System information

174 Upgrade and Maintenance Manual RX2520 M1
Expansion cards and backup units
9.5 Backup Units
9.5.1 Basic information
The Flash Backup Unit (FBU) backs up the memory contents of the connected
SAS RAID controller in the event of a power failure. The PRIMERGY
RX2520 M1 server can accommodate up to two backup units.
Figure 78: FBU mounting positions
9.5.2 Installing a FBU
1 Mounting position for first FBU
2 Mounting position for second FBU
Upgrade and Repair Unit
(URU)
Hardware: 5 minutes
Tools: Phillips PH1 / (+) No. 1 screw driver