TX120 S3 Upgrade and Maintenance Manual 211
Expansion cards and backup units
Ê If the BBU is shown as bad or defective, do not power off the server for at
least 8 hours to allow the charge and calibration cycles to finish.
Ê If the BBU status does not change after 8 hours, please try to initiate the
recalibration process manually using the ServerView RAID Manager.
I If this procedure still does not fix the BBU status, please contact your
local Fujitsu customer service partner.
9.3.6 Replacing an FBU
V CAUTION!
Do not throw FBUs into the trash can. Batteries must be disposed of in
accordance with local regulations concerning special waste.
For further safety information, please refer to section "Environmental
protection" in the PRIMERGY TX120 S3 Server Operating Manual.
9.3.6.1 Required tools
● Preliminary and concluding steps: tool-less
● Replacing an FBU: tool-less
9.3.6.2 Preliminary steps
Before replacing an FBU, perform the following steps:
Ê Disable boot watchdog functionality as described in section "Disabling
SVOM boot watchdog functionality" on page 80.
Ê Locate the defective server as described in section "Locating the defective
server" on page 50.
Ê Shut down the defective server as described in section "Shutting down the
server" on page 58.
Ê Disconnect the AC power cord from the system.
Upgrade and Repair Units (URU)
Average task duration: 10 minutes
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