IBM TotalStorage DS4800, Инструкция по установке, эксплуатации и обслуживанию

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Chapter 5. Replacing components
This chapter lists replacement parts and explains the procedures for replacing a
controller, a power supply and fan unit, an interconnect-battery unit, and an SFP
module. Before using the procedures in this chapter, perform the appropriate
troubleshooting steps described in “Troubleshooting the storage subsystem” on
page 117, and in the Recovery Guru.
The following list shows the components that you can replace on site. To order
parts, contact your IBM service representative.
v RAID controllers
v Power supply-fans (containing power supplies, fans, and battery chargers)
v
Interconnect-battery unit (containing the midplane and batteries for the cache
backup)
v SFP modules
v
Interface cables
v Ethernet cables
Attention: Never remove the interconnect-battery unit unless directed to do so by
an IBM Service representative. Refer to “Replacing the interconnect-battery unit” on
page 156 for complete information about the conditions required for safe removal of
the interconnect-battery unit.
This chapter also provides instructions to help you add new DS4000 storage
expansion enclosures to existing DS4800 configuration.
You can perform all replacement procedures in this chapter as hot-swap
procedures. Hot swap refers to the ability to remove and replace a storage
subsystem component while the storage subsystem is under power and processing
data. The DS4800 Storage Subsystem has three major components you can
replace on site: the controller, power supply and fan unit, and interconnect-battery
unit. In a fully configured storage subsystem, the controllers and power supply and
fan units are redundant. If any one of these redundant components fails, the
component can be replaced without powering off the storage subsystem, and
without interrupting data processing.
For more CRU and Option part number information, see the following Web site:
www.ibm.com/servers/storage/support/disk/
Handling static-sensitive devices
Attention: Static electricity can damage electronic devices and your system. To
avoid damage, keep static-sensitive devices in their static-protective packages until
you are ready to install them.
To reduce the possibility of electrostatic discharge, observe the following
precautions:
v Limit your movement. Movement can cause static electricity to build up around
you.
v
Handle the device carefully, holding it by its edges or its frame.
v Do not touch solder joints, pins, or exposed printed circuitry.
© Copyright IBM Corp. 2006, 2007
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