334 Upgrade and Maintenance Manual TX2550 M4
Expansion cards and backup units
9.7 Flash Backup Units (FBU)
The FBU backs up the memory contents of the RAID controller in the event of
a power failure.
Up to two FBUs or one FBU and one Dual microSD 64GB Enterprise can be
installed in the system.
Depending on the used controller different FBUs are available.
9.7.1 Installing a FBU
9.7.1.1 Preliminary steps
Ê "Shutting down the server" on page 52
Ê "Disconnecting the power cord" on page 53
Ê "Getting access to the component" on page 54
Upgrade and Repair Unit
(URU)
Hardware: 10 minutes
Tools: tool-less
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