Battery Backed Write Cache Assembly - Compaq 230039-001 - StorageWorks NAS Executor E7000 Model 904 Server Maintenance And Service Manual

Removal and Replacement Procedures
Figure 48: Removing the rear fan cage
Reverse steps 1 through 8 to replace the rear fan cage.

Battery Backed Write Cache Assembly

The battery-backed write cache (BBWC) assembly contains the battery-backed write cache
enabler, the 5i Plus Memory Module, and the cable that connects the two.
Note:
must stay connected. Unplugging the cable deletes all the data in the cache.
To remove the BBWC assembly:
1. Power down the server. Refer to "Powering Down the Server" in this chapter.
2. Extend the server from the rack. Refer to "Extending the Rack from the Server" in this
3. Remove the rear access panel. Refer to "Opening and Removing the Rear Access Panel"
4. Remove the front access panel. Refer to "Removing the Front Access Panel" in this
5. Remove the SCSI cables. Refer to "SCSI Cables" in this chapter.
6. Remove the PCI-X expansion boards. Refer to "Non-Hot-Plug PCI-X Expansion Boards"
7. Remove the PCI-X expansion board basket. Refer to "PCI-X Expansion Board Basket" in
8. Remove the memory boards. Refer to "Removing a Memory Board" in this chapter.
9. Remove the processor air baffle. Refer to "Processor Air Baffle" in this chapter.
10. Remove the front fan cage. Refer to "Front Fan Cage" in this chapter.
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The BBWC enabler and the 5i Plus Memory Module must be removed together, and the cable
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NAS e7000 v2 Maintenance and Service Guide