iStarUSA iAge820-iSCSI User manual

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iAge820-iSCSI
mAge208U20-iSCSI
mAge316U20-iSCSI
iSCSI GbE to SATA II RAID Storage
User Manual

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Preface
About this manual
This manual is the introduction of iStarUSA’s Tower and 2U/3U rackmount
iSCSI GbE Raid Storage Solution and it aims to help users know the
operations of the disk array system easily. Information contained in this
manual has been reviewed for accuracy, but not for product warranty because
of the various environments/OS/settings, Information and specification will be
changed without further notice. For any update information, please visit
www.istarusa.com and your contact windows.
Thank you for using iStarUSA, Inc. products; if you have any
question, please e-mail to “ [email protected] ”. We will answer your
question as soon as possible.
Product Description
Panel layout 1. Power LED
2. Mute Button
Reset for Buzzer Beeping
3. Temperature LED
Normal – Green;
Fail – Red (too slow rpm or
stop)

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4. Fan Status LED
Normal – Green; Over
55°C – Red
5. LCM
6. Back (Control button)
7. Up (Control button)
8. Enter (Control button)
9. Down (Control button)
10. HDD Power LED
11. HDD Status LED
12. Power Cord Receptacle
*CH 0, CH 1
Gigabit Ethernet ports
*RJ 45
Ethernet port for management
*RS 232
Consol port
Disk Installation
Install each Hard Drive into the Drive Trays and fasten using the supplied HDD screws.
System Connection

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1. Connect CH0, CH1 to GbE switching ports for data transmission.
2.. Connect RJ45 to Ethernet port for management.

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Table of Contents
1.1 Features...........................................................................7
1.2 Terminology.....................................................................8
1.3 RAID levels....................................................................10
1.4 Volume relationship diagram..........................................12
Chapter 2 Getting started.............................................13
2.1 Before starting................................................................13
2.2 iSCSI introduction ..........................................................13
2.3 Management methods ...................................................15
2.3.1 Web GUI......................................................................................... 16
2.3.2 Remote control – secure shell........................................................ 16
2.4 Enclosure.......................................................................17
2.4.1 LCM................................................................................................ 17
2.4.2 System buzzer................................................................................ 20
2.4.3 LED ................................................................................................ 20
Chapter 3 Web GUI guideline.......................................22
3.1 Web GUI hierarchy ........................................................22
3.2 Login..............................................................................23
3.3 Quick install....................................................................24
3.4System configuration .....................................................26
3.4.1 System name................................................................................. 27
3.4.2 IP address...................................................................................... 27
3.4.3 Language ....................................................................................... 28
3.4.4 Login config.................................................................................... 28
3.4.5 Password........................................................................................ 29
3.4.6 Date................................................................................................ 29
3.4.7 Mail................................................................................................. 30
3.4.8 SNMP............................................................................................. 31
3.4.9 Messenger...................................................................................... 32
3.4.10 System log server........................................................................... 32
3.4.11 Event log ........................................................................................ 33
3.5 iSCSI config...................................................................34
3.5.1 Entity property ................................................................................ 35
3.5.2 NIC................................................................................................. 35
3.5.3 Node............................................................................................... 36
3.5.4 Session........................................................................................... 38
3.5.5 CHAP account................................................................................ 39

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3.6 Volume configuration .....................................................39
3.6.1 Physical disk................................................................................... 40
3.6.2 Volume group................................................................................. 43
3.6.3 User data volume ........................................................................... 45
3.6.4 Cache volume ................................................................................ 47
3.6.5 Logical unit number........................................................................ 48
3.6.6 Example ......................................................................................... 50
3.7 Enclosure management.................................................60
3.7.1 SES configuration........................................................................... 61
3.7.2 Hardware monitor........................................................................... 62
3.7.3 Hard drive S.M.A.R.T. support ....................................................... 63
3.8System maintenance .....................................................64
3.8.1 Upgrade.......................................................................................... 65
3.8.2 Info ................................................................................................. 65
3.8.3 Reset to default .............................................................................. 66
3.8.4 Config import & export.................................................................... 66
3.8.5 Shutdown ....................................................................................... 67
3.9Logout............................................................................67
Chapter 4 Advanced operation....................................68
4.1 Rebuild...........................................................................68
4.2VG migration and expansion..........................................70
4.3 UDV Extension...............................................................73
4.4 Disk roaming..................................................................74
4.5 Support Microsoft MPIO and MC/S................................74
Appendix............................................................................76
A. Certification list...............................................................76
B. Event notifications..........................................................78
C. Known issues.................................................................84
D. Microsoft iSCSI Initiator..................................................84
E. Installation steps for large volume (TB)..........................86
F. MPIO and MC/S setup instructions................................91

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Chapter 1 RAID introduction
1.1 Features
iStarUSA iSCSI series is a high-performance RAID solution including the
following Models
oiAge820-iSCSI : Desktop 8 bay iSCSI(Host) to SATA II (Disk) Raid Storage
o
mAge208U20-iSCSI : 2U-8 bay iSCSI (Host) to SATA II (Disk) Raid Storage
o
mAge316U20-iSCSI : 3U-16 bay iSCSI (Host) to SATA II (Disk) Raid Storage
iStarUSA iSCSI storage solution features:
•Front-end 2 ports GbE NIC ports with load-balancing & fail-over for
high availability.
•iSCSI jumbo frame support.
•RAID 0, 1, 0+1, 3, 5, 6, 50, 60, & JBOD ready.
•SATA II drive backward-compatible.
•One logic volume can be shared by as many as 32 hosts.
•Host access control.
•Configurable N-way mirror for high data protection.
•On-line volume migration with no system down-time.
•HDD S.M.A.R.T. enabled for SATA drives.
•Global/dedicated cache configurable by volume.
With proper configuration, iStarUSA product can provide non-stop service with
a high degree of fault tolerance by using RAID technology and advanced
array management features. Should you have any question, please feel free
to contact your local sales representative or directly send email to
iSCSI GbE enclosure connects to the host system via iSCSI interface. It can
be configured to any RAID level. The controller provides reliable data
protection for servers and RAID 6. RAID 6 allows two HDD failures without
producing any impact on the existing data. Data can be recovered from the
existing data and parity drives. (Data can be recovered from the rest
disks/drives.)
[email protected]

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iStarUSA’s iSCSI solution is the most cost-effective disk array controller with
completely integrated high-performance and data-protection capabilities which
meet or exceed the highest industry standards, and the best data solution
for small/medium business (SMB) users.
1.2 Terminology
The document uses the following terms:
RAID RAID is the abbreviation of “Redundant Array of Independent
Disks”.There are different RAID levels with different degree
of the data protection, data availability, and performance to
host environment.
PD The Physical Disk belongs to the member disk of one specific
volume group.
VG Volume Group. A collection of removable media. One VG
consists of a set of UDVs and owns one RAID level attribute.
UDV
User Data Volume. Each VG could be divided into several
UDVs. The UDVs from one VG share the same RAID level,
but may have different volume capacity.
CV
Cache Volume. Controller uses onboard memory as cache.
All RAM (except for the part which is occupied by the
controller) can be used as cache.
LUNLogical 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 width,
RAID copy, RAID width, copy and row are used to describe one VG.
E.g.:

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RAID row
(RAID cell in
one row)
1. One 4-disk RAID 0 volume: RAID width= 4; RAID
copy=1; RAID row=1.
2. One 3-way mirroring volume: RAID width=1; RAID
copy=3; RAID row=1.
3. One RAID 10 volume over 3 4-disk RAID 1 volume:
RAID width=1; RAID copy=4; RAID row=3.
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
the 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 VG. Others could not use these dedicated spare
disks for any rebuilding purpose.
GS Global Spare disks. GS is shared for rebuilding purpose. If
some VGs 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.
DC Dedicated Cache.
GC Global Cache.
DG DeGraded mode. Not all of the array’s member disks are
functioning, but the array is able to respond to application

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read and write requests to its virtual disks.
SCSI Small Computer Systems Interface.
iSCSI Internet Small Computer Systems Interface.
S.M.A.R.T. Self-Monitoring Analysis and Reporting Technology.
WWN World Wide Name.
HBAHost Bus Adapter.
SAF-TE SCSI Accessed Fault-Tolerant Enclosures.
NIC Network Interface Card.
LACPLink Aggregation Control Protocol.
MPIOMulti-Path Input/Output.
MC/S Multiple Connections per Session
MTU Maximum Transmission Unit.
CHAPChallenge Handshake Authentication Protocol. An optional
security mechanism to control access to an iSCSI storage
system over the iSCSI data ports.
iSNSInternet Storage Name Service.
1.3 RAID levels
RAID 0 Disk striping. RAID 0 needs at least one hard drive.