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3. Disconnect all attached interface cables from the failed controller. Be sure to
label each cable so that you can reconnect it correctly.
4. Remove the controller from the chassis.
a. On the left side of the controller, press the orange release tab to the right
just enough to release the handle; then, rotate the handle upward.
b. Slowly pull the handle away from the chassis to remove the controller from
the bay, as shown in Figure 38.
c. Place the controller on a level surface.
Attention: After you remove a controller, wait 70 seconds before you reseat or
replace the controller. Failure to do so might cause unpredictable results.
Installing a controller
Use this procedure to install a new controller as the second controller, controller B
(controller A is installed in the left controller bay; controller B is installed in the right
controller bay).
Attention: Make sure that the two controllers have the same cache memory
capacity and options (the optional SAS host port adapter is either installed in both
controllers or is not installed in both controllers). An incompatible controller will be
placed in a lockout state by the other controller in the DS3200.
To install a controller in the storage subsystem, complete the following steps:
1. Read the safety information that begins on page xi and “Best practices
guidelines” on page 6.
2. Make sure that the second controller has the same DIMM size, and options
(such as a host port adapter) as controller A.
3. Install new dual-controller NVSRAM on controller A. See “Downloading
controller or NVSRAM” in the System Storage DS3000 Storage Manager
Installation and Support Guide for information about how to download the
NVSRAM software.
Note: Obtain the latest dual-controller NVSRAM software from
http://www.ibm.com/servers/storage/support/disk/.
Handle
Guide pin
Notch
Figure 38. Removing a controller
64 System Storage DS3200 Storage Subsystem: Installation, User’s, and Maintenance Guide