IBM EXN1000, Hardware And Service Manual, Page: 59 / 94

Chapter 4. Replacing EXN1000 expansion unit devices
This chapter describes how to replace EXN1000 expansion units in a rack,
disks in an EXN1000 expansion unit, and other devices, in the following
sections:
v “Removing an EXN1000 expansion unit”
v
“Replacing a disk in an EXN1000 expansion unit” on page 32
v “Replacing a power supply in an EXN1000 expansion unit” on page 33
v
“Replacing an AT-FCX module” on page 35
Attention: Return failed parts to IBM. Contact IBM Service and Support at
1-800-IBM-SERV (1-800-426-7378) for more information on the return
procedure.
Removing an EXN1000 expansion unit
This section discusses how to disconnect an EXN1000 expansion unit from an
N series storage system and how to remove an EXN1000 expansion unit from
a daisy-chain configuration. It does not discuss how to install an EXN1000
expansion unit or how to hot-add an EXN1000 expansion unit. For
information about installing an EXN1000 expansion unit in a rack, see “Guide
to the installation process” on page 5. For information about hot-adding a
disk-shelf, see “Hot-adding an EXN1000 expansion unit to an existing loop”
on page 15.
CAUTION:
Hot removal or hot-swapping of an EXN1000 expansion unit is not
supported.
For detailed information about removing an EXN1000 expansion unit from a
rack, see the following topics:
v “Removing an EXN1000 expansion unit from a single EXN1000 expansion
unit configuration” on page 30
v
“Removing an EXN1000 expansion unit from a loop” on page 31
© Copyright IBM Corp. 2005, 2007
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