172 Upgrade and Maintenance Manual
RX200 S8
Expansion cards and backup units
9.5 Backup units (BBU/FBU)
9.5.1 Basic information
The server offers different backup units depending on the used RAID controller:
– BBU (Battery Backup Unit)
– FBU (Flash Backup Unit)
The backup unit backs up the memory contents of the connected SAS RAID
controller in the event of a power failure. You can install one backup unit.
9.5.2 Installing a BBU
9.5.2.1 Preliminary steps
Ê "Disabling SVOM boot watchdog functionality" on page 64
Ê "Shutting down the server" on page 46
Ê "Disconnecting the server from the mains" on page 47
Ê "Getting access to the component" on page 47
Ê "Removing the riser module 3" on page 60
9.5.2.2 Connecting the BBU cable to the BBU
I The BBU cable is available in different length. You need the short cable
if the used RAID controller is installed in slot 4.
V CAUTION!
Do not connect the cable using excessive force, the connector is weak.
Upgrade and Repair Unit
(URU)
Hardware: 15 minutes
Tools: tool-less
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