IBM X3950 X5 Problem Determination And Service Manual page 169

Replacing the hard disk drive backplane and cable assembly
This topic provides instructions for how to replace the hard disk drive backplane
cable assembly.
About this task
To replace the hard disk drive backplane cable assembly, complete the following
steps.
Procedure
1. Connect the power and configuration cables to the cable connectors on the
backplane.
2. Slide the backplane and cable assembly into the server behind the hard disk
drive bays.
3. Install the top cover (see "Replacing the top cover" on page 107).
4. Connect the cables and power cords (see "Connecting the cables" on page 104
for cabling instructions).
5. Reinstall the hard disk drives and hard disk drive fillers into the server (see
"Replacing a hot-swap hard disk drive" on page 118).
6. Turn on all attached devices and the server.
7. Restore the RAID configuration information that you backed up before you
removed the hard disk drive backplane cable assembly.
Removing the SAS hard disk drive backplane assembly
This topic provides instructions for how to remove the SAS hard disk drive
backplane assembly.
About this task
Important: Before you remove the SAS hard disk drive backplane assembly from
the server, take the following precautions to save data, firmware, and configuration
data:
v Before you make changes to disk drives, disk drive controllers (including
controllers that are integrated on the system board), disk drive backplanes, or
disk drive cables, back up all important data that is stored on hard disks.
v Before you remove any component of a RAID array, back up all RAID
configuration information.
Chapter 5. Removing and replacing components
153