function Key Definitions
Parts Function
Exit button
Press this button to return to the previous menu.
Select button
This is used to enter the option you have selected.
Up and Down
arrow buttons
Use the Up or Down arrow keys to move between
each menu when you configure the subsystem.
The following tree diagram is a summary of the various configurations and setting
functions that can be accessed through the LCD panel menus. Press the Select button
and enter the password to access the menu functions.
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To view system information, hardware monitor information, array information, and other
related information, press the Down Arrow button.
Model-Name
RAID READY
IOP-80331 FW1.30
RAM:256MB HD#12
Temperature
System:40 C
S 1:34C S 2:31C
S 3:33C S 4:32C
S 5:33C S 6:29C
S 7:29C S 8:31C
S 9:32C S106:31C
S11:32C S12:31C
MF/PSU-A: 3214rpm
MF/PSU-B: 3213rpm
Array1 A: 899G Fr:399G
IN USE ARRAY > Level: RAID 5
Stripe Size:128K
Block Size:512 byte
Member disks:
1234
Vol1
Size: 499.9 GB
Disk Info
Disks: 12 > (shows hard disk info, such as model, capacity)
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5.3 Configuration using the proRAID Manager GUI
The RAID subsystem can be managed through the controller’s Ethernet connection.
Any PC on the network to which the RAID subsystem is connected can manage the
subsystem using proRAID Manager. proRAID Manager is web browser-based
Graphical User Interface (GUI) that is supported on many OS platforms.
This chapter describes the steps that you need to take to get ProRAID Manager up
and how to use it on your system.
NOTE: Flash Player 10 or later version must be installed in the PC
which will be used to manage the RAID subsystem.
5.3.1 Login to proRAID Manager
Open a web browser and enter http://xxx.xxx.xxx.xxx, where xxx.xxx.xxx.xxx is the IP
address of the RAID subsystem. The Login screen will be displayed.
Enter the subsystem name (you can use any name to identify the subsystem you are
going to manage) and the password.
NOTE: The default IP address of the RAID system is 172.16.0.1.
The IP address can be verified from LCD panel; select System
Config and then Ethernet Config. The default subsystem password
is 00000000.
NOTE: The session timeout limit is 10 minutes. When the GUI is
not used within 10 minutes, user will be logged out automatically.
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5.3.2 The ProRAID Manager Main Menu
After login, the Main Screen will be displayed. There are several menu items shown on
the upper part of the screen. The menu items are grouped according to their
functionality.
Each menu item can have several sub-menu items. Click the icon of the menu item and
the sub-menu will be displayed.
The right pane shows the list of subsystems that you have logged in to. You can login to
several subsystems at a time using a single proRAID Manager GUI.
On the left side of the screen is an icon
to show or hide the proRAID Manager
Menu Tree. The menu tree is a list form of the menu options available on the upper part
of the screen. It provides a quicker way to access the submenu items.
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Mount or Detach RAID Subsystem
To login to another RAID Subsystem, click the Mount button and enter the Subsystem
Name (you can use any name to identify the subsystem you are going to manage), the
IP Address, and the subsystem Password. The subsystem name will appear in the list
of subsystem on the right screen.
To logout from a subsystem, select the subsystem name and click Detach. In the
confirmation screen, select OK to proceed with logout.
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5.3.3 ProRAID Manager Menu Hierarchy
Below is the summary of the menu and functions available in proRAID Manager
GUI.
Quick Setup
Create Array
Modify Array
Delete Array
Create Volume
Modify Volume
RAID
Delete Volume
Network Setting
SNMP Setting
SMTP Setting
NTP Setting
Network
Sync RTC
System Setting
Channel Manager
Modify Password
Upgrade Firmware
System
Restart
Event Log
Event Log
Export Log
Disk Info
RAID
System Info
Information
Hardware Monitor
Raid Task
Raid Status
S.M.A.R.T
***
*** NOTE: SMART feature is disabled in this model since SCSI disk
drives do not support SMART function.
Message displayed when S.M.A.R.T. option is selected.
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Chapter 6 RAID Management
This chapter describes the available RAID Management tasks; these tasks may be
selected using the RAID menu icon in the upper part of the screen or in the left side
menu of the ProRAID Manager screen. There are seven functions: Quick Setup, Create
Array, Modify Array, Delete Array, Create Volume, Modify Volume, and Delete Volume.
NOTE: Any FREE or un-used hard disk will automatically become
Global Hot Spare disk, which means it can repl ace any failed disk
in any Array, as long as the capacity is the same or greater than
the capacity of the smallest disk size in the Array.
6.1 Quick Setup
The Quick Setup function provides an easy way for users to quickly configure a single
Array and Volume.
Here are the steps:
1. In Raid menu, click “Quick Setup”.
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2. Enter Array Name, Volume Name, select the disk drives to be included in
the Array, and select RAID Level, Stripe Size, and Block Size. Click
“Submit” when done.
Option Description
Array Name
The name of the array you want to assign to the
Array. It should not exceed 20 characters.
Volume Name
The name of the volume you wan to assign to the
Volume. After mapping the Volume as LUN, it will
appear as a disk device to the host.
RAID Level
Select the RAID Level you want the Array to use.
The RAID level option will depend on the number of
disk drives selected.
Stripe Size
This parameter sets the size of the stripe written to
each disk. You can set the stripe size to 8k, 16k,
32k, 64k, 128k, 256k or 512k.
Block Size
Use this option to enable creating Volume over
2TB.
For Windows OS, such as Windows 2000, 2003:
Use 1KB, 2KB or 4KB.
For 64bit LBA mode, such as Windows 2003+SP1
or later versions, Linux 2.6 or later versions:
Use 512 bytes. Due to LSI chip limitation,
16 Byte CDB option must run at U320 mode.
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3. The Array and Volume will be created.
NOTE: Quick Setup can only be used if there’s no existing Array.
NOTE: In Quick Setup, the Array will be created in background
initialization mode, which means the Volume will be available
immediately while initializing in the background.
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6.2 Create Array
NOTE: The RAID subsystem supports up to 16 Arrays.
To create a new Array:
1. In RAID menu, click “Create Array”.
2. Enter the Array Name, change the Re-Mapped BS count as necessary, select
the disks drives to be included in the Array, and set the RAID Level, Stripe
Size, Block Size, and Task Priority. Other options, such as Background Init
mode and Ignore Bad Sectors, can also be set. Click “Submit” when done.
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Option Description
Array Name
The name of the array you want to assign to the
Array. Maximum is 20 characters.
Capacity
The total capacity of the Array in GB.
Re-Mapped BS count
Set the maximum number of bad sector count to be
remapped. Default is 1000. Maximum number of
bad sector is 10,000.
RAID Level
Select the RAID Level you want the Array to use.
The RAID level option will depend on the number of
disk drives selected.
Stripe Size
This parameter sets the size of the stripe written to
each disk. You can set the stripe size to 8k, 16k,
32k, 64k, 128k, 256k or 512k.
Block Size
Use this option to enable creating Volume over
2TB.
For Windows OS, such as Windows 2000, 2003:
Use 1KB, 2KB or 4KB.
For 64bit LBA mode, such as Windows 2003+SP1
or later versions, Linux 2.6 or later versions:
Use 512 bytes. Due to LSI chip limitation,
16 Byte CDB option must run at U320 mode.
Task Priority
The priority for background tasks, such as
rebuilding. Options are: LOW, MEDIUM, and HIGH.
LOW priority means less system resources are
allotted to background task, and access to Array
and Volume is faster. In HIGH priority, more
system resources are used for background task,
and access to Array and Volume is slower.
Background Init
The default Array Initialization mode is Foreground
Init mode (the Background Init option is
unchecked) and Volume(s) can only be added to
the Array after initialization is completed. When
Background Init mode is used, the Array will be
accessible during initialization and Volume(s) can
be created immediately. Note that accessing the
Array during background initialization can have
performance impact.
Ignore Bad Sectors
Use this option to Ignore Bad Sectors. This option is
used when rescuing Array. It is recommended that
you disable this option in normal situation.
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3. The Array will be initialized.
4. The next step is to create a Volume. When Array has completed its
initialization in Foreground mode, or still initializing in Background mode, a
Volume can created.
NOTE: Any FREE or un-used hard disk will automatically become
Global Hot Spare disk, which means it can repl ace any failed disk
in any Array, as long as the capacity is the same or greater than
the capacity of the smallest disk size in the Array.
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6.3 Modify Array
Use this function to modify settings of an existing Array
To modify Array:
i. In RAID menu, click “Modify Array”. Change the settings of the Array as
necessary.
NOTE: Some settings are read-only and cannot be modified.
ii. Click “Submit” when done. The modified Array will be saved.
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6.4 Delete Array
1. To delete an Array, select “Delete Array” from RAID menu.
2. Select the Array to be deleted from the list of Arrays displayed on the left side.
3. Click “Submit” when done. A warning message will be displayed. Click “OK” to
proceed with deletion.
IMPORTANT: Make sure that the data in the Array to be deleted is
no longer needed before deleting an Array.
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6.5 Create Volume
A Volume is seen by the host system as a single logical device. Multiple Volumes can be
created in an Array as long as there is free capacity in the Array. Up to 32 Volumes can
be mapped to a LUN in each Host Channel (LUN ID 0 to 31 for Host A and for Host B).
1. To create a Volume, select “Create Volume” from RAID menu.
2. From the list of Array in the left column, select the Array where the Volume will
be created.
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3. Enter the Volume Name, the Volume Size, and change the Read Ahead option if
necessary. Map the Volume to a LUN by enabling the Activate option and
selecting the LUN ID in the Host Channel.
Option Description
Volume Name
The name you want to assign to the Volume.
Maximum is 20 characters.
Volume Size
The capacity you want to give to the Volume; value
is in GB. Note that the available capacity that can be
used in displayed in Maximum Capacity field.
Read Ahead
The Maximum number of Read Ahead is 99. The
controller will read ahead to optimize performance
on sequential reads.
Activate
Enable this option to activate the Volume in the
selected Host Channel (A and/or B).
Host A, Host B - LUN #
The LUN ID in the Host Channel assigned to the
Volume. Each Host Channel has 32 LUN IDs.
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4. Click “Submit” when done. The Volume will be created.
IMPORTANT: Once a LUN number is already assigned to a Volume,
it cannot be used again.
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6.6 Modify Volume
The Volume attributes can be modified using the “Modify Volume” function in RAID menu.
To modify a Volume:
1. Select “Modify Volume” from RAID menu. Select the Array name from the Array
List, and then select the Volume to be modified.
2. Change the settings as necessary. Note that some settings cannot be modified.
3. Click “Submit” when done. The modified Volume settings is saved.
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6.7 Delete Volume
To delete a Volume:
1. Select “Delete Volume” from RAID menu. From the Array List, select the Array
name which contains the Volume to be deleted. Then select the Volume to be
deleted.
2. Click “Submit”. A warning message will be displayed. Click “OK” to proceed.
3. The Volume will be deleted.
IMPORTANT: Make sure that the data in the Volume to be deleted
is no longer needed before deleting the Volume.
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Chapter 7 Network Management
7.1 Network Settings
To setup the R-Link Ethernet port:
1. Select “Network Settings” from Network menu.
2. Set the following options:
Option Description
IP Address
Enter the IP address you want to assign to the RAID
subsystem.
Gateway
Enter the Gateway IP Address you want to use.
Subnet Mask
Enter the Subnet Mask value.
MAC Address
This shows the MAC Address of the network interface.
3. Click “Submit” to save the settings.
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7.2 SNMP Setting
The SNMP gives users independence from the proprietary network management schemes
of some manufacturers. SNMP is supported by many WAN and LAN manufacturers
enabling true LAN/ WAN management integration.
To set the SNMP function:
1. Select “SNMP Setting” from Network menu.
2. Tick the “Enable SNMP Notification” option. Then setup the necessary options.
Option Description
Description
Enter a description.
Contact
Enter the Contact information.
Name
Enter the Name information.
Location
Enter the Location information.
GetCommunity
Enter or change the GetCommunity value if needed.
SetCommunity
Enter of change the SetCommunity value if needed.
Trap ID 1
Enter the first Trap receiver IP address.
Trap ID 2
Enter the second Trap receiver IP address.
Trap ID 3
Enter the third Trap receiver IP address.
3. Click “Submit” to save the settings.
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7.3 SMTP Setting
To set the Mail Notification function:
1. Select “SMTP Setting” from Network menu.
2. Tick the “Enable Mail Notification” option. Then setup the necessary options.
Option Description
SMTP Server
Enter the SMTP Server IP address.
Use Secure
Authentication
To use secure authentication in SMTP server, enable this
option.
Account
Enter the account information.
Password
Enter the password for the account.
Sender
Enter the sender’s email address.
Receiver
Enter the receiver’s email address.
3. Click “Submit” to save the settings.
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7.4 NTP Setting
NTP (Network Time Protocol) is an Internet standard protocol used to synchronize the
clocks of computers to some time reference.
By default, “Use Local Time Setting” is selected. This means the RAID subsystem will get
time information from local computer. Whenever the RAID subsystem is started or
restarted, you need to use “Sync RTC”. RTC Stands for Real Time Clock and is used to
set the time on the RAID controller. Setting the correct time plays an important role in
the system administration which helps administrators keep accurate record of when the
events actually occur.
To set the NTP function:
1. Select “NTP Setting” from Network menu.
2. Select the “Sync with a NTP Server” option. Then setup the necessary options.
Option Description
Time Zone
Select the local time zone.
NTP Server Enter the NTP Server IP Address.
3. Click “Submit” to save the settings.
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7.5 Sync RTC
When time setting is not configured to get time from an NTP server (“Use Local Time
Setting” option is selected in NTP Setting), the “Sync RTC” function must be used
whenever the RAID subsystem is started or restarted.
RTC Stands for Real Time Clock and is used to set the time on the RAID controller.
Setting the correct time plays an important role in the system administration which helps
administrators keep accurate record of when the event actually occurs.
To Sync RTC, select “Sync RTC” from Network menu and click “Submit".
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Chapter 8 System Management
8.1 System Setting
Some RAID subsystem System settings can be configured to the user’s preference to
match certain application.
The following can be set using “System Setting” function in System menu:
Alarm Beeper:
The Alarm Beeper function item is used to Disable or Enable the RAID subsystem
alarm tone generator. When Alarm Beeper option is checked, the alarm beeper is
enabled.
Cache Type:
The RAID subsystem supports Write Through and Write Back cache type. Write
Back allows temporary saving of data in the volatile cache memory and data are
acknowledged to have been received once it reaches the cache memory. Write
Through allows saving the data in the disk drives and data confirmation is
acknowledged once the data are written to the disk drives.
Cache Ratio:
Select 10% to 90% or adaptive.
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Notification Level:
Events are classified to 5 levels (Critical, Error, Warning, Notice, Info).
Event Log Level
Slot inserted Notice
Slot removed Notice
Temperature back to normal Notice
Voltage back to normal Notice
PSU back to normal Notice
Fan back to normal Notice
UPS not present Notice
UPS standby Notice
Array deleted Notice
Array created Notice
Array modified Notice
Array initialization completed Notice
Array rebuild completed Notice
Array expansion completed Notice
Array parity checking completed Notice
Disk clone succeeded Notice
Volume created Notice
Volume deleted Notice
Volume modified Notice
Over temperature Warning
Over voltage Warning
Low voltage Warning
PSU not present Warning
Fan not present Warning
Fail to setup network configuration Warning
Array initialization failed Warning
Array rebuild failed Warning
Array expansion failed Warning
Array parity checking failed Warning
Disk clone failed Warning
Mirror disk clone failed Warning
System restart Warning
Parity error detected Warning
Power Supply Unit(PSU) Fail Error
Fan fail Error
UPS on battery Error
Bad sector reallocation Info
Baud Rate:
Set the baud rate: 19200, 38400, 57600 or 115200 (Default: 115200)
To save the change in each setting, click the “Submit" button.
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8.2 Channel Manager
The Channel Manager can be used to configure the SCSI Host Channels A and B options
to the preferred settings. Select
“Channel Manager” function in System menu.
For each Host Channel, the SCSI ID, Wide, Speed Setting, Current Speed, and Tag
Queue can be set.
Option Description
SCSI ID
Select 0 to 15 or Multiple ID. The RAID subsystem is like a
large SCSI device. A SCSI ID should be assigned and
selected from the list of SCSI IDs. If Multiple ID is selected,
you can map ID to a host channel.
Wide
If enabled for a wide bus, the throughput is double transfer
rate, because each transfer is of 16 bits or two bytes. For
example, if Wide option is enabled, the Speed Setting can
have maximum transfer speed of 320MB/sec.
Speed Setting
Select the preferred Speed setting. The options are 80
MB/sec, 160 MB/sec, and 320 MB/sec for Wide mode. 40
MB/sec is available when Wide is disabled.
Current Speed This shows the current speed for the host channel.
Tag Queue
When this option is enabled, it enhances the overall system
performance under multi-tasking operating systems by
reordering tasks or requests in the command queue of the
RAID system. This function should normally remain enabled.
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After setting the preferred option, click “Update” to save the changes.
To see the current settings, click “Refresh”.
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8.3 Modify Password
To set or change the login password of RAID subsystem, click “Modify Password” function
in System menu. Enter the old password in the Old Password field, and the new
password in the New Password and Confirm New Password fields.
Click “Submit” to save the change.
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8.4 Upgrade Firmware
The RAID controller’s firmware can be upgraded when new firmware version is available.
Select “Upgrade Firmware” function in System menu then click “Upload”.
Select the firmware file. Click “Open” to start updating.
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The firmware file will be uploaded to the RAID controller. Then the upgraded process will
be started.
After the upgrade is completed, the subsystem will automatically restart. User needs to
login again to proRAID Manager GUI after subsystem has restarted.
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8.5 Restart
The RAID subsystem can be restarted using the “Restart” function in System menu.
Click the “Submit” button to restart the RAID subsystem.
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Chapter 9 Event Log
9.1 Event Log
The RAID subsystem’s event log information can be displayed by selecting “Event Log”
function in Event Log menu.
To update the current displayed event logs, click “Refresh”.
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9.2 Export Log
The RAID subsystem’s event log information can be saved to local destination by
selecting “Export Log” function in Event Log menu.
Click “Submit” to save the event log. The file type of the exported event log will be in
XML.
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Chapter 10 Information
10.1 Disk Information
To view detailed information about the disk drives in the RAID subsystem, select “Disk
Info” function in Info menu. The Slot ID (Disk#), the disk vendor, model, capacity,
number of remapped bad sectors, firmware version, and state are shown.
When disks are already member of an Array, the State will show USED. It will show FREE
when not yet used.
Each member disk drive can be mark as faulty. Click the “Mark Faulty” button for the
disk drive.
NOTE: Setting disk as faulty can cause unrecoverable data damage
for some RAID levels. Use this function with caution.
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10.2 RAID Information
To view information about existing Array and Volume in the RAID subsystem, select
“RAID” function in Info menu. Then select the Array name from the list of Arrays. The
Array Info and Logical Volume Details will be displayed.
The logical volume details can be shown in grid view using “Grid View” button. Default is
Chart View.
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10.3 System Information
Use the “System Info” function in Info menu to view the RAID subsystem information.
The Vendor Name, Serial No., Product ID, CPU Name, CPU Speed, Memory Size, Memory
Speed, BBM Module installed or not, ECC DRAM support, Subsystem Model, Controller
Model, Firmware Version, Disk Channel Type, Number of Host Channels, Host Channel
Type, Host Channel Sync Speed, Number of Slots, Number of Backplane Slots, Baud
Rate, Cache Type, Cache Ratio, Beeper enabled or not, Log Level, proSES enabled or not,
and JBOD Model appear in this screen.
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10.4 Hardware Monitor
To view RAID subsystem’s hardware information, select “Hardware Monitor” in Info
menu.
The Hardware Monitor information provides the power supply status, fan speed,
temperature, and voltage levels of the RAID subsystem. All items are also unchangeable.
The warning messages will indicate through the LCD, LED and alarm buzzer.
Item Warning Condition
Fan Speed < 2000 RPM
Power Supply +3.3V < 2.97V or > 3.63V
Power Supply +5.0V < 4.5V or > 5.5V
Power Supply +12V < 10.8V or > 13.2V
System Temperature > 70℃
HDD Temperature > 55℃
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Chapter 11 Raid Task
11.1 Raid Status
To view the RAID status of an Array, select “Raid Status” in Raid Task menu. The List of
Arrays, and the RAID Level, Capacity, Member Disks and Status are displayed.
Status
The states available are:
Ready
Need to Rebuild
Initializing
Rebuilding
Expanding
Verifying
Cloning
Fail
If the RAID is rebuilding, initializing, expanding,
checking or cloning, the progress of the task will be
displayed, e.g. ‘Initializing 75%’.
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A Parity Check function is available for existing Arrays with parity, such as those
configured with RAID level 3, 5, 6, 30, or 50, to check the consistency of parity blocks,
i.e. verify that parity information matches the stored data.
Click “Check Parity” button to start performing parity check. A message will be displayed.
The percentage of parity checking progress is displayed in Status field.
To cancel current Parity Check process, click the “Cancel Parity” button.
A message will be displayed.
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