Replacing A Failed Controller; Removing And Replacing A Failed Controller Cru - IBM TotalStorage DS4400 User Manual

Replacing a failed controller

When instructed by the storage-management software, replace a controller CRU
using the following procedure.
Attention:
software to verify the firmware levels.
1. Remove the DS4400 Storage Server bezel, as shown in Figure 21 on page 23.
2. Using Figure 34 as a guide, remove the controller that has failed.
Figure 34. Removing and replacing a failed controller CRU
3. Unpack the new controller. Using the proper handling precautions, remove the
4. Using Figure 34 as a guide, install the new controller as follows:
5. Using Figure 35 on page 44 as a guide, check the controller indicator lights.
After replacing a controller, always use the storage-management
Attention: Removing a controller that is operating normally (not failed) can
result in data loss. Only remove a controller that:
v Has a fault indicator light that is lit
v Is marked as "Failed" (offline) through the storage-management software
a. Squeeze the two center tabs and pull both controller handles outward.
b. Using both handles, pull out on the controller to remove it.
Po
! w er
Fa
ul t
H ea
rt be
at
S ta â
tu s
R es
et
Attention: When you handle static-sensitive devices, take precautions to
avoid damage from static electricity. For details about handling static-sensitive
devices, see "Handling static-sensitive devices" on page 41.
new controller from the packing material.
Check the shipping invoice and the controller to make sure that it has the same
memory size as the controller that you just removed.
a. Squeeze the two center tabs and pull both controller handles outward.
b. Using the handles, slide the controller into the slot until the back edge of
both handles hooks onto the frame.
c. Close both handles and snap into place.
Po
w er
!
Fa
ul t
H ea
rt be
at
S ta
tu s â
R es
et
Chapter 3. Replacing DS4400 Storage Server components
43