HP StoreOnce 4900 Service And Maintenance Manual page 21

1. Power off the HPE StoreOnce Backup system and, observing the safety and antistatic
procedures documented in the HPE ProLiant Servers user guides, remove the cover from
the HPE StoreOnce Backup system, as described in the appropriate HPE ProLiant
Maintenance and Service Guide.
2. Locate the p1228 controller card and detach the cables connecting it to the SuperCapacitor
and to the external SAS storage. (The StoreOnce 4900 Backup has two RAID cards; be
sure to identify which slot contains the failed card.)
3. Unclip the blue retaining latch on the PCIe card (1 and 2) and remove the PCIe card (3).
Figure 5 Removing a p1228 card
4. Move the cache module from the failed p1228 card to the new card in case there is any data
that has not been written to disk. (Do not disconnect the superCapacitor from the cache
module.)
5. Install the new p1228 card (1) and check that it is seated properly. Close the blue PCIe card
retaining latch (2).
Figure 6 Inserting a p1228 card
6. Make sure the card is connected to the SuperCapacitor module and to the external SAS
data storage.
Replacing the HP p1228 controller 21