Infortrend EonStor DS S12 Series User manual

Infortrend
Infortrend EonStor DS
S12/ S16/ S24 Series
Hardware Manual
Version 1.1 (July, 2011)

Copyright Notice
Copyright Notice
All rights reserved. This publication may not be reproduced, transmitted, transcribed,
stored in a retrieval system, or translated into any language or computer language, in
any form or by any means, electronic, mechanical, magnetic, optical, chemical,
manual or otherwise, without the prior written consent of Infortrend Technology, Inc.
Disclaimer
Infortrend Technology makes no representations or warranties with respect to the
contents hereof and specifically disclaim any implied warranties of merchantability or
fitness for any particular purpose. Furthermore, Infortrend Technology reserves the
right to revise this publication and to make changes from time to time in the content
hereof without obligation to notify any person of such revisions or changes. Product
specifications are also subject to change without prior notice.
Trademarks
Infortrend, the Infortrend logo, SANWatch and EonStor are registered trademarks of
Infortrend Technology, Inc. Other names prefixed with “IFT” and “ES” are trademarks
of Infortrend Technology, Inc.
Microsoft Windows and Windows are registered trademarks of Microsoft
Corporation.
Solaris and Java are trademarks of Sun Microsystems, Inc.
All other names, brands, products or services are trademarks or registered
trademarks of their respective owners.
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Safety Precautions
3
Safety Precautions
Read these instructions carefully before you install, operate, or transport the EonStor
DS RAID system and JBODs.
Installation and Operation
Install the rack cabinet and the associated equipment at a site where the ambient
temperature stays lower than 40C.
Install the power source socket outlet near the enclosure where it is easily
accessible and ground the rack cabinet.
Secure airflow clearance inside and around the rack cabinet.
- Secure an 18 to 20cm clearance on the rear side.
- Do not cover the enclosure openings.
- Route the cables inside the rack cabinet.
- Do not leave the drive bays empty, since it will affect the airflow efficiency.
Secure each enclosure module using its retaining screws.
Put the power cords and other cables away from foot traffic. Do not place stuff
over the power cords and make sure they do not rest against data cables.
Install all modules to the enclosure before powering the EonStor DS series.
Ensure that the correct power range is being used before powering the device.
None of the covers or replaceable modules should be removed during operation.
If the enclosure is not used for a long time, disconnect it from mains to avoid
transient over-voltage.
For power source redundancy, please make sure that the two PSUs are plugged
into two different power sources (ie. to different circuit breakers).

Service and Maintenance
Service and Maintenance
Keep the faulty module in place until you have a replacement unit in hand; an
empty module greatly affects the airflow efficiency within the enclosure.
During service operation, place the enclosure on soft and clean surface to
prevent damaging its exterior. Do not place power tools or other items on top.
When transporting the enclosure, repackage all disk drives separately in the
original package foam blocks. Replaceable modules can stay in the enclosure if
you are using the original package; if not, repackage them separately as well.
Disconnect the power cords before servicing or cleaning the enclosure.
Use a slightly moistened paper sheet or cloth for cleaning. Avoid using liquid or
sprayed detergent.
When replacing components, insert them as gently as possible while assuring full
engagement. Vibration and shock can easily damage hard drives.
Only qualified service personnel should open the enclosure.
Contact service personnel if any of the following situations occurs:
- The power cord or plug is damaged.
- The enclosure has been exposed to moisture.
- The system has not been working properly.
- The enclosure was dropped against a hard surface.
- The enclosure shows obvious signs of breakage.
To move the enclosure, more than one person might be necessary due to its
weight. Drives should be removed from the enclosure beforehand.

ESD Precautions
ESD Precautions
Handle the modules by their retention screws, ejector levers, or the module’s
metal frame/faceplate only. Avoid touching the PCB boards or connector pins.
Use a grounded wrist strap and an anti-static work pad to discharge static
electricity when installing or operating the enclosure.
Avoid dust, debris, carpets, plastic, vinyl, and styrofoam in your work area.
Do not remove any module or component from its anti-static bag before
installation takes place.
Drives must not be stacked on top of each other without their protective drive
trays. Even when drives are fixed in the drive trays, contacting the exposed PCB
or rear-side interface may damage the drives.

Table of Contents
Table of Contents
Copyright Notice....................................................................................................................2
Safety Precautions.................................................................................................................3
Table of Contents...................................................................................................................6
About This Manual.................................................................................................................9
1Introduction
1.1 Product Overview.....................................................................................................10
1.1.1 Model Naming Conventions .............................................................................. 10
1.1.2 Model Variations ............................................................................................... 11
1.1.3 Major Components............................................................................................ 13
1.1.4 S12 vs S16 vs S24 Series Rear Panel.............................................................. 14
1.2 Chassis......................................................................................................................17
1.2.1 Front Panel ....................................................................................................... 17
1.2.2 Rear Panel........................................................................................................ 18
1.2.3 Internal Backplane ............................................................................................ 21
1.3 Front Panel Components.........................................................................................22
1.3.1 LCD/LED Panel................................................................................................. 22
1.3.2 Chassis Ear ...................................................................................................... 24
1.3.3 Drive Tray ......................................................................................................... 24
1.4 Rear Panel Components..........................................................................................26
1.4.1 Controller Module of RAID Models.................................................................... 26
1.4.2 Controller Module of JBOD Models................................................................... 28
1.4.3 Host Port of RAID Models................................................................................. 29
1.4.4 CBM (Cache Backup Module) for RAID Models ............................................... 34
1.4.5 S12x-Gxxxx Models PSU (Power Supply Unit)................................................. 37
1.4.6 S12x-Rxxxx Models and S16 RAID Series PSU (Power Supply Unit) .............. 38
1.4.7 S24 RAID Series PSU ...................................................................................... 38
1.4.8 S12 and S16 RAID Series Cooling Module....................................................... 39
1.4.9 S24 RAID Series Cooling Module ..................................................................... 40
1.5 System Monitoring Features ...................................................................................41
1.5.1 Expansion Enclosure Support........................................................................... 41
1.5.2 I2C bus ............................................................................................................. 42
1.5.3 Firmware (FW) and SANWatch......................................................................... 42
1.5.4 Audible Alarms .................................................................................................. 42
1.6 Hot-swapping............................................................................................................43
2Hardware Installation
2.1 Installation Prerequisites.........................................................................................44
2.2 Installation Procedures Overview...........................................................................45
2.3 Unpacking the Subsystem.......................................................................................46
2.3.1 Box contents ..................................................................................................... 46
2.3.2 Preinstalled Components .................................................................................. 46
2.3.3 Components to Be Installed.............................................................................. 47
2.4 Hard Drive Installation .............................................................................................47
2.4.1 Hard Drive Installation Prerequisites ................................................................. 47
2.4.2 Placing Hard Drive into Drive Tray .................................................................... 50
2.4.3 Inserting Hard Drive into Drive Tray .................................................................. 51
2.5 CBM Installation for RAID Models...........................................................................52
2.5.1 Warnings and Precautions ................................................................................ 52
2.5.2 Removing the RAID Controller.......................................................................... 53
2.5.3 Installing the BBU ............................................................................................. 53
2.5.4 Installing the FBM ............................................................................................. 54
2.5.5 Inserting the RAID Controller ............................................................................ 55
3System Connection
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Table of Contents
3.1 General Considerations on Making Connections..................................................56
3.1.1 Host-Side Topologies ........................................................................................ 57
3.1.2 Host-Side Parameters....................................................................................... 57
3.1.3 Maximum Concurrent Host LUN Connection (“Nexus” in SCSI) ....................... 58
3.1.4 Maximum Queued I/O Count ............................................................................ 59
3.2 Fibre-Host RAID Connections.................................................................................59
3.2.1 Fibre-Host Components .................................................................................... 60
3.2.2 Fibre-Host Topologies ....................................................................................... 61
3.2.3 Fibre Cabling..................................................................................................... 62
3.2.4 Simple End-to-End Connection......................................................................... 64
3.2.5 DAS (Direct-Attached) Connection ................................................................... 65
3.2.6 Switched Fabric Connection (Dual-Controller) .................................................. 66
3.2.7 Switched Fabric Connection (Single-Controller) ............................................... 68
3.3 SAS-Host RAID Connections ..................................................................................70
3.3.1 SxxS-R/G2240-4 Controllers in DAS (Direct-Attached Storage) Configuration .71
3.3.2 DAS (Direct-Attached Storage) Connection with Redundant Host Path............ 74
3.3.3 DAS (Direct-Attached Storage) Connection to Two Servers ............................. 76
3.4 iSCSI-Host RAID Connections ................................................................................77
3.4.1 Network & Host Connection Topologies ............................................................ 77
3.4.2 High Availability IP SAN with Redundant RAID Controller ................................ 79
3.4.3 Single-Controller with Fault-Tolerant Path......................................................... 81
3.4.4 High Availability IP SAN (Remote Replication Enabled).................................... 82
3.4.5 High Availability IP SAN with Port Trunk (Remote Replication Enabled)........... 84
3.4.6 Single-Controller with Trunk .............................................................................. 86
3.5 Hybrid Host Connections ........................................................................................87
3.5.1 Single Hybrid Unit Connected to FC/iSCSI Hosts ............................................. 87
3.5.2 Utilizing Hybrid iSCSI ports for Data Replication............................................... 88
3.6 JBOD Connections...................................................................................................89
3.6.1 Expansion Links................................................................................................ 90
3.6.2 SAS Expansion Configuration........................................................................... 92
3.6.3 Configuration Rules .......................................................................................... 94
3.7 Management Console Connections........................................................................96
3.8 Power Connections..................................................................................................97
3.8.1 Checklist ........................................................................................................... 97
3.8.2 Connecting Power Cords .................................................................................. 98
3.8.3 Power On Procedure ...................................................................................... 100
3.8.4 Power On Status Check.................................................................................. 100
3.8.5 LCD Screen .................................................................................................... 102
3.8.6 Power Off Procedure ...................................................................................... 103
4System Monitoring
4.1 Monitoring Features...............................................................................................104
4.2 Front Panel..............................................................................................................106
4.2.1 LCD Keypad for RAID Models ........................................................................ 106
4.2.2 LED Panel for JBOD Models........................................................................... 109
4.2.3 Drive Tray LED................................................................................................ 111
4.3 Controller LED........................................................................................................112
4.3.1 Controller LED for RAID Models ..................................................................... 112
4.3.2 Controller LED for JBOD Models .................................................................... 114
4.3.3 Restore Default LED for RAID Models............................................................ 115
4.3.4 Ethernet Management Port LED for RAID Models.......................................... 115
4.3.5 Fibre-Host Port LED for FC RAID Models....................................................... 116
4.3.6 SAS-Host Port LED for SAS RAID Models ..................................................... 117
4.3.7 iSCSI-Host Port LED for iSCSI RAID Models ................................................. 118
4.4 PSU LED..................................................................................................................119
4.4.1 S12x-Rxxx Models and S16 RAID Power Supply Unit LED............................ 119
4.4.2 S12x-Gxxxx Models and S24 RAID Power Supply LED ................................. 120
4.4.3 S12x-Rxxxx Models and S16 RAID System Cooling Module LED.................. 121
4.4.4 S12x-Gxxxx Models RAID System Cooling Module LED................................ 121
4.4.5 S24 RAID System Cooling module LED ......................................................... 122
4.5 Alarms and I2C Bus................................................................................................122
4.5.1 Audible Alarms ................................................................................................ 122
4.5.2 I2C................................................................................................................... 123
4.6 Restoring Default System Settings.......................................................................123
4.6.1 Restoring Default Settings for Dual-Controller Models.................................... 123
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Table of Contents
4.6.2 Restoring Default Settings for Single-Controller Models ................................. 125
5System Maintenance
5.1 Replacing the Controller Module(s): Single / Dual / Simultaneous Upgrade.....127
5.2 Replacing the Memory Module for RAID Models.................................................129
5.3 Replacing the CBM for RAID Models....................................................................130
5.3.1 BBU Fault Conditions and Precautions........................................................... 131
5.3.2 Replacing the BBU.......................................................................................... 131
5.3.3 Replacing the FBM ......................................................................................... 132
5.4 Replacing the Power Supply Module....................................................................133
5.4.1 Detecting a Failed PSU................................................................................... 133
5.4.2 Replacing the PSU on S12x-Rxxxx Models and S16 RAID Systems.............. 134
5.4.3 Replacing the PSU on S12x-Gxxxx Models.................................................... 136
5.4.4 Replacing the PSU on S24 RAID System....................................................... 138
5.5 Replacing a Cooling Module .................................................................................141
5.5.1 For S12x-Rxxxx Models and S16 series ......................................................... 141
5.5.2 For S12x-Gxxxx Models.................................................................................. 142
5.5.3 For S24 series................................................................................................. 143
5.6 Replacing a Hard Disk Drive..................................................................................144
5.7 Replacing the Enclosure........................................................................................147
5.7.1 Differential Diagnosis to Determine Backplane Failure ................................... 147
5.7.2 Enclosure Replacement Must Knows ............................................................. 148
5.7.3 Enclosure Replacement Procedure ................................................................ 148
6Appendix
6.1 Technical Specifications........................................................................................151
6.1.1 Host/Drive Interface ........................................................................................ 151
6.1.2 RAID Configurations for RAID Models ............................................................ 152
6.1.3 Fault Tolerance for RAID models .................................................................... 153
6.1.4 Power Supply.................................................................................................. 153
6.1.5 Dimensions ..................................................................................................... 154
6.1.6 Environment.................................................................................................... 155
6.2 Pinouts ....................................................................................................................155
6.2.1 4Gb/s and 8Gb/s FC Port Pinouts for Fibre-Host RAID Models...................... 156
6.2.2 SAS Host Port Pinouts for SAS-Host RAID Models ........................................ 157
6.2.3 GbE Ethernet Port Pinouts for iSCSI-Host RAID Models................................ 157
6.2.4 DB-9 Serial Port & Cable for RAID Models ..................................................... 158
6.2.5 Ethernet Management Port Pinouts for RAID Models..................................... 159
6.2.6 SAS Expansion Port Pinouts........................................................................... 159
6.2.7 STP Ethernet Cable (Optional Accessory: Fibre-Host RAID Models) ............. 160
6.3 Certifications ..........................................................................................................161
6.3.1 Summary ........................................................................................................ 161
6.3.2 Declarations .................................................................................................... 162
6.4 Contact Information ...............................................................................................164
6.4.1 Customer Support........................................................................................... 164
6.4.2 Sales Office..................................................................................................... 165
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About This Manual
9
About This Manual
This manual introduces the hardware components of EonStor DS S12/ S16/ S24
RAID subsystem and JBOD. It also describes the procedures on how to install,
monitor, and maintain them.
For the following subjects, consult other resources for more information:
Components that are not user-serviceable: Contact our support sites. See 6.4
Contact Information.
Firmware operation: Consult the Firmware User Manual in the CD-ROM.
Software (SANWatch) operation: Consult the SANWatch User Manual in the
CD-ROM.
Revision History
Version Date Description
1.0 June, 2011 Initial release
1.1 July, 2011 Added S16E-R1140-4

EonStor DS S12/S16/S24 Series Hardware Manual
1 Introduction
1.1 Product Overview
This chapter introduces the EonStor DS S12/ S16 /S24 series, RAID/JBOD system
supporting, 3Gb/s, 6Gb/s SAS or Serial ATA (3Gbps SATA-II) drive interface. The 2U/
3U/ 4U enclosure is designed to contain twelve, sixteen and twenty-four 3.5” disk
drives, respectively. Drive capacity can be expanded by attaching drive enclosures
(JBODs).
1.1.1 Model Naming Conventions
The model names can be broken down by the example shown below.
S12 models:
RAID: S12F-Rxxxx S(A) + 12(B) + F(C) + R(D) + xxxx
JBOD: S12S-JxxxxR S(A) + 12(B) + S(C) + J(E) + xxxx + R(D)
(A) Drive-side interface: S = SAS-2
(B) Number of hard drive bays: 12
(C) Host-side interface:
F= Fibre or hybrid Fibre/ iSCSI
E= iSCSI
S= SAS or hybrid SAS/ iSCSI
(D) Number of controllers:
R= redundant (dual)
S= single and upgradable to dual controller
G= single and NOT upgradable to dual controller
(E) “J” stands for JBOD.
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EonStor DS S12/S16/S24 Series Hardware Manual
1.1.2 Model Variations
The EonStor DS S12/S16/S24 series is comprised of RAID models, which store hard
drives as well as controls the entire storage system, and JBOD models, they connect
to a master RAID and expand the storage system by adding more hard drives.
Fibre Host RAID Series
SAS Host RAID Series
Model name Host Drive Speed Controller
S12S-G2240 SAS SAS-2/SATA-II 6Gb/s Single
S12S-R2240 SAS SAS-2/SATA-II 6Gb/s Dual
S12S-G2240-4 SAS SAS-2/SATA-II 6Gb/s Single
S12S-R2240-4 SAS SAS-2/SATA-II 6Gb/s Dual
S16S-G1030 SAS SAS-2/SATA-II 3Gb/s Single
S16S-R1030 SAS SAS-2/SATA-II 3Gb/s Dual
S16S-G2240 SAS SAS-2/SATA-II 6Gb/s Single
S16S-R2240 SAS SAS-2/SATA-II 6Gb/s Dual
S16S-G2240-4 SAS SAS-2/SATA-II 6Gb/s Single
S16S-R2240-4 SAS SAS-2/SATA-II 6Gb/s Dual
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EonStor DS S12/S16/S24 Series Hardware Manual
S16S-G2242-4 SAS +
iSCSI SAS-2/SATA-II 6Gb/s + 1Gb/s Single
S16S-R2242-4 SAS +
iSCSI SAS-2/SATA-II 6Gb/s + 1Gb/s Dual
S24S-G2240 SAS SAS-2/SATA-II 6Gb/s Single
S24S-G2240-4 SAS SAS-2/SATA-II 6Gb/s Single
iSCSI Host RAID Series
Model name Host Drive Speed Controller
S12E-G1140 iSCSI SAS-2/SATA-II 1Gb/s Single
S12E-R1140-4 iSCSI SAS-2/SATA-II 1Gb/s Dual
S12E-G2140 iSCSI SAS-2/SATA-II 1Gb/s Single
S12E-R2140 iSCSI SAS-2/SATA-II 1Gb/s Dual
S12E-G2140-4 iSCSI SAS-2/SATA-II 1Gb/s Single
S16E-G1140 iSCSI SAS-2/SATA-II 1Gb/s Single
S16E-R1140-4 iSCSI SAS-2/SATA-II 1Gb/s Dual
S16E-G2142 iSCSI SAS-2/SATA-II 1Gb/s Single
S16E-R2142 iSCSI SAS-2/SATA-II 1Gb/s Dual
S16E-G2240 iSCSI SAS-2/SATA-II 10Gb/s Single
S16E-R2240 iSCSI SAS-2/SATA-II 10Gb/s Dual
S24E-G2142 iSCSI SAS-2/SATA-II 1Gb/s Single
JBOD Series
Model name Host Drive Speed Controller
S12S-J1000-G SAS SAS-2/SATA-II 3Gb/s Single
S12S-J1000-R SAS SAS-2/SATA-II 3Gb/s Dual
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EonStor DS S12/S16/S24 Series Hardware Manual
S12S-J1002-R SAS SAS-2/SATA-II 3Gb/s Dual
S12S-J2000-G SAS SAS-2/SATA-II 6Gb/s Single
S12S-J2000-R SAS SAS-2/SATA-II 6Gb/s Dual
S16S-J1000-S SAS SAS-2/SATA-II 3Gb/s Single
S16S-J1000-R SAS SAS-2/SATA-II 3Gb/s Dual
S16S-J2000-S SAS SAS-2/SATA-II 6Gb/s Single
S16S-J2000-R SAS SAS-2/SATA-II 6Gb/s Dual
1.1.3 Major Components
NOTE
On receiving and unpacking your subsystem, check the package contents against
the included Unpacking List. If any modules are missing, contact your system
vendor immediately.
RAID Controller and Interface
Each RAID controller comes with a pre-installed DDRII DIMM module. High-capacity
SATA drives are also supported by adding drive enclosures.
The traditional battery backup is replaced by an innovative CBM (Cache Backup
Module) methodology (optional feature in the single controller model), which consists
of a battery backup unit (BBU) and flash backup module (FBM). Cached data is
quickly distributed to a flash backup module with the support of a BBU in the event of
a power outage. Because of a shorter discharge time, BBU life expectancy is
extended, and data is safely kept in flash regardless of the traditional 72 hours
limitation.
The embedded firmware features intelligent algorithms, such as power-saving
modes, variable fan speeds, and exiled drive handling, making this model a greener
choice.
JBOD Controller and Interface
The enclosure is managed by expander controllers that distribute data flow to
individual disk drives and report operating status through a proprietary enclosure
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EonStor DS S12/S16/S24 Series Hardware Manual
service via in-band protocols. The enclosure, along with other JBODs, connects to a
RAID system and serves as a building block of a scalable configuration.
In terms of supported protocols, the firmware supports communications with
enclosure devices, SAS/SATA disk drives and an EonStor DS RAID system featuring
6Gb/s SAS expansion ports.
In terms of physical connection, the SAS interface provides ease of cabling through
SFF-8088: Mini-SAS connectors with 4 PHYs wide links. Each SAS PHY physical
link is capable of 6.0Gbps data rate, respectively. Each expander controller provides
two SAS connectors with 4 PHYs each. With a backplane adapting SAS or SATA
drives, the system supports enterprise-class SAS or cost-effective SATA-II disk
drives, and is ideal for adding large capacity to a storage pool.
Power supply unit with built-in cooling module
S12 and S16 series: Two cooling modules protect the subsystem from overheating,
and two hot-swappable power supply unit (PSU) modules provide constant power to
the subsystem. The modular nature of the subsystem and the easy accessibility to all
major components ensure ease of maintenance.
S24 series: The S24 series PSUs have cooling modules built-in but they do not
serve as the main system cooling modules as is the case with S12 and S16 systems.
The S24 systems have standalone cooling modules situated on both sides of the
controller.
1.1.4 S12 vs S16 vs S24 Series Rear Panel
Dual Controller Models
The rear panels of S12, S16 and S24 series RAID / S12 and S16 JBOD systems
come with dual controller slots. Controller A is located on top and controller B at the
bottom for dual controller models. In dual controller configuration, if one controller
fails, the second controller module will take over in a manner that is transparent to
application servers.
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EonStor DS S12/S16/S24 Series Hardware Manual
The top controller (Controller A) is the primary controller which manages the entire
RAID system in normal operations. The bottom controller (Controller B) is the
secondary (= redundant) controller which is idle during normal operation and takes
over the management role when Controller A cannot function properly due to
hardware error, controller module removal, etc.
If the failed Controller A restarts or a replacement is installed, Controller A will
temporarily assume the role of the secondary controller.
When the RAID subsystem is rebooted, all system configurations revert to the default
state and Controller B returns the primary role to Controller A.
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EonStor DS S12/S16/S24 Series Hardware Manual
Single-Controller Model
Single-controller model comes with one controller module. The second controller slot
is filled with a dummy cage.
If the model name of a single controller RAID/JBOD is designated with the letter “S”,
it can be upgraded into a dual-controller configuration by adding another controller
module and firmware upgrade (see software manual). If the model name is
designated with a “G”, it is not upgradable to a dual controller configuration.
S16S-J2000-S: Upgradable to dual-controller configuration
S12S-J2000G or S12F-G1842 : NOT upgradable to dual-controller model
Connection between RAID and JBOD
There are two principles with the combinations of RAID and JBOD:
Dual-controller RAIDs connects to dual-controller JBODs.
Single-controller RAIDs connects to single-controller JBODs.
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EonStor DS S12/S16/S24 Series Hardware Manual
1.2 Chassis
The EonStor DS series chassis is a rugged storage chassis divided into front and
rear sections. The chassis is designed to be installed into a rack or cabinet. As
shown in the illustration below, the height difference can be clearly seen between
S12, S16 and S24 enclosures. The extra height difference serves no specific
functionality but it does translate into an extra row of hard drive trays when viewed
from the front of the enclosure.
Note:
For manual illustration purposes, we will use a S12 model to demonstrate S12, S16
and S24 front panel components and S12S for JBODs unless specific structural
functionalities exists, it will be stated otherwise!
1.2.1 Front Panel
RAID Models
Drive trays: Each drive tray is hot-swappable and holds a 3.5-inch drive.
LCD keypad panel: A 16 characters x 2 rows LCD panel and function keys
allows you to view system events and configure the firmware.

JBOD Models
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EonStor DS S12/S16/S24 Series Hardware Manual
Drive trays: Each drive tray is hot-swappable and holds a 3.5-inch drive.
LED panel: The LED panel indicates the operating status through five LEDs. A
rotary switch allows you to select the JBOD ID.
1.2.2 Rear Panel
S12x-Gxxxx models
S12x-Rxxxx models
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EonStor DS S12/S16/S24 Series Hardware Manual
S16x-R/Gxxxx models
S24x-R/Gxxxx models
RAID controllers: Each RAID controller module contains a main circuit board
and a pre-installed DIMM module. The host port configurations depend on
product models. For details, see 1.4 Rear Panel Components .
WARNING
Do NOT remove the dummy cage for the single-controller model. Doing so will
disrupt the internal airflow.
CBM (located within the RAID controller module): a CBM, consisting of a
battery backup unit (BBU) and flash backup module, comes as default equipment
for dual controller models. For single controller models, the CBM is an optional
item.
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EonStor DS S12/S16/S24 Series Hardware Manual
Power supply:
S12 & S16: The hot-swappable power supply units (PSUs) provide power to the
subsystem. Power supplies come with a designation 0 for the one on the
left and 1 for the PSU on the right. A power switch can be located on each
PSU.
S24: There are three hot-swappable power supply units to supply power to the
subsystem. The power supplies have a designation of 0 for the one on the
left, 1 for the one in the middle and 2 for the one on the right. A power
switch can be located on right hand side of PSU 1.
Cooling modules:
S12 and S16: The redundant cooling modules ventilate the system and are
embedded in the power supplies.
S24: The cooling modules are user serviceable and are standalone units on
both sides of the controller.
JBOD Models
S12S-J1000 models
S12S-J1002R, S12S-J2000R/G, S16S-J1000R/G
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