NEC Storage ST1220 User manual

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User Guide
SA2500/WA2500
NEC Storage ST1220

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User Guide
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Proprietary Notice and Liability Disclaimer
The information disclosed in this document, including all designs and related materials,
is the valuable property of NEC Computers and/or its licensors. NEC Computers and/
or its licensors, as appropriate, reserve all patent, copyright and other proprietary rights
to this document, including all design, manufacturing, reproduction, use, and sales
rights thereto, except to the extent said rights are expressly granted to others.
To allow for design and specification improvements, the information in this document
is subject to change at any time, without notice. Reproduction of this document or
portions thereof without prior written approval of NEC Computers is prohibited.
The NEC Computers product(s) discussed in this document are warranted in
accordance with the terms of the Warranty Statement accompanying each product.
However, actual performance of each product is dependent upon factors such as system
configuration, customer data, and operator control. Since implementation by customers
of each product may vary, the suitability of specific product configurations and
applications must be determined by the customer and is not warranted by NEC
Computers.
Trademarks
NEC ESMPRO, NEC DianaScope, NEC MWA, and ExpressBuilder are trademarks or
registered trademarks of NEC Corporation.
Adobe, and Adobe Acrobat are registered trademarks of Adobe Systems, Incorporated.
Microsoft, Microsoft Windows, Windows NT, Windows 95, Windows 98, Windows
2000 and Windows Server 2003 are all registered trademarks of Microsoft Corporation.
MS-DOS is a registered trademark of Microsoft Corporation.
Intel and Xeon are registered trademarks of Intel Corporation.
All other product, brand, or trade names used in this publication are the trademarks or
registered trademarks of their respective trademark owners.
rev 1.1December 2006
Copyright 2006
All Rights Reserved
NEC Computers S.A.S.
10 rue Godefroy
Immeuble OPTIMA
92821 PUTEAUX

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TABLE OF CONTENTS
Table of Contents.............................................................................................................4
Regulatories..................................................................................................................6
Momentary Voltage Drop Prevention ................................................................................... 6
CE Statement ........................................................................................................................ 6
FCC Statement...................................................................................................................... 6
BSMI Statement.................................................................................................................... 6
Packing list ...................................................................................................................7
Notes on Use - Always read the notes.-..........................................................................8
Safety Indications ........................................................................................................8
Symbols Used in This User's Guide and Warning Labels...........................................9
Cautions........................................................................................................................9
Prohibited Actions .......................................................................................................9
Mandatory Actions ......................................................................................................9
SAFETY Notes...............................................................................................................10
General .......................................................................................................................10
Power Supply and Power Cord Use.........................................................................11
Rack ............................................................................................................................13
Installation, Relocation, Storage, and Connection..................................................14
Cleaning, and Working with, Internal Devices.......................................................15
During Operation ......................................................................................................16
Warning Labels..........................................................................................................17
Notes on Handling ∼For Proper Operation∼..........................................................18
Accessories Check......................................................................................................19
Third Party Transfer.................................................................................................19
Disposing of the Disk Expansion Unit and its Consumables.................................19
1. Overview of the Disk Expansion Unit.................................................................... 20
Disk Expansion Unit Specifications.............................................................................20
Disk Expansion Unit Features......................................................................................20
2. Names and Functions of Components ................................................................. 21
Front View......................................................................................................................21
Rear View.......................................................................................................................23
Front Bezel.....................................................................................................................25
LED Indications.............................................................................................................26
Power LED.................................................................................................................26
Status LED..................................................................................................................26
IO Module LED .........................................................................................................26
Heartbeat LED...........................................................................................................26
Power Unit LED.........................................................................................................27
Fan Unit LED.............................................................................................................27
Dummy Power Unit LED..........................................................................................27
SAS Connector LED..................................................................................................27
IO Module States LED ..............................................................................................27
Disk Drive LEDs........................................................................................................28

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3. Installing and Connecting the Disk Expansion Unit............................................ 29
Installing.........................................................................................................................29
Installing to / Removing from Rack.........................................................................31
Checking the Installation Components............................................................................... 31
Required Tools.................................................................................................................... 32
Installing the Disk Expansion Unit in an NEC or Third Vendor Rack................................ 32
Removing the Disk Expansion Unit from the Rack............................................................ 38
Connecting .....................................................................................................................39
SAS Interface Cable............................................................................................................ 40
Installation .......................................................................................................................... 40
Cable Connections (Example) ..................................................................................41
Power Cord ......................................................................................................................... 42
4. Basic Operations .................................................................................................... 43
Installing or Removing the Front bezel.......................................................................43
Removing............................................................................................................................ 43
Installing ............................................................................................................................. 45
Powering on/off..............................................................................................................46
5. Installing Built-in Optional Devices....................................................................... 47
Safety Precautions .....................................................................................................47
Anti-static Measures..................................................................................................48
Preparing for Installation and Removal......................................................................49
Installing and Removing Procedures...........................................................................50
Hard Disk ...................................................................................................................50
Installing a Hard Disk......................................................................................................... 51
Removing a Hard Disk........................................................................................................ 54
Rebuilding Disks........................................................................................................56
Power Unit..................................................................................................................57
Installing a Power Unit ....................................................................................................... 57
Replacing a Defective Power Unit...................................................................................... 58
6. Configuration .......................................................................................................... 60
About the disk array controller................................................................................60
7. Management............................................................................................................ 61
Daily Maintenance.........................................................................................................61
LEDs Check................................................................................................................61
Backup........................................................................................................................61
Cleaning the Disk Expansion Unit...........................................................................62
Troubleshooting.............................................................................................................63
LEDs Error Messages................................................................................................63
Troubleshooting .........................................................................................................63
Relocation and Storage of Disk Expansion Unit.........................................................66
User Support..................................................................................................................67

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Regulatories
Momentary Voltage Drop Prevention
This product may be affected by a momentary voltage drop caused by lightning. To prevent a
momentary voltage drop, an AC uninterruptible power supply (UPS) unit should be used.
NOTE: This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction manual, may cause harmful interference to
radio communications. Operation of this equipment in a residential area is likely to cause harmful
interference in which case the user will be required to correct the interference at his own expense.
CE Statement
Warning: This is a Class A product. In domestic environment this product may cause radio
interference in which case the user may be required to take adequate measures (EN55022).
FCC Statement
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) this device may not cause harmful interference, and (2) this device must accept any
interference received, including interference that may cause undesired operation.
BSMI Statement

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Packing list
Check the contents in the package.
The package contains various accessories, as well as the Disk Expansion Unit itself. Check with
the packing list and make sure you have everything and that individual components are not
damaged. If you find any missing or damaged components, contact your sales agent.
If the ST1220 Disk Expansion Unit is shipped with some additional options installed, the
accessories for the options are also included.
Main unit
Contents in the accessory package
M5 Screw (Large size)
(12)
Front Bezel (its key is either attached to
the back or inside the accessory box)
Guide Rail assembly
Countersink Screw
(Small size)
(18)
Washers
(12) Captive nuts
(12)

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NOTES ON USE - ALWAYS READ THE NOTES.-
The following includes information necessary for proper and safe operation of the Disk Expansion
Unit.
Safety Indications
Handle the Disk Expansion Unit as instructed in this User's Guide to ensure proper and safe
operation.
The User’s Guide describes potential dangers resulting from the use of the Disk Expansion Unit,
dangers you encounter if you do not observe the instructions, and ways to avoid any dangerous
situation.
Warning labels are attached to the components posing potential threats or in their vicinity in the
Disk Expansion Unit.
In the User’s Guide, "WARNING" or "CAUTION" is used to indicate a degree of danger. The terms
are defined as follows.
WARNING Indicates a hazard that may result in death or serious personal injury.
CAUTION Indicates a hazard that may cause minor personal injury, including burns, or
property damage.
Precautions and notices against hazards are presented with one of the following three symbols.
The individual symbols are defined as follows:
This symbol indicates a hazard.
An image in the symbol illustrates the hazard type. (Attention)
This symbol indicates prohibited actions. An image in the symbol illustrates a
particular prohibited action. (Prohibited Action)
This symbol indicates mandatory actions. An image in the symbol illustrates a
mandatory action to avoid a particular hazard. (Mandatory Action)

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SYMBOLS USED IN THIS USER'S GUIDE AND WARNING LABELS
Cautions
Indicates that improper use may cause an electric shock.
Indicates that improper use may cause fumes or fire.
Indicates that improper use may cause fingers to be caught.
Indicates the possibility of loss due to a high temperature.
Indicates a general notice or warning that cannot be specifically identified.
Prohibited Actions
Indicates a general prohibited action that cannot be specifically identified.
Do not disassemble, repair, or modify the Disk Expansion Unit. Doing so may cause
an electric shock or fire.
Mandatory Actions
Unplug the power cord of the Disk Expansion Unit. Not doing so may cause an
electric shock or fire.
Indicates a mandatory action that cannot be specifically identified. Make sure to
follow the instruction.

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SAFETY NOTES
Read the notes described below carefully to understand them, these will enable you to use the Disk
Expansion Unit safely. See "Safety Indications" described earlier for the descriptions of symbols.
General
WARNING
Do not use the Disk Expansion Unit for services involving human lives or
requiring high reliability.
The Disk Expansion Unit is not intended to be used with or control facilities or
devices concerning human lives, including medical devices, nuclear facilities
and devices, aeronautics and space devices, transportation facilities and
devices; and facilities and devices requiring high reliability. NEC assumes no
liability for any accident resulting in personal injury, death, or property damage
if the Disk Expansion Unit has been used in the above conditions.
Do not use the Disk Expansion Unit in any unapproved place.
Install the Disk Expansion Unit on a standard EIA 19-inch rack assembly for
NEC Express server. Do not install the rack containing the Disk Expansion
Unit in a place inappropriate to the rack installation environment.
For more information, refer to the manual attached to the rack or contact your
sales agent.
Always install the Disk Expansion Unit on a rack for NEC Express servers,
conforming to the relevant standard.
Install the Disk Expansion Unit in a rack confirming to the EIA standard for the
server to be used. Do not install the Disk Expansion Unit in any other rack
than a standard EIA 19-inch rack, and do not operate it when it is not installed
in a rack. Failure to follow these instructions may cause the Disk Expansion
Unit to operate incorrectly and/or personal injury or damages of surrounding
devices to occur. Contact your sales agent for more information on the racks
available for the Disk Expansion Unit.
Do not use the Disk Expansion Unit if you are aware of any suspect smoke,
odour, or noise.
If smoke, odour, or noise is present, immediately switch off the unit and
disconnect the power plug from the outlet (switching off the power of the NEC
Express server can cut off power to the Disk Expansion Unit). Contact your
sales agent. Using the Disk Expansion Unit in such conditions may cause a
fire.
Keep needles or metal objects away from the Disk Expansion Unit.
Do not insert needles or metal objects into the ventilation holes of the Disk
Expansion Unit or openings of the hard disk drive. Doing so may cause an
electric shock.