Backup Units; Installing A Bbu; Required Tools; Preliminary Steps - Fujitsu PRIMERGY TX120 S3 Upgrade And Maintenance Manual

Expansion cards and backup units
9.3

Backup Units

The Backup Unit backs up the memory contents of the connected SAS RAID
controller in the event of a power failure.
The server offers different backup units depending on the used RAID controller:
– BBU (Battery Backup Unit)
– FBU (Flash Backup Unit)
9.3.1

Installing a BBU

Upgrade and Repair Units (URU)
Average task duration: 5 minutes
V
CAUTION!
For further safety information, please refer to
page 37.
9.3.1.1

Required tools

Preliminary and concluding steps: tool-less
●
Installing a BBU: tool-less
●
9.3.1.2

Preliminary steps

Before installing a BBU, perform the following steps:
Ê Disable boot watchdog functionality as described in section
SVOM boot watchdog functionality" on page
Ê Shut down the defective server as described in section
server" on page
Ê Disconnect the AC power cord from the system.
Ê Remove the server cover as described in section
page 61.
188
58.
Upgrade and Maintenance Manual
"Important information" on
"Disabling
80.
"Shutting down the
"Opening the server" on
TX120 S3