Chapter 5. Replacing Components; Handling Static-Sensitive Devices - IBM DS5100 Installation, User's, And Maintenance Manual

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 142, 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 and fan units (containing power supplies, fans, and battery
v Interconnect-battery unit (containing the midplane and batteries for the cache
v SFP modules
v Interface cables
v Ethernet cables
Attention:
an IBM Service representative. Refer to "Replacing the interconnect-battery unit" on
page 187 for complete information about the conditions required for safe removal of
the interconnect-battery unit.
Instructions are also provided to help you add new DS5100 and DS5300 storage
expansion enclosures to existing DS5100 and DS5300 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 DS5100 and DS5300 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 FRU and Option part number information, see the following Web site:
www.ibm.com/systems/support/storage/disk

Handling static-sensitive devices

Attention:
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
v Handle the device carefully, holding it by its edges or its frame.
© Copyright IBM Corp. 2009
chargers)
backup)
Never remove the interconnect-battery unit unless directed to do so by
Static electricity can damage electronic devices and your system. To
you.
167