iSCSI GbE to SAS/SATA
RAID Subsystem
User Manual
Revision 1.0
iSCSI GbE to SAS/SATA RAID Subsystem
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User Manual
Table of Contents
Preface ............................................................................................................................. 6
Before You Begin ........................................................................................................ 7
Safety Guidelines ............................................................................................................................................................ 7
Controller Configurations ........................................................................................................................................... 7
Packaging, Shipment and Delivery ...................................................................................................................... 7
Chapter 1 Introduction ....................................................................................... 10
1.1 Technical Specifications ............................................................................................................................... 12
1.2 Terminology ........................................................................................................................................................ 14
1.3 RAID Levels ......................................................................................................................................................... 16
1.4 Volume Relationship Diagram ................................................................................................................. 17
Chapter 2 Identifying Parts of the RAID Subsystem .......................... 18
2.1 Main Components ............................................................................................................................................ 18
2.1.1 Front View ................................................................................................................................................... 18
2.1.1.1 LCD Display Panel LED ............................................................................................................... 19
2.1.2 Rear View ..................................................................................................................................................... 21
2.2 Controller Module............................................................................................................................................. 22
2.2.1 Controller Module Panel ...................................................................................................................... 22
2.3 Power Supply / Fan Module (PSFM) ..................................................................................................... 24
2.3.1 PSFM Panel ................................................................................................................................................. 24
2.3.2 Fan Module .................................................................................................................................................. 25
2.4 Expander Module ............................................................................................................................................. 26
2.5 Checklist before Starting ............................................................................................................................ 28
Chapter 3 Getting Started with the Subsystem ..................................... 30
3.1 Installing the Rails and Mounting into Rack ................................................................................... 30
3.2 Removing the Disk Array from the Rack .......................................................................................... 43
3.3 Disk Drive Installation ......................................................................................................................................... 45
3.3.1 To install a SATA disk drive (Dual Controller Mode) in a disk tray: ........................................... 46
3.3.2 To install a SAS disk drive (Single or Dual Controller Mode) or SATA disk drive (Single
Controller Mode) in a disk tray: ............................................................................................................................ 51
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3.4 Connecting the iSCSI RAID Subsystem to the Network ......................................................... 56
3.5 Powering On ........................................................................................................................................................ 56
3.6 iSCSI Introduction ........................................................................................................................................... 57
Chapter 4 Quick Setup ........................................................................................ 59
4.1 Management Interfaces ............................................................................................................................... 59
4.1.1 Serial Console Port ................................................................................................................................ 59
4.1.2 Remote Control – Secure Shell ...................................................................................................... 59
4.1.3 LCD Control Module (LCM) ............................................................................................................... 60
4.1.4 Web GUI ....................................................................................................................................................... 62
4.2 How to Use the System Quickly ............................................................................................................. 64
4.2.1 Quick Installation .................................................................................................................................... 64
4.2.2 Volume Creation Wizard ..................................................................................................................... 67
Chapter 5 Configuration ..................................................................................... 69
5.1 Web GUI Management Interface Hierarchy .................................................................................... 69
5.2 System Configuration ................................................................................................................................... 71
5.2.1 System Setting ......................................................................................................................................... 71
5.2.2 Network Setting ....................................................................................................................................... 72
5.2.3 Login Setting ............................................................................................................................................. 73
5.2.4 Mail Setting ................................................................................................................................................. 74
5.2.5 Notification Setting ................................................................................................................................ 75
5.2.6 Active Directory Setting .......................................................................................................................... 77
5.2.7 User Setting .................................................................................................................................................... 79
5.3 iSCSI Configuration ........................................................................................................................................ 81
5.3.1 NIC ................................................................................................................................................................... 81
5.3.2 Entity Property ......................................................................................................................................... 85
5.3.3 Node ................................................................................................................................................................ 86
5.3.4 Session .......................................................................................................................................................... 89
5.3.5 CHAP Account............................................................................................................................................ 90
5.4 Volume Configuration ................................................................................................................................... 91
5.4.1 Physical Disk .............................................................................................................................................. 91
5.4.2 RAID Group ................................................................................................................................................ 94
5.4.3 Virtual Disk ................................................................................................................................................. 97
5.4.4 Snapshot .................................................................................................................................................... 101
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5.4.5 Logical Unit ............................................................................................................................................... 104
5.4.6 Example ...................................................................................................................................................... 105
5.5 Enclosure Management .............................................................................................................................. 110
5.5.1 Hardware Monitor ................................................................................................................................. 111
5.5.2 UPS ................................................................................................................................................................ 112
5.5.3 SES ................................................................................................................................................................ 114
5.5.4 Hard Drive S.M.A.R.T. Support .................................................................................................... 114
5.6 System Maintenance ................................................................................................................................... 116
5.6.1 System Information ............................................................................................................................ 116
5.6.2 Event Log ................................................................................................................................................... 117
5.6.3 Upgrade ...................................................................................................................................................... 117
5.6.4 Firmware Synchronization .............................................................................................................. 119
5.6.5 Reset to Factory Default .................................................................................................................. 119
5.6.6 Import and Export ................................................................................................................................ 120
5.6.7 Reboot and Shutdown ....................................................................................................................... 120
5.7 Home/Logout/Mute ....................................................................................................................................... 121
5.7.1 Home ............................................................................................................................................................ 121
5.7.2 Logout .......................................................................................................................................................... 121
5.7.3 Mute .............................................................................................................................................................. 121
Chapter 6 Advanced Operations ................................................................. 122
6.1 Volume Rebuild ............................................................................................................................................... 122
6.2 RG Migration ..................................................................................................................................................... 124
6.3 VD Extension .................................................................................................................................................... 126
6.4 Snapshot / Rollback ..................................................................................................................................... 127
6.4.1 Create Snapshot Volume ................................................................................................................. 128
6.4.2 Auto Snapshot ........................................................................................................................................ 130
6.4.3 Rollback ....................................................................................................................................................... 131
6.5 Disk Roaming ................................................................................................................................................... 132
6.6 VD Clone .............................................................................................................................................................. 132
6.8 MPIO and MC/S ............................................................................................................................................... 139
6.9 Trunking and LACP ....................................................................................................................................... 141
6.10 Dual Controllers ........................................................................................................................................... 143
6.10.1 Perform I/O ........................................................................................................................................... 143
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6.10.2 Ownership ............................................................................................................................................... 144
6.10.3 Controller Status ................................................................................................................................ 144
6.11 QReplica (Optional) ................................................................................................................................... 146
Chapter 7 Troubleshooting ............................................................................ 157
7.1 System Buzzer ................................................................................................................................................. 157
7.2 Event Notifications ........................................................................................................................................ 157
Appendix .................................................................................................................... 167
A. Certification list ................................................................................................................................................... 167
B. Microsoft iSCSI initiator ................................................................................................................................. 171
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Preface
About this manual
This manual provides information regarding the quick installation and hardware
features of the 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 con sidered 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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Before You Begin
Before going through with this manual, you should read and focus to 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 liste d procedures
in this manual for reliable performance.
Controller Configurations
This RAID subsystem supports dual 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 the subsystem and verify that the contents of the shipping carton are all
there 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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The shipping package contains the following:
iSCSI RAID Subsystem Unit
60 pairs of HDD side brackets
Three (3) power cords
Ten (10) Ethernet LAN cables
Two (2) External null modem cables
One (1) Disk Tool
Key of Top Cover
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NOTE: If any damage is found, contact the dealer or vendor for assistance.
Screws
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Chapter 1 Introduction
The iSCSI RAID Subsystem
The iSCSI RAID subsystem features high density disks capacity with 10Gigabit ports to
increase system efficiency and performance. It features high capability of expansion,
with 60 hot-swappable SAS/SATA hard disk drive bays in a 19-inch 4U rackmount unit,
scaling to a maximum storage capacity in the terabyte range. It also supports Dualactive controllers which provide better fault tolerance and higher reliability of system
operation.
Unparalleled Performance & Reliability
Supports Dual-active controller
Supports 802.3ad port trunking, Link Aggregation Control Protocol (LACP)
High data bandwidth of system architecture by powerful 64-bit RAID processor
Unsurpassed Data Availability
RAID 6 capability provides the highest level of data protection
Supports snapshot-on-the-box w/o relying on host software
Supports Microsoft Windows Volume Shadow Copy Services (VSS)
Exceptional Manageability Menu-driven front panel display
Management GUI via serial console, SSH telnet, Web and secure web(HTTPS)
Event notification via Email and SNMP trap
Menu-driven front panel display
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Features
60 hot-swappable disk drive bays which support SAS/SATA disks
Supports iSCSI jumbo frame
Supports Microsoft Multipath I/O (MPIO)
Supports RAID levels 0, 1, 0+1, 3, 5, 6, 10, 30, 50, 60 and JBOD
Local N-way mirror: Extension to RAID 1 level, N copies of the disk
Global and dedicated hot spare disks
Write-through or write-back cache policy for different application usage
Supports greater than 2TB per volume set (64-bit LBA support)
Supports manual or scheduling volume snapshot (up to 32 snapshots)
Snapshot rollback mechanism
On-line volume migration with no system down-time
Online volume expansion
Instant RAID volume availability and background initialization
Supports S.M.A.R.T, NCQ and OOB staggered Spin-up capable drives
High efficiency power supply which compliant with 80plus
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1.1 Technical Specifications
RAID Controller iSCSI-SAS
Controller Redundant
Host Interface Eight 1Gb/s Ethernet
Disk Interface 3Gb SAS or SATA II
Processor Type Intel IOP342 64-bit (Chevelon dual core)
Cache Memory 4GB ~ 8GB DDR-II ECC SDRAM
Battery Backup Optional Hot Pluggable BBM
Management Port support Yes
Monitor Port support Yes
UPS connection Yes
RAID level
0, 1, 0+1, 3, 5, 6, 10, 30, 50, 60 and
JBOD
Logical volume Up to 1024
iSCSI Jumbo frame support Yes
Supports Microsoft Multipath I/O
(MPIO)
Yes
802.3ad Port Trunking, LACP Support Yes
Host connection Up to 32
Host clustering Up to 16 for one logical volu me
Manual/scheduling volume snapshot Up to 32
Hot spare disks Global and dedicated
Host access control Read-Write & Read-Only
Online Volume Migration Yes
Online Volume sets expansion Yes
Configurable stripe size Yes
Auto volume rebuild Yes
N-way mirror (N copies of the disk) Yes
Microsoft Windows Volume Shadow
Copy Services (VSS)
Yes
Supports CHAP authentication Yes
S.M.A.R.T. support Yes
Snapshot rollback mechanism support Yes
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Platform Rackmount
Form Factor 4U
# of Hot Swap Trays 60
Tray Lock Yes
Disk Status Indicator Access / Fail LED
Backplane SAS / SATA II Single BP
# of PS/Fan Modules 700W x 3 w/PFC
# of Fans 11
Power requirements
AC 90V ~ 264V Full Range, 12A ~ 6A,
47Hz ~ 63Hz (each module)
Relative Humidity 10% ~ 85% Non-condensing
Operating Temperature 10°C ~ 40°C (50°F ~ 104°F)
Physical Dimension 850(L) x 482.5(W) x 177(H) mm
Weight (Without Disk) 45 Kg
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1.2 Terminology
The document uses the following terms:
RAID Redundant Array of Independent Disks. There are different
RAID levels with different degree of data protection, data
availability, and performance to host environment.
PD The Physical Disk belongs to the member disk of one specific
RAID group.
RG Raid Group. A collection of removable media. One RG consists
of a set of VDs and owns one RAID level attribute.
VD Virtual Disk. Each RD could be divided into several VDs. The
VDs from one RG have the same RAID level, but may have
different volume capacity.
LUN Logical Unit Number. A logical unit number (LUN) is a unique
identifier which enables it to differentiate among separate
devices (each one is a logical unit).
GUI Graphic User Interface.
RAID cell When creating a RAID group with a compound RAID level, such
as 10, 30, 50 and 60, this field indicates the number of
subgroups in the RAID group. For example, 8 disks can be
grouped into a RAID group of RAID 10 with 2 cells, 4 cells. In
the 2-cell case, PD {0, 1, 2, 3} forms one RAID 1 subgroup and
PD {4, 5, 6, 7} forms another RAID 1 subgroup. In the 4-cells,
the 4 subgroups are PD {0, 1}, PD {2, 3}, PD {4, 5} and PD
{6,7}.
WT Write-Through cache-write policy. A caching technique in which
the completion of a write request is not signaled until data is
safely stored in non-volatile media. Each data is synchronized in
both data cache and accessed physical disks.
WB Write-Back cache-write policy. A caching technique in which th e
completion of a write request is signaled as soon as the data is
in cache and actual writing to non-volatile media occurs at a
later time. It speeds up system write performance but needs to
bear the risk where data may be inconsistent between data
cache and the physical disks in one short time interval.
RO Set the volume to be Read-Only.
DS Dedicated Spare disks. The spare disks are only used by one
specific RG. Others could not use these dedicated spare disks
for any rebuilding purpose.
GS Global Spare disks. GS is shared for rebuilding purpose. If some
RGs need to use the global spare disks for rebuilding, they could
get the spare disks out from the common spare disks pool for
such requirement.
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DG DeGraded mode. Not all of the array’s member disks are
functioning, but the array is able to respond to application read
and write requests to its virtual disks.
SCSI Small Computer Systems Interface.
SAS Serial Attached SCSI.
S.M.A.R.T. Self-Monitoring Analysis and Reporting Technology.
WWN World Wide Name.
HBA Host Bus Adapter.
SES SCSI Enclosure Services.
NIC Network Interface Card.
BBM Battery Backup Module
iSCSI Internet Small Computer Systems Interface.
LACP Link Aggregation Control Protocol.
MPIO Multi-Path Input/Output.
MC/S Multiple Connections per Session
MTU Maximum Transmission Unit.
CHAP
Challenge Handshake Authentication Protocol. An optional
security mechanism to control access to an iSCSI storage
system over the iSCSI data ports.
iSNS Internet Storage Name Service.
SBB Storage Bridge Bay. The objective of the Storage Bridge Bay
Working Group (SBB) is to create a specification that defines
mechanical, electrical and low-level enclosure management
requirements for an enclosure controller slot that will support a
variety of storage controllers from a variety of independent
hardware vendors (“IHVs”) and system vendors.
Dongle Dongle board is for SATA II disk connection to the backplane.
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1.3 RAID Levels
The subsystem can implement 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
N-way
mirror
Extension to RAID 1 level. It has N copies of the
disk.
N
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
Mirroring of the two RAID 0 disk arrays. This
level provides striping and redundancy through
mirroring.
4
10
Striping over the two RAID 1 disk arrays. This
level provides mirroring and redundancy
through striping.
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
60
RAID 60 provides the features of both RAID 0
and RAID 6. RAID 60 includes both parity and
disk striping across multiple drives. RAID 60 is
best implemented on two RAID 6 disk arrays
with data striped across both disk arrays.
8
JBOD
The abbreviation of “Just a Bunch Of Disks”.
JBOD needs at least one hard drive.
1
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1.4 Volume Relationship Diagram
This is the design of volume structure of the iSCSI RAID subsyst em. It describes the
relationship of RAID components. One RG (RAID Group) is composed of several PDs
(Physical Disks). One RG owns one RAID level attribute. Each RG can be divided into
several VDs (Virtual Disks). The VDs in one RG share the same RAID level, but may have
different volume capacity. Each VD will be associated with the Global Cache Volume to
execute the data transaction. LUN (Logical Unit Number) is a unique identifier, in which
users can access through SCSI commands.
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Chapter 2 Identifying Parts of the RAID
Subsystem
The illustrations below identify the various parts of the subsystem.
2.1 Main Components
2.1.1 Front View
IMPORTANT: When powering off the subsystem, press the Main
Switch for 4 seconds and allow at least 3 minutes (during which
each disk slot starting from slot #1 until slot #60 will be powered
down) for the subsystem to shutdown properly. Then turn off the
switches of the 2 Power Supply Fan Modules.
Main Switch
HDD Status Indicator
Display Panel
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HDD Status LEDs
Indicator Color Description
Activity LED
Blue
Blinking
Indicates the disk drive is busy or being
accessed.
Power
On/Fail LED
Green Indicates the disk drive in this slot is good.
RED Indicates the disk drive in this slot is faulty.
LED is
off
Indicates there is no disk drive in this slot.
RED
Blinking
Indicates the disk drive in this slot is
rebuilding.
2.1.1.1 LCD Display Panel LED
Activity LED
Power On/Fail LED
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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 or
view information in 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.
Environmental Status
Parts Function
Power LED Green indicates power is ON.
Power Fail LED
If one of the redundant power supply unit fails,
this LED will turn to RED and alarm will sound.
Fan Fail LED
If a fan fails, this LED will turn red and an alarm
will sound.
Over Temperature
LED
If temperature irregularities in the system occur,
this LED will turn RED and alarm will sou nd.
Voltage Warning
LED
If the output DC voltage is above or below the
allowed range, an alarm will sound warning of a
voltage abnormality and this LED will turn red.
Activity LED
This LED will blink blue when the Disk Array is
busy or active.
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2.1.2 Rear View
1. Controller Module
The subsystem has dual controller module.
2. Power Supply Unit 1 ~ 3
Three power supplies 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.
Fan4 and Fan5 Fan6 and Fan7
PSU 1 PSU 2 PSU 3
Controller
Module 1
Controller
Module 2
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2.2 Controller Module
RAID Controller Module
2.2.1 Controller Module Panel
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1. Uninterrupted Power Supply (UPS) Port (APC Smart UPS only)
The subsystem may come with an optional UPS port allowing you to connect an APC
Smart 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.
2. R-Link Port: Remote Link through RJ-45 Ethernet for remote management
The subsystem is equipped with one 10/100 Ethernet RJ45 LAN port for remote
configuration and monitoring. You use web browser to manage the RAID subsystem
through Ethernet.
3. LAN Ports (Gigabit)
Each Controller is equipped with four LAN data ports for iSCSI connection.
4. Controller Status LED
Green Controller status normal or in the booting.
Red Other than above status.
5. Master/Slave LED
Green Master controller.
Off Slave controller.
6. Cache Dirty LED
Orange Data on the cache waiting for flush to disks.
Off No data on the cache.
7. BBM Status LED
Green BBM installed and powered
Off No BBM
8. BBM Status Button
When the system power is off, press the BBM status button, if the BBM LED is Green,
then the BBM still has power to keep data on the cache. If not, then the BBM power
is ran out and cannot keep the data on the cache anymore.
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2.3 Power Supply / Fan Module (PSFM)
The RAID subsystem contains thre e 700W Power Supply / Fan Modules. All the
Power Supply / Fan Modules (PSFMs) are inserted into the rear of the chassis.
2.3.1 PSFM Panel
The panel of the Power Supply/Fan Module con tains: 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.
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.
Fan1
Power On/Off Switch
Power On/Fail Indicator
Power Input Socket
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2.3.2 Fan Module
The 60bays Disk Array contains 11 fans.
Fan4 and Fan5 Fan6 and Fan7
FAN 1 FAN 2 FAN 3
Fan10
Fan11
Fan8
Fan9
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Indicator Color Description
Fan Fault LED
No light Indicates the fan is normal.
Red Indicates the fan is faulty.
2.4 Expander Module
The 60bays Disk Array contains four expander modules.
FAN Fail Indicator
Expander Module A2
(
for Controller 1
)
Expander Module B2
(for Controller 2)
Expander Module A1
(
for Controller 1
)
Expander Module B1
(
for Controller 2
)
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Status LEDs
If an expander module fails to function, the “EXM!” fail LED on the front Panel will
turn red and an alarm will sound.
Indicator Color Description
Expander module
Fault LED
No light
Indicates the Expander module is
normal.
Red
Indicates the Expander module is
faulty.
Expander module Fail Indicator
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2.5 Checklist before Starting
Before starting, check or prepare the following items.
Check “Certification list” in Appendix A to confirm the hardware settin g is fully
supported.
Read the latest release note before upgrading. Release note accompany with
release firmware.
A server with a NIC or iSCSI HBA.
CAT 5e, or CAT 6 network cables for management port and iSCSI data ports.
Recommend CAT 6 cables for best performance.
Prepare storage system configuration plan.
Management and iSCSI data ports network information. When using static IP,
please prepare static IP addresses, subnet mask, and default gateway.
Gigabit LAN switches. (recommended) Or Gigabit LAN switches with
VLAN/LCAP/Trunking. (optional)
CHAP security information, including CHAP username and secret. (optional)
Setup the hardware connection before powering on the server(s) and the iSCSI
RAID system.
In Addition, installing an iSNS server is recommended.
Host server is suggested to logon the target twice (both controller 1 and
controller 2), and then MPIO should be setup automatically.
NOTE: iSNS server is recommended for dual controller system.
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For better data service availability, all the connections among host servers, GbE switches,
and the dual controllers are recommended as redundant as below.
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Chapter 3 Getting Started with the Subsystem
3.1 Installing the Rails and Mounting into Rack
NOTE: At least two persons are needed to lift the Disk Array. To
reduce the weight of the Disk Array, remove the power supply
modules from the rear of Disk Array. If disk drives are already
installed in the disk trays, remove also the disk trays. Refer to
appropriate sections on how to remove the power supply modules
and how to remove the disk trays/disk drives.
NOTE: The sample model used in the following installation might
not be the actual model for this manual.
NOTE: The Disk Array must be installed near the Disk Array or host
system where it will be connected. A Phillips screwdriver is needed
in installation.
WARNING! It is prohibited to put other enclosures on top of the
64-bay Disk Array because the total weight will not be supported
by the rails.
Steps:
1. Open the rail box.
2. Remove the 2 rail assemblies and the screws/accessories from the box. Check
its contents.
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3. Insert three (3) M5 nuts on the 2 holes of the front left side of the rack post.
Rack Post – Front Left Side
4. Insert three (3) M5 nuts on the 2 holes of the front right side of the rack post.
Rack Post – Front Right Side
Position
of M5
nuts on
the 3
holes of
left rack
post
4U
4U
Position
of M5
nuts on
the 3
holes of
right
rack
post
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5. Prepare the 2 rail assemblies.
Front Side of Rail Assembly Rear Side of Rail Assembly
6. Hold one rail assembly and install in the front left side of rack. To install, align
and insert the 2 latches of the rail into the 2 holes on the rack post. Use the
Lock Lever to lock the rail assembly in the left rack post.
View from Front Side of Front Left Rack Post
Lock Lever is Not Locked
Lock
Lever
Lower
M5 nut
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View from Front Side of Front Left Rack Post
Lock Lever is Locked
View from Rear Side of Front Left Rack Post
2 Latches are inserted in the 4
th
and 6th holes from bottom (M5 nut)
Lower
M5 Nut
Lock
2 Latches
6th
5th
4th
3rd
2
nd
1
st
Lock
Lever
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7. Install the other end of rail assembly to the left rear side. Align and insert the 2
latches on the 2 holes on the rear rack post, and then push the rail a little
towards the rear side and lock the lock lever on the rack post.
View from Rear Side of Rear Left Rack Post
View from Rear Side of Rear Left Rack Post
View from Rear Side of Rear Left Rack Post
Lock
Lever
Lock
Lever
Latches
Lock
Lever
Latches
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8. Repeat step 6 to install the other rail assembly into the right front side.
View from Front Side of Front Right Rack Post
Lock Lever is Not Locked
View from Front Side of Front Right Rack Post
Lock Lever is Locked
Lock
Lever
Lower
M5 nut
Lock
Lever
Lower
M5 nut
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View from Rear Side of Front Right Rack Post
2 Latches are inserted in the 4
th
and 6th holes from bottom (M5 nut)
9. Repeat step 7 to install the other end of rail assembly to the rack post of rear
right side.
View from Rear Side of Rear Right Rack Post
2 Latches
Lower
M5 nut
Lock
6th
5th
4th
3
rd
2
nd
1st
Lock
Lever
Latches
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View from Rear Side of Rear Right Rack Post
View from Rear Side of Rear Right Rack Post
Lock
Latches
Lock
Lever
Latches
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10. Pull the 2 middle rail members out from the rail assembly.
Middle Rail Member of Rail Assembly on Left Side of Rack
View from Rear Side
Rear Left Side
Front Left Side
Front Side
Right Front Side
Left Front Side
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11. With at least 4 persons carrying the enclosure, insert the 2 inner rails (attached
to the sides of the enclosure) into the middle rails. Slide the enclosure until it
stops or about half way through.
NOTE: Be careful when inserting the 2 inner rails into the middle
rails. The 2 inner rails must be parallel with the 2 middle rails so
that 2 inner rails will insert and slide easily. Use hands to guide
the inner rails when inserted into the middle rails.
Inner Rail Aligned with and Inserted into the Middle Rail
Important: Make sure to hold the enclosure firmly in level position
while inserting the enclosure in the rail. Keep holding the
enclosure moved inside the rack. When the half rear side is inside
the rack, you can put down the two rear handles but support in the
bottom part of the enclosure is still needed so that the enclosure
will not drop down.
Middle Rail
Inner
Rail
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View from Rear Side
12. Press outwards the blue locks on both sides of the inner rail members at the
same time. Then push the enclosure inwards (or backwards) until it goes inside
the rack.
View from Right Side of Enclosure
Blue Lock of Inner Rail is Pushed a Little Outwards and
Enclosure is Pushed Inwards
Blue Lock of
Inner Rail
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View from Rear Side of Rack Cabinet
Enclosure is Pushed Inwards
13. Insert the power supply modules.
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14. Use six (6) M5 screws to lock the enclosure into the rack post, one screw in
each corner. Note that the screw driver will need to pass through the corner
hole of front panel for the two upper corner holes on both sides.
Front Left Side Front Right Side
15. Open the top cover and re-insert the disk drives / disk trays, if disk drives/disk
trays were previously removed. Then close the top cover.
Corner
Hole
Screw
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3.2 Removing the Disk Array from the Rack
1. Remove the six screws in the front corner.
Front Left Side Front Right Side
2. Remove the power supplies in the rear and the disk drives from the disk slots.
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3. Carefully pull the subsystem.
4. Push the white lock to release the subsystem from the rail.
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3.3 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.
NOTE: When the Disk Array is shipped, the disk trays are not
placed in the disk slots. If all disk trays will be used to install all
60 disk drives, for quicker and easier installation of disk drives in
the Disk Array, it is recommended to attach first each disk drive
with HDD side brackets.
DISK SLOT NUMBERS
Rear side
57 53 49 46 43 39 35
31 27 23 19 16
13 9 5 1
58 54 50 B2 A2 40 36 32 28 24 20 B1 A1 10 6 2
59 55 51 47 44 41 37 33 29 25 21 17 14 11 7 3
60 56 52 48 45 42 38 34 30 26 22 18 15 12 8 4
Front Side
Slot 1
Slot 4
Slot 57
Slot 60
A1:
Expander
module
B2:
Expander
module
A2:
Expander
module
B1:
Expander
module
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IMPORTANT: In dual controller mode, the installation of SATA disk
drive in a disk tray is done differently. In single controller mode, the
installation of SATA disk in a disk tray is the same with SAS disk.
HDD Single Controller Dual Controller
SATA No need dongle board Need dongle board
SAS No need dongle board No need dongle board
NOTE: In this model, it is recommended to use 6Gb hard drive
disks.
3.3.1 To install a SATA disk drive (Dual Controller Mode) in a disk tray:
A. Dongle boards are purchased separately from shipment.
1. Prepare the HDD side brackets. Remove them from the dummy disk by pushing
the upper sides of the dummy disk as shown below:
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2. Prepare the dongle board with metal bracket.
3. Connect the dongle board into the SATA disk drive.
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4. Place the brackets on both sides of the disk drive and secure them with screws.
3 screws #6-32 UNC L=5.0mm
#6-32 L=4.0mm
for dongle board metal bracket
#6-32 L=4.0mm
for dongle board metal bracket
2 screws #6-32 UNC L=5.0mm
5. Place the slotted flat head screw.
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B. Dongle boards included in shipment.
1. Prepare the HDD side brackets. Remove them from the dummy disk by pushing
the upper sides of the dummy disk as shown below:
1
2 3 4
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2. Place the brackets on both sides of the disk drive and secure them with screws.
3 screws #6-32 UNC L=5.0mm
2 screws #6-32 UNC L=5.0mm
3. Place the slotted flat head screw.
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3.3.2 To install a SAS disk drive (Single or Dual Controller Mode) or SATA
disk drive (Single Controller Mode) in a disk tray:
1. Prepare the HDD side brackets. Remove them from the dummy disk by pushing
the upper sides of the dummy disk as shown below:
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2. Place the brackets on both sides of the disk drive and secure them with screws.
3 screws #6-32 UNC L=5.0mm
2 screws #6-32 UNC L=5.0mm
3. Place the slotted flat head screw.
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4. Place the drive carefully in the disk slot.
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5. Fix the disk drive using the disk tool that is included in the package.
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6. Repeat the same steps for the rest of the disks.
Note: You can use also the disk tool to remove the disk drive in the
disk slot.
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3.4 Connecting the iSCSI RAID Subsystem to the Network
To connect the iSCSI unit to the network, insert the network cable that came with the
unit into the network port (LAN1) at the back of iSCSI unit. Insert the other end into a
Gigabit BASE-T Ethernet connection on your network hub or switch. You may connect
the other network ports if needed.
For remote management of iSCSI RAID subsystem, use another network cable to
connect the R-Link port to your network.
3.5 Powering On
1. Plug in the power cords into the AC Power Input Socket located at the rear of the
subsystem.
NOTE: The subsystem is equipped with redundant, full range
power supplies with PFC (power factor correction). The system will
automatically select voltage.
2. Turn on each Power On/Off Switch to power on the subsystem.
3. Push the main switch button in the front panel to power on.
4. The Power LED on the front Panel will turn green.
Main Switch
AC Power Input Socket
Power On/Off Switch
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3.6 iSCSI Introduction
iSCSI (Internet SCSI) is a protocol which encapsulates SCSI (Small Computer System
Interface) commands and data in TCP/IP packets for linking storage devices with
servers over common IP infrastructures. iSCSI provides high performance SANs over
standard IP networks like LAN, WAN or the Internet.
IP SANs are true SANs (Storage Area Networks) which allow few of servers to attach to
an infinite number of storage volumes by using iSCSI over TCP/IP networks. IP SANs
can scale the storage capacity with any type and brand of storage system. In addition,
using any type of network (Ethernet, Fast Ethernet, Gigabit Ethernet) and combining
operating systems (Microsoft Windows, Linux, Solaris, …etc.) within the SAN network.
IP-SANs also include mechanisms for security, data replication, multi-path and high
availability.
Storage protocol, such as iSCSI, has “two ends” in the connection. These ends are the
initiator and the target. In iSCSI we call them iSCSI initiator and iSCSI target. The
iSCSI initiator requests or initiates any iSCSI communication. It requests all SCSI
operations like read or write. An initiator is usually located on the host/server side
(either an iSCSI HBA or iSCSI SW initiator).
The iSCSI target is the storage device itself or an appliance which controls an d serves
volumes or virtual volumes. The target is the device which performs SCSI comman ds
or bridges it to an attached storage device. iSCSI targets can be disks, tapes, RAID
arrays, tape libraries, and etc.
iSCSI device 1
(target)
Host 1
(initiator)
IP SAN
Host 2
(initiator)
iSCSI
HBA
iSCSI device 2
(target)
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The host side needs an iSCSI initiator. The initiator is a driv er which handles the SCSI
traffic over iSCSI. The initiator can be software or hardware (HBA). Please refer to the
certification list of iSCSI HBA(s) in Appendix A. OS native initiators or other software
initiators use the standard TCP/IP stack and Ethernet hardw are, while iSCSI HBA(s)
use their own iSCSI and TCP/IP stacks on board.
Hardware iSCSI HBA(s) would provide its initiator tool. Please refer to the vendors’
HBA user manual. Microsoft, Linux and Mac provide softw are iSCSI initiator driver.
Below are the available links:
1. Link to download the Microsoft iSCSI software initiator:
http://www.microsoft.com/downloads/details.aspx?FamilyID=12cb3c1a-15d64585-b385-befd1319f825&DisplayLang=en
Please refer to Appendix D for Microsoft iSCSI initiator installation procedur e.
2. Linux iSCSI initiator is also av ailab le. For diff eren t kernels, there are dif feren t iSCSI
drivers. If you need the latest Linux iSCSI initiator, please visit Open-iSC SI project
for most update information. Linux-iSCSI (sfnet) and Open-iSCSI projects merged
in April 11, 2005.
Open-iSCSI website: http://www.open-iscsi.org/
Open-iSCSI README: http://www.open-iscsi.org/docs/README
Features: http://www.open-iscsi.org/cgi-bin/wiki.pl/Roadmap
Support Kernels: http://www.open-iscsi.org/cgi-bin/wiki.pl/Supported_Kernels
Google groups: http://groups.google.com/group/open-iscsi/threads?gvc=2
http://groups.google.com/group/open-iscsi/topics
Open-iSCSI Wiki: http://www.open-iscsi.org/cgi-bin/wiki.pl
3. ATTO iSCSI initiator is available for Mac.
Website: http://www.attotech.com/xtend.html
5. Solaris iSCSI Initiator
Version: Solaris 10 u6 (10/08)
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Chapter 4 Quick Setup
4.1 Management Interfaces
There are three management methods to manage the iSCSI RAID subsystem described
as follows:
4.1.1 Serial Console Port
Use NULL modem cable to connect console port.
The console settings are on the following:
Baud rate: 115200, 8 bits, 1 stop bit, and no parity.
Terminal type: vt100
Login name: admin
Default password: 00000000
4.1.2 Remote Control – Secure Shell
SSH (secure shell) is required for remote login. The SSH client software is available at
the following web site:
SSHWinClient WWW: http://www.ssh.com/
Putty WWW: http://www.chiark.greenend.org.uk/
Host name: 192.168.10.50 (Please check your DHCP address for this field.)
Login name: admin
Default password: 00000000
NOTE: This iSCSI RAID Series only support SSH for remote
control. For using SSH, the IP address and the password is
required for login.
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4.1.3 LCD Control Module (LCM)
After booting up the system, the following screen shows management port IP and
model name:
192.168.10.50
iSCSI-Model
Press “
”, the LCM functions “Alarm Mute”, “Reset/Shutdown”, “Quick
Install”, “View IP Setting”, “Change IP Config” and “Reset to Default” will
rotate by pressing (up) and (down).
When there is WARNING or ERROR level of event happening, the LCM also shows the
event log to give users event information from front panel.
The following table is the function description of LCM menus.
System Info Displays System information.
Alarm Mute Mute alarm when error occurs.
Reset/Shutdown Reset or shutdown controller.
Quick Install Quick three steps to create a volume. Please refer to next
chapter for operation in web UI.
Volume Wizard Smart steps to create a volume. Please refer to next chapter
for operation in web UI.
View IP Setting Display current IP address, subnet mask, and gateway.
Change IP Config Set IP address, subnet mask, and gateway. There are 2
selections, DHCP (Get IP address from DHCP server) or set
static IP.
Reset to Default Reset to default sets password to default: 00000000, and set
IP address to default as DHCP setting.
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The following is LCM menu hierarchy.
proIPS
[System Info.]
[Firmware Version
x.x.x]
[RAM Size
xxx MB]
[Alarm Mute] [Yes No]
[Reset/Shutdown]
[Reset]
[Yes
No]
[Shutdown]
[Yes
No]
[Quick Install]
RAID 0
RAID 1
RAID 3
RAID 5
RAID 6
RAID 0+1
xxx GB
[Apply
The
Config]
[Yes
No]
[Volume Wizard]
[Local]
RAID 0
RAID 1
RAID 3
RAID 5
RAID 6
RAID 0+1
[Use
default
algorithm]
[Volume
Size]
xxx GB
[Apply
The
Config]
[Yes
No]
[JBOD x]
RAID 0
RAID 1
RAID 3
RAID 5
RAID 6
RAID 0+1
[new x
disk]
xxx BG
Adjust
Volume
Size
[Apply
The
Config]
[Yes
No]
[View IP Setting]
[IP Config]
[Static IP]
[IP Address]
[192.168.010.050]
[IP Subnet Mask]
[255.255.255.0]
[IP Gateway]
[192.168.010.254]
[Change IP
Config]
[DHCP]
[Yes
No]
[Static IP]
[IP
Address]
Adjust IP
address
[IP Subnet
Mask]
Adjust
Submask
IP
[IP
Gateway]
Adjust
Gateway
IP
[Apply IP
Setting]
[Yes
No]
[Reset to Default] [Yes No]
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CAUTION! Before power off, it is better to execute “Shutdown” to
flush the data from cache to physical disks.
4.1.4 Web GUI
The iSCSI RAID subsystem supports graphical user interface (GUI) to operate the
system. Be sure to connect the LAN cable. The default IP setting is DHCP; open the
browser and enter:
http://192.168.10.50 (Please check the DHCP address first on LCM)
Click any function at the first time; it will pop up a dialog wind ow for authentication.
User name: admin
Default password: 00000000
After login, you can choose the function blocks on the left side of window to do
configuration.
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There are seven indicators at the top-right corner.
RAID light:
Green RAID works well.
Red RAID fails.
Temperature light:
Green Temperature is normal.
Red Temperature is abnormal.
Voltage light:
Green voltage is normal.
Red voltage is abnormal.
UPS light:
Green UPS works well.
Red UPS fails.
Fan light:
Green Fan works well.
Red Fan fails.
Power light:
Green Power works well.
Red Power fails.
Dual controller light:
Green Both controller1 and controller2 are
present and well.
Orange The system is degraded and there is
only 1 controller alive and well.
Return to home page.
Logout the management web UI.
Mute alarm beeper.
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4.2 How to Use the System Quickly
4.2.1 Quick Installation
Please make sure that there are some free drives installed in this system. SAS drivers
are recommended. Please check the hard drive details in “/ Volume configuration /
Physical disk”.
Step 1: Click “Quick installation” menu item. Follow the steps to set up system
name and date/time.
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Step2: Confirm the management port IP address and DNS, and then click “Next”.
Step 3: Set up the data port IP and click “Next”.
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Step 4: Set up the RAID level and volume size and click “Next”.
Step 5: Check all items, and click “Finish”.
Step 6: Done.
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4.2.2 Volume Creation Wizard
“Volume create wizard” has a smarter policy. When the system is inserted with some
HDDs. “Volume create wizard” lists all possibilities and sizes in different RAID levels,
it will use all available HDDs for RAID level depends on which user chooses. When
system has different sizes of HDDs, e.g., 8*200G and 8*80G, it lists all possibilities and
combination in different RAID level and different sizes. After user chooses RAID level,
user may find that some HDDs are available (free status). It gives user:
1. Biggest capacity of RAID level for user to choose and,
2. The fewest disk number for RAID level / volume size.
E.g., user chooses RAID 5 and the controller has 12*200G + 4*80G HDDs inserted. If
we use all 16 HDDs for a RAID 5, and then the maximum size of volume is 1200G
(80G*15). By the wizard, we do smarter check and find out the most efficient way of
using HDDs. The wizard only uses 200G HDDs (Volume size is 200G*11=2200G), the
volume size is bigger and fully uses HDD capacity.
Step 1: Select “Volume create wizard” and then choose the RAID level. After the
RAID level is chosen, click “Next”.
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Step 2: Please select the combination of the RG capacity, or “Use default algorithm”
for maximum RG capacity. After RG size is chosen, click “Next”.
Step 3: Decide VD size. User can enter a number less or equal to the default number.
Then click “Next”.
Step 4: Confirmation page. Click “Finish” if all setups are correct. Then a VD will be
created.
Step 5: Done. The system is available now.
NOTE: A virtual disk of RAID 0 is created and is named by system
itself.
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Chapter 5 Configuration
5.1 Web GUI Management Interface Hierarchy
The below table is the hierarchy of the management GUI.
System configuration
System setting
System name / Date and time / System indication
Network settin
g
MAC address / Address / DNS / Port
Login setting
Login configuration / Admin password / User
password
Mail setting
Mail
Notification
setting
SNMP / Messenger / System log server / Event log
filter
iSCSI configuration
NIC
Show information for:(Controller 1/ Controller 2)
Aggregation / IP settings for iSCSI ports / Become
default gateway / Enable jumbo frame / Ping host
Entity property
Entity name / iSNS IP
Node
Show information for:(Controller 1/ Controller 2)
Authenticate / Change portal / Rename alias/ User
Session
Show information for:(Controller 1/ Controller 2)
List connection / Delete
CHAP account
Create / Modify user information / Delete
Volume configuration
Physical disk
Set Free disk / Set Global spare / Set Dedicated
spare / Upgrade / Disk Scrub / Turn on/off the
indication LED / More information
RAID group
Create / Migrate / Activate / Deactivate / Parity
check / Delete / Set preferred owner /Set disk
property / More information
Virtual disk
Create / Extend / Parity check / Delete / Set
property / Attach LUN / Detach LUN / List LUN /
Set clone / Clear clone / Start clone / Stop clone /
Schedule clone / Set snapshot space / Cleanup
snapshot / Take snapshot / Auto snapshot / List
snapshot / More information
Snapshot
Set snapshot space / Auto snapshot / Take
snapshot / Export / Rollback / Delete/ Cleanup
snapshot
Logical unit
Attach / Detach/ Session
Enclosure management
Hardware
monitor
Controller 1 / BPL / Controller 2 / Auto shutdown
UPS
UPS Type / Shutdown battery level / Shutdown
delay / Shutdown UPS
SES
Enable / Disable
S.M.A.R.T.
S.M.A.R.T. information (Only for SATA hard
drives)
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Maintenance
System
information
System information
Event log
Download / Mute / Clear
Upgrade
Browse the firmware to upgrade
Firmware sync
hronization
Synchronize the slave controller’s firmware version
with the master’s
Reset to factor
y default
Sure to reset to factory default?
Import and
export
Import/Export / Import file
Reboot and shu
tdown
Reboot / Shutdown
Quick installation Step 1 / Step 2 / Step 3 / Step 4 / Confirm
Volume creation wizard Step 1 / Step 2 / Step 3 / Confirm
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5.2 System Configuration
“System configuration” is designed for setting up the “System setting”,
“Network setting”, “Login setting”, “Mail setting”, and “Notification
setting”, ”Active Directory setting”, “User setting”.
5.2.1 System Setting
“System setting” can be used to set system name and date. Default “System
name” is composed of model name and serial number of this system.
Check “Change date and time” to set up the current date, time, and time zone before
using or synchronize time from NTP (Network Time Protocol) server. Click “Confirm” in
System indication to turn on the system indication LED. Click again to turn off.
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5.2.2 Network Setting
“Network setting” is for changing IP address for remote administration usage. There
are 2 options, DHCP (Get IP address from DHCP server) and static IP. The default setting
is DHCP. User can change the HTTP, HTTPS, and SSH port number when the default port
number is not allowed on host/server.
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5.2.3 Login Setting
“Login setting” can set single admin, auto logout time and Admin/User password.
The single admin can prevent multiple users access the same controller at the same
time.
1. Au to logout: The options are (1) Disable; (2) 5 minutes; (3) 30 minutes; (4)
1 hour. The system will log out automatically when user is inactive for a period
of time.
2. Login lock: Disable/Enable. Wh en th e login lo ck is en abled, th e syst em allow s
only one user to login or modify system settings.
Check “Change admin password” or “Change user password” to change admin or
user password. The maximum length of password is 12 characters.
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5.2.4 Mail Setting
“Mail setting” can accept at most 3 mail-to address entries for receiving the event
notification. Some mail servers would check “Mail-from address” and need
authentication for anti-spam. Please fill the necessary fields and click “Send test mail”
to test whether email functions are available or working. User can also select which
levels of event logs are needed to be sent via Mail. Default setting only enables ERROR
and WARNING event logs. Please also make sure the DNS server IP is well-setup so the
event notification mails can be sent successfully.
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5.2.5 Notification Setting
“Notification setting” can be used to set up SNMP trap for alerting via SNMP, pop-up
message via Windows messenger (not MSN), alert via syslog protocol, and event log
filter.
“SNMP” allows up to 3 SNMP trap addresses. Default community name is set as
“public”. User can choose the event log levels and default setting only enables INFO
event log in SNMP. There are many SNMP tools. The following web sites are for your
reference:
SNMPc: http://www.snmpc.com/
Net-SNMP: http://net-snmp.sourceforge.net/
Using “Messenger”, user must enable the service “Messenger” in Windows (Start
Control Panel Administrative Tools Services Messenger), and then event logs
can be received. It allows up to 3 messenger addresses. User can choose the event log
levels and default setting enables the WARNING and ERROR event logs.
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Using “System log server”, user can choose the facility and the event log level. The
default port of syslog is 514. The default setting enables event level: INFO, WARNING
and ERROR event logs.
Configuration
The following configuration is a sample for target and log server setting:
Target side
1. Go to \System configuration\Notification setting\System log server.
2. Fill the fields
3. Server IP/hostname: enter the IP address or hostname of system log server.
4. UDP Port: enter the UDP port number on which system log serv er is listening to.
The default port number is 514.
5. Facility: select the facility for event log.
6. Event level: Select the event log options.
7. Click “Confirm” button.
Server side (Linux – RHEL4)
The following steps are used to log RAID subsystem messages to a disk file. In
the following, all messages are setup with facility “Local1” and event level
“WARNING” or higher are logged to /var/log/raid.log.
1. Flush firewall
2. Add the following line to /etc/syslog.conf
Local1.warn /var/log/raid.log
3. Send a HUP signal to syslogd process, this lets syslogd perform a re-initialization.
All open files are closed, the configuration file (default is /etc/syslog.conf) will be
reread and the syslog(3) facility is started again.
4. Activate the system log daemon and restart
Note: sysklogd has a parameter "-r" , which will enable sysklogd to receive
message from the network using the internet domain socket with the syslog
service, this option is introduced in version 1.3 of sysklogd package.
5. Check the syslog port number,
e.g. , 10514
6. Change controller’s system log server port number as above
Then, syslogd will direct the selected event log messages to /var/log/raid.log
when syslogd receive the messages from RAID subsystem.
For more detail features, please check the syslogd and syslog.conf manpage
(e.g.,man syslogd).
Server side (Windows 2003)
Windows doesn’t provide system log server, user needs to find or purchase a
client from third party, below URL provide evaluation version, you may use it for
test first. http://www.winsyslog.com/en/
1. Install winsyslog.exe
2. Open "Interactives Syslog Server"
3. Check the syslog port number, e.g., 10514
4. Change controller’s system log server port number as above
5. Start logging on "Interactives Syslog Server"
There are some syslog server tools. The following web sites are for your reference:
WinSyslog: http://www.winsyslog.com/
Kiwi Syslog Daemon: http://www.kiwisyslog.com/
Most UNIX systems have built-in syslog daemon.
“Event log filter” setting can enable event level on “Pop up events” and “LCM”.
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5.2.6 Active Directory Setting
RBAC (Role-Based Access Control) is an approach to restricting system access to
authorized users. The storage systems add this feature. The account administrator can
create a new account with assigning a role to grant the access right.
This feature is also integrated with Microsoft Active Directory service. It allows users to
log on the The storage systems with an account which is created in Microsoft Active
Directory. It helps administrators to centralize the access control of the The storage
systems without maintaining separate account lists.
To fulfill the feature, there are two tabs added. The Active Directory setting tab and
the User setting tab. The Active Directory setting tab is used to setup AD domain
and server IP. This table shows the role names, the roles which are mapped to the AD
group name and their permissions.
Role Name AD Group Name
Permissions
admin Administrators Full permissions.
user Users
Browse the configurations only.
No permission to change anything.
net
Network
Configuration
Operators
Have permission to change
Network setting, Mail setting,
Notification setting in System
configurations.
Have permission to change NIC in
iSCSI configurations. (only for
iSCSI models.)
No permission to change Volume
configurations settings.
data Server Operators
Have permission to operate in
Volume configurations.
No permission to change System
configurations settings.
account Account Operators
Have permission to create, modify
and delete the accounts, and their
permissions.
No permission to change admin
group.
The options are available on this tab:
AD domain: Fill in Active Directory domain name.
AD server: Fill in Active Directory server IP address.
When it is done, click Confirm button.
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After the above settings are entered, the login authentication supports Windows Active
Directory service. First, you should create an account with an AD group in Windows. And
then try to use the account to login the storage system. The syntax of the user name in
Active Directory is:
UPN (User Principal Name) (e.g: Administrator@example.com
The permission of the account depends on what AD group belongs in Windows.
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5.2.7 User Setting
The User setting tab is used to manage the local accounts. The username which
belongs to the role admin or account has the permission to create a new account,
modify the password or delete the account. This table shows the role names, system
default users and their permissions.
Role Name Default User Permissions
admin admin Full permissions.
user user
Browse the configurations only.
No permission to change anything.
net N/A
Have permission to change
Network setting, Mail setting,
Notification setting in System
configurations.
Have permission to change NIC in
iSCSI configurations. (only for
iSCSI models.)
No permission to change Volume
configurations settings.
data N/A
Have permission to operate in
Volume configurations.
No permission to change System
configurations settings.
account N/A
Have permission to create, modify
and delete the accounts, and their
permissions.
No permission to change admin
group.
There are two default users in the system: admin and user. The username admin
belongs to the role admin which has full permissions and cannot delete. The other
username user belongs to the role user which has read-only permissions.
TIP: The username “admin” can not be changed the role type
and it can not be deleted.
The options are available on this tab:
Create: Add a new account. When clicking Create button, it pop-up
a dialog as the following. Choose a role, enter a name and password.
And then click OK.
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OP. -> Change password: Change the user’s password.
OP. -> Change user role: Change the user’s role.
OP. -> Delete: Delete the user.
Users can log on the storage system with the new accounts and operate the functions
which are according to the permission of the role.
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5.3 iSCSI Configuration
“iSCSI configuration” is designed for setting up the “Entity Property”, “NIC”,
“Node”, “Session”, and “CHAP account”.
5.3.1 NIC
The NIC tab is used to change IP addresses of iSCSI data ports.
Each port must be assigned its own IP address. They need to be configured in in multi-
homed mode, or a present link aggregation / trunking mode. When multiple iSCSI data
ports are set up in link aggregation or trunking mode, all the data ports share a sing le IP
address.
This figure shows four iSCSI data ports on each controller. The four 1GbE data ports are
set up with a static IP address. For the other controllers, that can be set up the same
way.
The options are available on this tab:
OP. -> Link aggregation: The default mode of each ISCSI data
port is that it is individually connected without any link aggregation
and trunking. Trunking and LACP (Link Aggregation Con trol Protocol)
settings can be set or changed by selecting the Link aggregation
option. Select Aggregation method and its options. At least two
iSCSI NICs must be selected for iSCSI bonding to work.
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Trunking: Configures multiple iSCSI data ports in parallel to
increase the link speed beyond the limits of any single port.
LACP: It is part of IEEE specification 802.3ad that allows
several physical ports to be bundled together to form a single
logical channel. This increases the bandwidth and provides
automatically failover when link status fails on a port.
OP. -> Set VLAN ID: VLAN is a logical grouping mechanism
implemented on switch device. VLANs are collections of switching
ports that comprise a single broadcast domain. It allows network
traffic to flow more efficiently within these logical subgroups. Please
consult your network switch user manual for VLAN setting
instructions. Most of the work is done at the switch part. All you
need to do is to make sure that your iSCSI port's VLAN ID matches
that of switch port. If your network environmen t supports VLAN, you
can click Set VLAN ID to change the configurations. Fill in VLAN ID
and Priority settings to enable VLAN.
VLAN ID: VLAN ID is a 12-bit number. Its range is from 2 to
4094, while 0, 1, and 4095 are reserved for special purposes.
Priority: The PCP (Priority Code Point)) is a 3-bit number and
reserved for QoS. The definition comply with IEEE 802.1p
protocol, ranging from 0 to 7, with 0 as the default value. In
normal cases, you don't need to set this value. Using the
default will do just fine.
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TIP: If iSCSI ports are assigned with VLAN ID before creating
aggregation takes place, aggregation will remove VLAN ID. You
need to repeat the steps to set VLAN ID for the aggregation
group.
OP. -> IP settings for iSCSI ports: To change an iSCSI IP
address, click IP settings for iSCSI ports. There are two options:
DHCP or Static. You can select DHCP to acquire and IP address
automatically or Static to set the IP address manually.
OP. -> Become default gateway: The default gateway can be
changed by chicking Become default gateway. There can be only
one default gateway. To remove the default gateway, click OP. of
the LAN that is currently the gateway, and select Remove default
gateway.
OP. -> Enable jumbo frame: The MTU (Maximum Transmission
Unit)) size can be enabled by checking Enable jumbo frame.
Maximum jumbo frame size is 3900 bytes. To disable jumbo frame,
click OP. of the LAN that uses jumbo frame, and select Disable
jumbo frame.
CAUTION: VLAN ID, jumbo frames for both the switching hub
and HBA on host must be enabled. Otherwise, the LAN
connection cannot work properly.
OP. -> Ping host: To verify that the port connection from a target
to the corresponding host data port is good, click Ping host. Enter
the IP address and click Start button. The system sends out six
pings. Or click Stop button to stop the test.
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OP. -> Enable QReplica (visible at the last iSCS I port): Click it
to use the iSCSI port to enable the QReplica function. The
replication data is transferred on this port. Click Disable QReplica
to change the port back to the normal iSCSI port.
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5.3.2 Entity Property
“Entity property” can view the entity name of the system, and setup “iSNS IP” for
iSNS (Internet Storage Name Service). iSNS protocol allows automated discovery,
management and configuration of iSCSI devices on a TCP/IP network. Using iSNS, it
needs to install an iSNS server in SAN. Add an iSNS server IP address into iSNS server
lists in order that iSCSI initiator service can send queries. The entity name can be
changed.
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5.3.3 Node
“Node” can be used to view the target name for iSCSI initiator. There are 32 default
nodes created for each controller.
CHAP:
CHAP is the abbreviation of Challenge Handshake Authorization Protocol. CHAP is a
strong authentication method used in point-to-point for user login. It’s a type of
authentication in which the authentication server sends the client a key to be used for
encrypting the username and password. CHAP enables the username and password to
transmitting in an encrypted form for protection.
To use CHAP authentication, please follow these steps:
1. Select one of 32 default nodes from one controller.
2. Check the gray button of “OP.” column, click “Authenticate”.
3. Select “CHAP”.
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4. Click “OK”.
5. Go to “/ iSCSI configuration / CHAP account” page to create CHAP account.
Please refer to next section for more detail.
6. Check the gray button of “OP.” column , click “User”.
7. Select CHAP user(s) which will be used. It’s a multi opt ion; it can be one or more. If
choosing none, CHAP cannot work.
8. Click “OK”.
9. In “Authenticate” of “OP” page, select “None” to disable CHAP.
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Change portal:
Users can change the portals belonging to the device node of each controller.
1. Check the gray button of “OP.” column next to one device node.
2. Select “Change portal”.
3. Choose the portals for the controller.
4. Click “OK” to confirm.
Rename alias:
User can create an alias to one device node.
1. Check the gray button of “OP.” column next to one device node.
2. Select “Rename alias”.
3. Create an alias for that device node.
4. Click “OK” to confirm.
5. An alias appears at the end of that device node.
NOTE: After setting CHAP, the initiator in host/server should be
set the same CHAP account. Otherwise, user cannot login.
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5.3.4 Session
“Session” can display iSCSI session and connection information, including the
following items:
1. TSIH (target session identifying handle)
2. Host (Initiator Name)
3. Controller (Target Name)
4. InitialR2T( I nitial Ready to Transfer)
5. Immed. data(Immediate data)
6. MaxDataOutR2T(Maximum Data Outstanding Ready to Transfer)
7. MaxDataBurstLen(Maximum Data Burst Length)
8. DataSeginOrder(Data Sequence in Order)
9. DataPDUInOrder(Data PDU in Order)
10. Detail of Authentication status and Source IP: port number.
Move the mouse pointer to the gray button of session number, click “List
connection”. It will list all connection(s) of the session.
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5.3.5 CHAP Account
“CHAP account” is used to manage CHAP accounts for authentication. This iSCSI
RAID subsystem allows creation of many CHAP accounts.
To setup CHAP account, please follow these steps:
1. Click “Create”.
2. Enter “User”, “Secret”, and “Confirm” secret again. “Node” can be selected
here or later. If selecting none, it can be enabled later in “/ iSCSI configuration /
Node / User”.
3. Click “OK”.
4. Click “Delete” to delete CHAP account.
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5.4 Volume Configuration
“Volume configuration” is designed for setting up the volume configuration which
includes “Physical disk”, “RAID group”, “Virtual disk”, “Snapshot”, and
“Logical unit”.
5.4.1 Physical Disk
“Physical disk” can be used to view the status of hard drives in the system. The
following are operational tips:
1. Check the gray button next to the number of slot, it will show the functions which
can be executed.
2. Active function can be selected, and inactive functions show up in gray color and
cannot be selected.
For example, set PD slot number 4 to dedicated spare disk.
Step 1: Check to the gray button of PD 4, select “Set Dedicated spare”, it will link to
next page.
Step 2: Maybe there are some existing RGs which can be assigned dedicate spare
disk. Select which RG will be assigned, then click “Submit”.
Step 3: Done. View “Physical disk” page.
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Physical Disk:
Physical disks in slot 1, 2, 3 are created for a RG named “RG-R5”. Slot 4 is set as
dedicated spare disk of the RG named “RG-R5”. The others are free disks.)
Step 4: The unit of size can be changed from (GB) to (MB). It will display the capacity of
hard drive in MB.
PD column description:
Slot
The position of hard drives. The button next to the
number of slot shows the functions which can be
executed.
Size (GB) Capacity of hard drive.
RG Name Related RAID group name.
Status The status of hard drive:
“Online” the hard drive is online.
“Rebuilding” the hard drive is being rebuilt.
“Transition” the hard drive is being migrated or
is replaced by another disk when rebuilding occurs.
“Scrubbing” the hard drive is being scrubbed.
Health The health of hard drive.
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“Good” the hard drive is good.
“Failed” the hard drive is failed.
“Error Alert” S.M.A.R.T. error alert.
“Read Errors” the hard drive has unrecoverable read
errors.
Usage The usage of hard drive:
“RAID disk”
T
his hard drive has been set to
a RAID group.
“Free disk” This hard drive is free for use.
“Dedicated spare” This hard drive has been set
as dedicated spare of a RG.
“Global spare”
T
his hard drive has been set as
global spare of all RGs.
Vendor Hard drive vendor.
Serial Hard drive serial number.
Type Hard drive type.
“SATA” SATA disk.
“SATA2” SATA II disk.
“SAS” SAS disk.
Write cache Hard drive write cache is enabled or disabled.
Standby HDD auto spindown function to save power. The default
value is disabled.
Readahead Readahead function of HDD. Default value is enabled
Command
Queuing
Command Queue function of HDD. Default value is
enabled.
PD operations description:
Set Free disk Make the selected hard drive to be free for use.
Set Global spare Set the selected hard drive to global spare of all RGs.
Set Dedicated
spares
Set hard drive to dedicated spare of selected RGs.
Disk Scrub Scrub the hard drive.
Turn on/off the
indication LED
Turn on the indication LED of the hard drive. Click again
to turn off.
More information Show hard drive detail information.
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5.4.2 RAID Group
“RAID group” can view the status of each RAID group, create, and modify RAID groups. The
following is an example to create a RG.
Step 1: Click “Create”, enter “Name”, choose “RAID level”, click “Select PD” to
select PD, assign the RG’s “Preferred owner”. Then click “OK”. The “Write Cache”
option is to enable or disable the hard drives’ write cache option. The “Standby” option
is to enable or disable the hard drives’ auto spindown function, when this option is
enabled and hard drives have no access after certain period of time, the hard drives
automatically spin down. The “Readahead” option is to enable or disable the read
ahead function. The “Command queuing” option is to enable or disable the hard
drives’ command queue function.
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Step 2: Confirm page. Click “OK” if all setups are correct.
There is a RAID 0 with 4 physical disks, named “RG-R0”. The second RAID group is a
RAID 5 with 3 physical disks, named “RG-R5”
Step 3: Done. View “RAID group” page.
RG column description:
The button includes the functions which can be excuted.
Name RAID group name.
Total(GB)(MB) Total capacity of this RAID group. The unit can be
displayed in GB or MB.
Free(GB) (MB) Free capacity of this RAID group. The unit can be
displayed in GB or MB.
#PD The number of physical disks in RAID group.
#VD The number of virtual disks in RAID group.
Status The status of RAID group.
“Online” the RAID group is online.
“Offline” the RAID group is offline.
“Rebuild” the RAID group is being rebuilt.
“Migrate” the RAID group is being migrated.
“Scrubbing” the RAID group is being scrubbed.
Health The health of RAID group.
“Good” the RAID group is good.
“Failed” the hard drive is failed.
“Degraded” the RAID group is not completed. The
reason could be lack of one disk or disk failure.
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RAID The RAID level of the RAID group.
Current owner The owner of the RAID group. Please refer to next
chapter for details.
Preferred owner The preferred owner of the RAID group. The default
owner is controller 1.
RG operations description:
Create
Create a RAID group.
Migrate
Change the RAID level of a RAID group. Please refer to
next chapter for details.
Move
Move the member disks of RAID group to totally
different physical disks.
Activate
Activate a RAID group; it can be executed when RG
status is offline. This is for online roaming purpose.
Deactivate
Deactivate a RAID group; it can be executed when RG
status is online. This is for online roaming purpose.
Parity Check
Regenerate parity for the RAID group. It supports RAID
3 / 5 / 6 / 30 / 50 / 60.
Delete
Delete a RAID group.
Set preferred
owner
Set the RG ownership to the other controller.
Set disk property Change the disk property of write cache and standby
options.
Write cache:
“Enabled” Enable disk write cache. (Default)
“Disabled” Disable disk write cache.
Standby:
“Disabled” Disable auto spindown. (Default)
“30 sec / 1 min / 5 min / 30 min” Enable
hard drive auto spindown to save power when no
access after certain period of time.
Read ahead:
“Enabled” Enable disk read ahead. (Default)
“Disabled” Disable disk read ahead.
Command queuing:
“Enabled” Enable disk command queue.
(Default)
“Disabled” Disable disk command queue.
More information
Show RAID group detail information.
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5.4.3 Virtual Disk
“Virtual disk” can view the status of each Virtual disk, create, and modify virtual disks.
The following is an example to create a VD.
Step 1: Click “Create”, enter “Name”, select RAID group from “RG name”, enter
required “Capacity (GB)/(MB)”, change “Stripe height (KB)”, change “Block size
(B)”, change “Read/Write” mode, set virtual disk “Priority”, select “Bg rate”
(Background task priority), and change “Readahead” option if necessary. “Erase”
option will wipe out old data in VD to prevent that OS recognizes the old partit ion. There
are three options in “Erase”: None (default), erase first 1GB or full disk. Last, select
“Type” mode for normal or clone usage. Then click “OK”.
Step 2: Confirm page. Click “OK” if all setups are correct.
Create a VD named “VD-01”, from “RG-R0”. The second VD is named “VD-02”, it’s
initializing.
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Step 3: Done. View “Virtual disk” page.
VD column description:
The button includes the functions which can be executed.
Name Virtual disk name.
Size (GB)
(MB)
Total capacity of the virtual disk. The unit can be displayed
in GB or MB.
Right The right of virtual disk:
“WT” Write Through.
“WB” Write Back.
“RO” Read Only.
Priority The priority of virtual disk:
“HI” HIgh priority.
“MD” MiDdle priority.
“LO” LO w priority.
Bg rate Background task priority:
“4 / 3 / 2 / 1 / 0” Default value is 4. The higher
number the background priority of a VD is, the more
background I/O will be scheduled to execute.
Status The status of virtual disk:
“Online” The virtual disk is online.
“Offline” The virtual disk is offline.
“Initiating” The virtual disk is being initialized.
“Rebuild” The virtual disk is being rebuilt.
“Migrate” The virtual disk is being migrated.
“Rollback” The virtual disk is being rolled back.
“Scrubbing” The virtual disk is being scrubbed.
“Parity checking” The virtual disk is being parity
check.
Type The type of virtual disk:
“RAID” the virtual disk is normal.
“BACKUP” the virtual disk is for clone usage.
Clone The target name of virtual disk.
Schedule The clone schedule of virtual disk:
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Health The health of virtual disk:
“Optimal” the virtual disk is working well and
there is no failed disk in the RG.
“Degraded” At least one disk from the RG of the
Virtual disk is failed or plugged out.
“Failed” the RAID group disk of the VD has single
or multiple failed disks than its RAID level can recover
from data loss.
“Partially optimal” the virtual disk has
experienced recoverable read errors.
R %
Ratio (%) of initializing or rebuilding.
RAID RAID level.
#LUN Number of LUN(s) that virtual disk is attached to.
Snapshot
(GB) (MB)
The virtual disk size that is used for snapshot. The number
means “Used snapshot space” / “Total snapshot
space”. The unit can be displayed in GB or MB.
#Snapshot Number of snapshot(s) that have been taken.
RG name The RG name of the virtual disk
VD operations description:
Create Create a virtual disk.
Extend Extend a Virtual disk capacity.
Parity check Execute parity check for the virtual disk. It supports
RAID 3 / 5 / 6 / 30 / 50 / 60.
Regenerate parity:
“Yes” Regenerate RAID parity and write.
“No” Execute parity check only and find
mismatches. It will stop checking when mismatches
count to 1 / 10 / 20 / … / 100.
Delete Delete a Virtual disk.
Set property Change the VD name, right, priority, bg rate and read
ahead.
Right:
“WT” Write Through.
“WB” Write Back. (Default)
“RO” Read Only.
Priority:
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“HI” HIgh priority. (Default)
“MD” MiDdle priority.
“LO” LO w priority.
Bg rate:
“4 / 3 / 2 / 1 / 0” Default value is 4. The
higher number the background priority of a VD is,
the more background I/O will be scheduled to
execute.
Read ahead:
“Enabled” Enable disk read ahead. (Default)
“Disabled” Disable disk read ahead.
AV-media mode:
“Enabled” Enable AV-media mode for optimizing
video editing.
“Disabled” Disable AV-media mode. (Default)
Type:
“RAID” the virtual disk is normal. (Default)
“Backup” the virtual disk is for clone usage.
Attach LUN Attach to a LUN.
Detach LUN Detach to a LUN.
List LUN List attached LUN(s).
Set Clone Set the target virtual disk for clone.
Clear Clone Clear clone function.
Start Clone Start clone function.
Stop Clone Stop clone function.
Schedule Clone Set clone function by schedule.
Set snapshot
space
Set snapshot space for executing snapshot. Please refer
to next chapter for more detail.
Cleanup
snapshot
Clean all snapshot VD related to the Virtual disk and
release snapshot space.
Take snapshot Take a snapshot on the Virtual disk.
Auto snapshot Set auto snapshot on the Virtual disk.
List snapshot List all snapshot VD related to the Virtual disk.
More
information
Show Virtual disk detail information.
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