Installing And Replacing Devices; Working With Hot-Swap Drives - IBM EXP15 Hardware Maintenance Manual

Installing and replacing devices

Use the following information to help you install or remove
customer replaceable units (CRUs), such as hot-swap
drives, fans, ESM boards, and power supplies.

Working with hot-swap drives

Before you begin
Read the safety and handling guidelines provided
in "Safety Information" on page 112.
Ensure that your current system configuration is
working properly.
Back up all important data before you make
changes to storage devices, such as hard disk
drives.
Drives are devices that your system uses to store and
retrieve data. This section explains how you can increase
the expansion unit capacity by adding more drives or
replacing existing drives with ones containing a larger
capacity.
Before you install or remove drive CRUs, review the
following information:
Blank trays:
Expansion units without a full set of drives (10)
contain blank trays in the unused drive bays. Before
installing new drives, you must remove the empty
trays. Save the empty trays for future use. Each of
the 10 bays must always contain either a blank tray
or a drive CRU. Each blank tray contains a filler
piece for use with a half-high or slim-line drive.
Drive CRUs:
Your expansion unit supports IBM Fibre Channel (FC)
hard disk drives. These IBM drives come preinstalled
in a drive tray, ready for installation. (Do not detach
the drive from the tray.) This drive and tray assembly
is called a drive CRU (customer replaceable unit).
You can install the drive CRUs directly into the 10
drive bays on the front of the expansion unit.
Drive CRU labels:
A label is provided on the front of the drive CRU tray.
Use this label to record the location information for
each drive before you remove it. Ensure that you
keep track of the drives and their corresponding bays.
(If you reinstall a drive in the wrong bay, you might
lose data.)
Drive LEDs:
Each drive tray has two LEDs, which indicate the
status for that particular drive. The drive LED states
and descriptions are as follows.
Netfinity FAStT EXP500 - Type 3560
83