IBM Partner Pavilion DS4100 manual RAID controller levers and labels

inserted into DS4100 controller slots. Unpredictable results can occur when nonmatching controller CRUs are present in the same DS4100 chassis.

vAfter the new controller in a DS4100 single-controller storage server completes the boot process, its WWNN will change. If you have any applications that rely on the previous WWNNs, such as fibre channel switch zoning definitions, you must update the applications with the new WWNNs.

vAll factory-delivered DS4100 RAID controllers are shipped with a recent version of controller firmware loaded on the RAID controller, but that firmware version might not match precisely the firmware version of the failed RAID controller you have replaced. When you replace one of the RAID controllers in the DS4100 base storage server, the newly replaced controller will automatically be updated with the controller firmware version of the existing controller in the DS4100 chassis.

However, when you replace the RAID controller in the DS4100 single-controller storage server, if the firmware version of the replacement RAID controller is determined to be incompatible with the configuration database during the boot process, the DS4100 single-controller storage server will enter a Stop State and will not allow any DS4000 Storage Manager operations to be performed. In this case, you must manually upgrade or downgrade the replacement RAID controller firmware to match the version required by the configuration database. See “Manually upgrading the firmware for the DS4100 single-controller storage server” on page 103.

vDS4100 single-controller storage server only: Do not use the RAID controller replacement procedure in this section to upgrade a DS4100 single-controller storage server to a DS4100 base storage server. Currently there is no support for upgrading a DS4100 single-controller storage server. When such support is available in the future, the DS4100 single-controller storage server upgrade kit and the revised edition of this document will provide the upgrade instructions.

Ethernet address label

Levers

Battery-access panel (on bottom)

f10ug034

Figure 70. RAID controller levers and labels

In a DS4100 base storage server, you can hot swap one controller while the other is still active. The figures in this procedure show the base storage server. If your storage server is the single-controller storage server, controller slot B will have a blank controller rather than the second controller as shown in these figures.

For information about the RAID controller cache memory and rechargeable battery, see “Cache memory and RAID controller battery” on page 75.

Chapter 5. Installing and replacing components 95