9.7.7 Replacing a TFM
Upgrade and Repair Unit
(URU)
Hardware: 10 minutes
Tools: Phillips PH1 / (+) No. 1 screw driver
Preliminary steps
▶
"Locating the defective server" on page 47
.
▶
"Shutting down the server" on page 49.
▶
"Disconnecting the power cord" on page 50.
▶
"Getting access to the component" on page 51.
Removing the defective TFM
▶
Remove the TFM, see "Removing the TFM" on page 376.
Installing the new TFM
▶
Install the TFM, see "Installing the TFM" on page 372.
Concluding steps
▶
"Reassembling" on page 68.
▶
"Connecting the power cord" on page 82.
▶
"Switching on the server" on page 83.
9.8 Flash backup unit (FBU)
9.8.1 Variants of FBUs and FBU cables
The FBU backs up the memory contents of the RAID controller in the event of
a power failure.
Expansion cards and backup units
378 Upgrade and Maintenance Manual TX2550 M5
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