Gateway E-842R SAS RAID
USERGUIDE
®
Contents
Chapter 1: Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Expansion enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 The enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Enclosure chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Operator’s panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
The plug-in modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 AC power supply module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Cooling module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Controller module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Battery module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Disk I/O module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Drive carrier module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Dummy carrier modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Blank modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Chapter 2: Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Planning your installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Enclosure drive bay numbering convention . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Drive carrier configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Enclosure installation procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Preparing the site and host server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Unpacking the enclosure system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Rack installation prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Rack installation procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Module installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Enclosure configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Enclosure cabling - single enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Ethernet connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Enclosure cabling - multiple enclosures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Drive slot arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Drive location rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Power cord connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Grounding checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Management interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 StorView Storage Management software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 VDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Chapter 3: Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Before you begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Power on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Power supply module LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Ops panel LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Controller module LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Cooling module LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
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Contents
Disk I/O module LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37 Starting the drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37 Disk drive LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37 Starting StorView . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37 Power down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Chapter 4: Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40 Initial start-up problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40 Status indicator LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41 Power supply module LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41 Cooling Module LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41 Ops panel LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42 Controller module LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43 Disk I/O module LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43 Drive carrier LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Audible alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43 Audible alarm mute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44 Drive carrier module faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44 Auto start failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45 System faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45 Power supply faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45 Thermal control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45 Thermal alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46 Thermal warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Hardware faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46 Continuous operation during replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47 Ops panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47 Replacing a module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47 Power supply modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47 AC Power supply module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47 Cooling module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49 Controller module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50 Battery module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52 Removing a battery module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53 Installing a battery module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53 Removing and replacing a disk I/O module . . . . . . . . . . . . . . . . . . . . . . . . . . .53 Drive carrier module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54 Removing a drive carrier module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54 Installing a drive carrier module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55 Dummy drive carrier module removal and replacement . . . . . . . . . . . . . . . .56
Telephone support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
Appendix A: Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
57 |
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58
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AC power (350 W power supply module) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Power supply module safety and EMC compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 Controller module specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 Disk I/O module specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 Drive carrier module specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Appendix B: Legal Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Appendix C: Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
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Contents
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CHAPTER1
•Overview
•The enclosure
•The plug-in modules
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CHAPTER 1: Introduction
Important
Mixing of SAS and SATA drives in the same enclosure is only supported in columns, for example, column 1 is all SAS and column 2 is all SATA. Also, mixing of drives of different capacities in the same column is not supported.
The Gateway E-842R SAS Enclosure Platform is a 2U (rack space) disk drive enclosure, housing twelve low profile (1-inch high), 3.5-inch form factor hard drives, which can be either:
•3 GB direct dock SAS disk drives,
•3 GB direct dock SATA disk drives, or
•3 GB dual path SATA disk drives through an active/active SATA mux transition card.
The system provides as much as 6 TB of data storage per enclosure when 500 GB drives are installed.
RAID enclosure expansion is achieved by connecting expansion enclosures. Multiple enclosures are connected together using SAS patch cables. You can connect as many as five enclosures. For more information, see “Enclosure cabling - multiple enclosures” on page 25.
The Gateway E-842R design concept is based on an enclosure subsystem together with a set of plug-in modules. The enclosure platform, as equipped, includes:
•Chassis and backplane with integrated (front panel mounted) operator’s panel.
•As many as 12 drive carrier modules, containing either:
•3 GB direct dock SAS disk drives,
•3 GB direct dock SATA disk drives, or
•3 GB dual path SATA disk drives through an active/passive SATA mux transition card.
Important
Dummy carrier modules must be fitted in all unused drive bays to maintain airflow. See “Dummy carrier modules” on page 13.
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•Two plug-in power supply modules, 100-240 V AC, 350 W.
•One plug-in cooling fan module.
•Two plug-in controller modules, each incorporating a RAID controller and a StorView Management Module.
Important
If only one controller module is installed, a blank module must be installed in the unused slot.
The chassis consists of a sheet metal enclosure assembly containing a backplane printed circuit board (PCB) and module runner system.
•The chassis front panel incorporates an integrated operator’s (Ops) panel.
•The backplane PCB provides logic level signal and low voltage power distribution paths.
•The chassis has 19-inch rack mounting features so it fits into a standard 19-inch rack and uses 2 EIA units of rack space (3.5” high).
Important
A drive bay is defined as the space required to house a single 1.0" high, 3.5- inch disk drive in its carrier module.
The chassis assembly contains 12 drive bays at the front, each of which accommodates the appropriate plug-in drive carrier module. The 12 drive bays are arranged in 3 rows of 4 drives per row. In the back, the chassis assembly contains five plug-in module bays to house two power supply modules (PSUs), a cooling fan module, and two controller modules, which are installed horizontally (one above the other) in the right bay.
0 |
1 |
0 |
1 |
PSU 1 |
PSU 2 |
Cooling Module |
RAID Controller 0 |
RAID Controller 1 |
RAID enclosure (back)
FACTORY USE ONLY |
FACTORY USE ONLY |
PSU 1 |
PSU 2 |
Cooling Module Disk I/O Module 0 |
Disk I/O Module 1 |
Expansion enclosure (back)
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CHAPTER 1: Introduction
The enclosure’s front panel has an integrated operator’s (Ops) panel with four LEDs. The Ops panel provides you with a high level indication of the operation of the enclosure. See “Ops panel LEDs” on page 8 for details of the LED status conditions.
Caution
The Ops panel is an integral part of the enclosure assembly and cannot be replaced separately. To replace the Ops panel, you must replace the entire enclosure.
Enclosure replacement should only be performed by trained personnel.
Visible alarms
The functional modules have associated status LEDs. The Ops panel shows a consolidated status for all modules. LEDs show constant green or blue to indicate good or positive status. Constant or flashing orange LEDs indicate the presence of a fault within that module.
LED |
State |
Description |
|
|
|
Power On |
Constant green |
Good or positive status |
|
|
|
System Fault |
Constant orange: fault present |
Indicates a problem with a power supply, cooling, or |
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controller module. For more information, see the |
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tables in “Power supply module LEDs” on page 13, |
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|
“Cooling Module LED” on page 13, and “Controller |
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module LEDs” on page 15. |
Logical Fault |
Constant orange: fault present |
Indicates failure of a drive module. The failing module |
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|
is indicated by the Fault LED. For more information, |
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|
see the table in “Drive carrier module faults” on |
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page 16. |
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|
Box Identity |
Constant blue: enclosure identity |
You can light this LED through the management |
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interfaces to indicate which enclosure requires |
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service actions. |
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|
See “Ops panel LEDs” on page 8 for a description of the Ops panel LED states.
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Audible alarms
The Gateway E-842R enclosure includes an audible alarm which indicates when a fault state is present. The following conditions activate the audible alarm:
•Fan fault
•Voltage out of range
•Over temperature
•Thermal overrun
•System fault
•Logical Fault
•Power supply module fault
When the audible alarm sounds, you can mute it by pressing the Alarm Mute button on the front panel. For more information, see “Audible alarm mute” on page 16.
A Gateway E-842R enclosure requires the following modules for normal operation:
•Two 350 W AC power supply modules.
•One cooling module.
•One or two controller modules.
•As many as 12 drive carrier modules.
•Dummy drive carrier modules, as required.
Important
No drive bays should be left completely empty. Dummy carriers or blank modules must be installed in all unused bays.
Two, 100V-260 VAC 350 W power supply modules are supplied and mounted in the back of the enclosure as part of the enclosure’s core product.
Power supply module input voltage operating ranges are nominally 115V or 230V AC, selected automatically.
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CHAPTER 1: Introduction
Two LEDs mounted on the rear panel of the power supply module indicate the status of the module:
Power On & OK |
Module Fault |
Status |
(Green) |
(Orange) |
|
|
|
|
Off |
Off |
No AC power (either power supply module) |
|
|
|
Off |
On |
No AC power (this power supply module only) |
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|
Power supply module fault (over temperature, over |
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voltage, over current, or power supply module fan fail) |
|
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|
On |
Off |
AC present, power supply module on and OK |
|
|
|
On |
On |
Power supply module fan fault |
Multiple power supply modules
In order to maintain the appropriate airflow, you must always operate the Gateway E-842R with two power supply modules installed. The two power supply modules operate together so if one fails, the other maintains the power supply and cooling while you replace the faulty module.
Module replacement should only take a few minutes to perform but must be completed within 10 minutes from removal of the failed module.
The cooling module provides system cooling, thermal monitoring, and control functions.
System airflow is from the front to the back of the enclosure:
•Cooling air passes over drives and through the midplane to a central air passage.
•The cooling module pulls air from the air passage and from the controller modules.
Important
The system must be operated with a low pressure rear exhaust installation (back pressure created by rack doors and obstacles not to exceed 5 pascals (0.5 mm water gauge)).
•The power supply modules pull cooling air from the air passage at the back of the enclosure.
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The module has an orange Cooling Module Fault LED.
LED status is described in the following table:
Module Fault (Orange) |
Status |
|
|
Off |
Enclosure Off - Indicated by power supply module and controller |
|
module OK lights |
Off |
Enclosure On - Fan OK |
|
|
On |
Cooling module fan failure |
|
|
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CHAPTER 1: Introduction
Caution
Operation of the enclosure with any modules missing disrupts the airflow and the drives do not receive sufficient cooling. All openings must be filled before operating the enclosure.
When only one controller module is installed, a blank module must be installed in the vacant controller module slot at the rear of the enclosure to maintain airflow and ensure correct operation.
Important
Do not mix Disk I/O modules and RAID Controller modules in the same enclosure. Disk I/O modules are only installed in the expansion enclosure and RAID Controllers are only installed in the RAID enclosure.
One or two controller modules (depending on your configuration) are supplied and mounted in the back of the enclosure as part of the Gateway E-842R enclosure core product.
The plug-in controller modules have been designed for integration into the enclosure, providing external FC cable interfacing with the host computer system.
The backplane incorporates a connection to each of the SAS ports within the controller modules.
The controller module’s internal processor monitors error conditions on each disk drive port. Processors housed on the controller modules provide enclosure management interfacing to devices on the backplane, power supply module, controller module, and Ops panel to monitor internal functions. These processors operate in a dual active configuration to allow failover.
The module incorporates LED indicators. For the location of the LED indicators, see “Controller module LEDs” on page 8.
External ports
The RAID controller module has the following external ports:
•Two external (host) SAS ports that allow for fitting of Small Form-Factor Pluggable (SFP) modules, with auto-bypass at the output. Either or both of these SFP ports can be used to provide connection to the host controllers. Each host port operates at 3 Gb/s, giving an effective speed of 6 Gb/s. These ports are also backwards compatible with 2 Gb/s hosts.
•An SAS expansion port supports as many as four expansion enclosures through an SFF-8470 connector.
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•An RJ45 10/100BaseT Ethernet port lets you connect the controller to a network to enable out-of-band management and monitoring using the embedded StorView GUI software.
Important
Only shielded, Cat 5 (or better) cables should be used for connection to the
Ehternet port for EMC performance.
•There is also an RS232 socket which provides an alternative user interface to the RJ45 connector.
Caution
Although the RS232 port is similar in appearance to a USB port, it requires a special cable and you should not attach a USB cable to it.
The recommended configurations are shown in “Ethernet connection” on page 24 and “Enclosure cabling - multiple enclosures” on page 25.
StorViewManagement software
The StorView Storage Management software which is embedded in the controller module is a full-featured, graphical, HTML-based software suite designed to configure, manage, and monitor the controller module storage solution. The module is configured with a base IP address to let you connect to it. See “StorView Storage Management software” on page 29 or the Gateway E-842R StorView Storage Management Software User Guide for further information.
LED functions |
LED state |
Definition |
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Battery fault |
Orange |
When lit, this LED indicates that the backup |
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battery unit is missing, has low voltage, has |
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experienced a time-out on charge indicating a |
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faulty battery, or has experienced a fault in the |
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charging circuitry. |
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Cache active |
Orange |
When lit, this LED indicates that the RAID |
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controller cache has data saved in memory but |
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not written to the disk array. |
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Controller activity on drive |
Orange |
When lit, this LED indicates activity on the Bank |
bank 0 |
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0 disk drives. |
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Controller activity on drive |
Orange |
When lit, this LED indicates activity on the Bank |
bank 1 |
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1 disk drives. |
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CHAPTER 1: Introduction
Controller OK |
Green |
When lit, this LED indicates that RAID controller |
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activity is normal. |
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Controller fault |
Orange |
When lit, this LED indicates that a RAID |
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controller fault has occurred. |
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Ethernet status |
Green |
When lit, this LED indicates that the Ethernet |
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port has a valid connection. |
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Orange |
When lit, this LED indicates that the Ethernet |
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port has activity. |
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SAS activity |
Green |
When lit, these LEDs show I/O activity on the |
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specific port lane indicated. |
Each controller module assembly includes a removable battery module (for the location, see “Controller module” on page 8). The battery module contains a replaceable Li-Ion battery pack, as shown in the following illustration. The battery pack protects the cache contents if the AC power fails. You can check the amount of battery time available through the Management Interface. The amount of time available is dependent on the amount of cache in the system.
See “Battery module” on page 24 for removal and replacement procedures.
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The expansion enclosure houses one or two Disk I/O modules. They provide the drive expansion for the RAID enclosure. When expanding the system, you may add up to four expansion enclosures. This will give you a total of five enclosures including the RAID enclosure. A fully loaded system will provide a total of 60 disk drives.
Important
Do not mix Disk I/O modules and RAID Controller modules in the same enclosure. Disk I/O modules are only installed in the expansion enclosure and RAID Controllers are only installed in the RAID enclosure.
Processors housed on the Disk I/O modules provide enclosure management and an interface to the devices on the backplane, PSU, Disk I/O module and Ops panel, which monitor internal functions. These Disk I/O module processors operate in a master-slave configuration to allow for failover.
The enclosure may be configured with either one or two modules. If only one Disk I/O module is installed, a blank module must be installed in the unused bay.
Each SAS connector has four LEDs adjacent to the connector. The LEDs indicate I/O activity on that specific SAS port lane where each port has four lanes.
Important
The OUT port on the RAID Controller or DIsk I/O module connects to the IN port on the Disk I/O module in the next E-842R enclosure in a multiple enclosure configuration, See “Enclosure cabling - multiple enclosures” on page 25 for further information on enclosure expansion.
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CHAPTER 1: Introduction
The drive carrier module comprises a hard disk mounted in a carrier. Each drive bay houses a single, low profile, 1.0-inch high, 3.5-inch form-factor disk drive in its carrier. The carrier has mounting locations for SAS or SATA drives.
The front cap also supports an ergonomic handle which provides the following functions:
•Inserting the carriers into the drive bays
•Removing the carriers from drive bays
•Positive “spring loading” of the drive/backplane connector
•An anti-tamper lock operated by a torx-socket type key
Drive status indicators
Each drive carrier has two LEDs, an upper (green) and lower (orange). In normal operation the green indicator is ON and flickers as the drive operates. The orange indicator is only ON if there is a drive fault. If the green LED is OFF when the orange LED is ON, a power control circuit failure is indicated.
Power On & OK |
Module Fault |
Status |
(Green) |
(Orange) |
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On |
Off |
Normal operation |
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On |
On |
Drive fault |
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Off |
On |
A power control circuit failure |
Anti-tamper locks
Anti-tamper locks are installed in the drive carrier handles and are accessed through the small cutout in the latch section of the handle. These locks are provided to disable the normal “pinch” latch action of the carrier handle.
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Dummy carrier modules are provided for fitting in all unused drive bays. They are designed as integral drive module front caps and must be installed in all unused drive bays to maintain a balanced airflow.
Caution
Operation of the enclosure with any modules missing disrupts the airflow and the drives do not receive sufficient cooling. All openings must be filled before operating the enclosure.
When only one controller module is installed, a blank module must be installed in the vacant controller module slot at the rear of the enclosure to maintain airflow and ensure correct operation.
Important
Do not mix Disk I/O modules and RAID Controller modules in the same enclosure. Disk I/O modules are only installed in the expansion enclosure and RAID Controllers are only installed in the RAID enclosure.
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CHAPTER 1: Introduction
14
CHAPTER2
•Introduction
•Planning your installation
•Enclosure installation procedures
•Module installation
•Enclosure configuration
•Enclosure cabling - single enclosure
•Ethernet connection
•Enclosure cabling - multiple enclosures
•Drive slot arrangement
•Power cord connection
•Grounding checks
•Management interfaces
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CHAPTER 2: Getting Started
Caution
When connecting the enclosure, use only the power cords supplied or cords which match the specification quoted in “Specifications” on page 29.
This chapter explains how to install your enclosure into an industry-standard, 19-inch rack cabinet and configure the enclosure sub-system.
Caution
Blank modules or dummy carrier modules MUST be installed in ALL unused bays or
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the enclosure may overheat. |
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Before you begin installation, you should become familiar with the configuration requirements of |
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your enclosure, detailed in the following table. The correct positions of each of the optional plug-in |
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modules are shown in the illustration. See “Ethernet connection” on page 24 and “Enclosure cabling |
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- multiple enclosures” on page 25 for details of controller module configurations. |
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Module |
Location |
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Drive bays |
All drive bays must have a drive carrier module or dummy drive carrier module installed. No bays should |
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be left empty. |
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Power supply (PSU) |
Two power supply modules must be installed. Full power redundancy is provided while a faulty module |
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modules |
is replaced. Install the power supply modules in the left rear bays, as shown in the following illustration. |
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Cooling module |
Install the cooling module in the rear bay, as shown in the following illustration. |
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Controller module |
Two RAID controller modules (or one controller module and one blank module) can be installed, |
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depending on the configuration you require. The modules are installed horizontally (one above the |
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other) in the right rear bay. |
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Disk I/O module |
Two Disk I/O modules (or one Disk I/O module and one blank module) can be installed, depending on |
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the configuration you require. The modules are installed horizontally (one above the other) in the right |
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rear bay. |
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0 |
1 |
0 |
1 |
PSU 1 |
PSU 2 |
Cooling Module |
RAID Controller 0 |
RAID Controller 1 |
Enclosure module
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FACTORY USE ONLY |
FACTORY USE ONLY |
PSU 1 |
PSU 2 |
Cooling Module Disk I/O Module 0 |
Disk I/O Module 1 |
Disk I/O module
Important
Drive carrier modules must always be installed in drive locations 1 and 12. This is the minimum configuration required for the system to operate and provide SES Management Services.
The enclosure drive bay numbering convention is shown in the illustration on page 16. A drive bay is defined as the space required to house a single 1.0-inch high, 3.5-inch disk drive in its carrier module.
Important
Before you begin installation, you should become familiar with the configuration requirements of your enclosure. There must be a drive present in drive locations 1 and 12 to enable SES communications to operate. Installing drives in both of these bays provides redundant SES communication paths.
When planning your system configuration, remember that all enclosure drive bays must be filled with either a drive carrier or dummy drive carrier module. No bays should be left empty.
Warning
An enclosure with all component parts installed is too heavy for a single person to safely install alone into a rack cabinet.
The following procedures describe the installation of an enclosure and highlight any critical requirements and good handling practices you should follow to ensure a successful installation.
Caution
Make sure that you wear a suitable anti-static wrist or ankle strap and observe all conventional ESD precautions when handling modules and components. Avoid contact with such things as backplane components and module connectors.
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CHAPTER 2: Getting Started
Important
The E-842R system supports most of the widely used operating systems. However deployment on Microsoft Windows requires the .inf driver file which is found on the Gateway External Storage CD (ESCD). (For Windows Servers, insert the ESCD and install the .inf file.)
Before you begin, make sure that the site where you intend to set up and use your storage system has the following:
•Standard AC power from an independent source or a rack power distribution unit with a UPS (universal power supply).
•A host computer with a standard Fibre Channel HBA (host bus adapter) with the latest BIOS and drivers. Follow the instructions provided with your HBA and install the HBA and its driver software, if necessary.
The package contents and unpacking procedure are outlined in the following illustration.
The accessory box contains the AC power cord(s), a serial communication cord, and the software and the Gateway External Storage CD (ESCD). The accessory box insert contains the adjustable rail slides and hardware parts to rack mount the enclosure.
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