IBM EXN1000 User manual

IBM System Storage EXN1000 Storage Expansion Unit
Hardware and Service Guide
GC26-7802-02
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IBM System Storage EXN1000 Storage Expansion Unit
Hardware and Service Guide
GC26-7802-02
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Note:
Before using this information and the product it supports, be sure to read the general information in “Notices”
on page 51.
The following paragraph does not apply to any country (or region) where such provisions are inconsistent with local
law.
INTERNATIONAL BUSINESS MACHINES CORPORATION PROVIDES THIS PUBLICATION “AS IS” WITHOUT
WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY OR FITNESS FOR APARTICULAR PURPOSE. Some states (or regions) do
not allow disclaimer of express or implied warranties in certain transactions; therefore, this statement may not apply
to you.
Order publications through your IBM representative or the IBM branch office serving your locality.
©Copyright International Business Machines Corporation 2005, 2007. All rights reserved.
US Government Users Restricted Rights –Use, duplication or disclosure restricted by GSA ADP Schedule Contract
with IBM Corp.

Safety and environmental notices
This section contains information about:
v“Safety notices and labels”
v“Laser safety” on page vii
v“Rack safety” on page viii
v“Product recycling and disposal” on page xi
v“Battery return program” on page xii
v“Fire suppression systems” on page xiii
Safety notices and labels
When using this product, observe the danger, caution, and attention notices
contained in this guide. The notices are accompanied by symbols that
represent the severity of the safety condition.
The following sections define each type of safety notice and provide
examples.
The following notices and statements are used in IBM®documents. They are
listed below in order of increasing severity of potential hazards. Follow the
links for more detailed descriptions and examples of the danger, caution, and
attention notices in the sections that follow.
vNote: These notices provide important tips, guidance, or advice.
v“Attention notices” on page vii: These notices indicate potential damage to
programs, devices, or data.
v“Caution notices” on page vi: These statements indicate situations that can
be potentially hazardous to you.
v“Danger notices”: These statements indicate situations that can be
potentially lethal or extremely hazardous to you. Safety labels are also
attached directly to products to warn of these situations.
vIn addition to these notices, “Labels” on page vi may be attached to the
product to warn of potential hazards.
Danger notices
Adanger notice calls attention to asituation that is potentially lethal or
extremely hazardous to people. Alightning bolt symbol accompanies adanger
notice to represent adangerous electrical condition. Asample danger notice
follows.
©Copyright IBM Corp. 2005, 2007 iii

DANGER
An electrical outlet that is not correctly wired could place
hazardous voltage on metal parts of the system or the devices
that attach to the system. It is the responsibility of the
customer to ensure that the outlet is correctly wired and
grounded to prevent an electrical shock. (D004)
Acomprehensive danger notice provides instructions on how to avoid shock
hazards when servicing equipment. Unless instructed otherwise, follow the
procedures in the following danger notice.
iv

DANGER
When working on or around the system, observe the following
precautions:
Electrical voltage and current from power, telephone, and
communication cables are hazardous. To avoid ashock hazard:
vConnect power to this unit only with the IBM provided
power cord. Do not use the IBM provided power cord for
any other product.
vDo not open or service any power supply assembly.
vDo not connect or disconnect any cables or perform
installation, maintenance, or reconfiguration of this product
during an electrical storm.
vThe product might be equipped with multiple power cords.
To remove all hazardous voltages, disconnect all power
cords.
vConnect all power cords to aproperly wired and grounded
electrical outlet. Ensure outlet supplies proper voltage and
phase rotation according to the system rating plate.
vConnect any equipment that will be attached to this product
to properly wired outlets.
vWhen possible, use one hand only to connect or disconnect
signal cables.
vNever turn on any equipment when there is evidence of fire,
water, or structural damage.
vDisconnect the attached power cords, telecommunications
systems, networks, and modems before you open the device
covers, unless instructed otherwise in the installation and
configuration procedures.
vConnect and disconnect cables as described below when
installing, moving, or opening covers on this product or
attached devices.
To Disconnect:
1. Turn off everything (unless instructed otherwise).
2. Remove power cords from the outlet.
3. Remove signal cables from connectors.
4. Remove all cables from devices.
To Connect:
1. Turn off everything (unless instructed otherwise).
2. Attach all cables to devices.
3. Attach signal cables to the connectors.
4. Attach power cords to the outlets.
5. Turn on the devices.
(D005)
Safety and environmental notices v

Labels
As an added precaution, safety labels are often installed directly on products
or product components to warn of potential hazards.
The actual product safety labels may differ from these sample safety labels:
(L001)
DANGER
Hazardous voltage, current, or energy levels are
present inside any component that has this label
attached. Do not open any cover or barrier that
contains this label.
(L003)
DANGER
Multiple power cords. The product might be equipped
with multiple power cords. To remove all hazardous
voltages, disconnect all power cords.
Caution notices
Acaution notice calls attention to asituation that is potentially hazardous to
people because of some existing condition. Acaution notice can be
accompanied by different symbols, as in the examples below:
If the symbol is... It means...
Ahazardous electrical condition with less severity than
electrical danger.
Agenerally hazardous condition not represented by
other safety symbols.
Ahazardous condition due to the use of alaser in the
product. Laser symbols are always accompanied by the
classification of the laser as defined by the U. S.
Department of Health and Human Services (for
example, Class I, Class II, and so forth).
vi

Attention notices
An attention notice indicates the possibility of damage to aprogram, device,
or system, or to data. An exclamation point symbol may accompany an
attention notice, but is not required. Asample attention notice follows:
Attention: Do not bend afibre cable to aradius less than 5cm (2
in.); you can damage the cable. Tie wraps are not recommended for
optical cables because they can be easily overtightened, causing
damage to the cable.
Laser safety
When using an NVRAM5 or NVRAM6 cluster media converter, the storage
system must be installed in arestricted access location.
CAUTION:
This product contains aClass 1M laser. Do not view directly with
optical instruments. (C028)
This equipment contains Class 1laser products, and complies with FDA
radiation Performance Standards, 21 CFR Subchapter Jand the international
laser safety standard IEC 825-2.
CAUTION:
Data processing environments can contain equipment transmitting on
system links with laser modules that operate at greater than Class 1
power levels. For this reason, never look into the end of an optical
fiber cable or open receptacle. (C027)
Attention: In the United States, use only SFP or GBIC optical transceivers
that comply with the FDA radiation performance standards, 21 CFR
Subchapter J. Internationally, use only SFP or GBIC optical transceivers that
comply with IEC standard 825–1. Optical products that do not comply with
these standards may produce light that is hazardous to the eyes.
Usage restrictions
The optical ports of the modules must be terminated with an optical
connector or with adust plug.
Safety and environmental notices vii

Rack safety
Rack installation
DANGER
Observe the following precautions when working on or
around your IT rack system:
vHeavy equipment -personal injury or equipment damage
might result if mishandled.
vAlways lower the leveling pads on the rack cabinet.
vAlways install stabilizer brackets on the rack cabinet.
vTo avoid hazardous conditions due to uneven mechanical
loading, always install the heaviest devices in the bottom of
the rack cabinet. Always install servers and optional devices
starting from the bottom of the rack cabinet.
vRack-mounted devices are not to be used as shelves or work
spaces. Do not place objects on top of rack-mounted
devices.
vEach rack cabinet might have more than one power cord. Be
sure to disconnect all power cords in the rack cabinet when
directed to disconnect power during servicing.
vConnect all devices installed in arack cabinet to power
devices installed in the same rack cabinet. Do not plug a
power cord from adevice installed in one rack cabinet into
apower device installed in adifferent rack cabinet.
vAn electrical outlet that is not correctly wired could place
hazardous voltage on the metal parts of the system or the
devices that attach to the system. It is the responsibility of
the customer to ensure that the outlet is correctly wired and
grounded to prevent an electrical shock.
(R001 part 1of 2
viii