Dell PowerEdge RAID Controller H700 - Manual (Page 63)

Installing and Configuring Hardware 63
Transferring a TBBU or TNVC Between PERC
H800 Cards
The TBBU or TNVC provides uninterrupted power supply for up to 48 hours
to a cache memory module. If the controller fails as a result of a power failure,
you can move the TBBU or TNVC to a new controller and recover the data.
The controller that replaces the failed controller should not have any prior
configuration.
Perform the following steps to replace a failed controller with data in the
TBBU:
1 Perform a controlled shutdown on the system in which the PERC H800 is
installed, as well as any attached storage enclosures.
2 Disconnect the system from the electrical outlet and remove the system
cover.
3 Remove the controller that has the TBBU or TNVC.
4 Remove the TBBU or TNVC from the controller.
5 Insert the TBBU or TNVC in the new controller.
For more information on installing the TBBU or TNVC, see "Installing the
TBBU or TNVC on a PERC H800 Adapter" on page 61.
6 Insert the replacement controller in the system.
See the relevant sections on installing controllers under "Installing the
PERC H700 and H800 Adapters" on page 41.
7 Reconnect all external storage enclosures as they were originally connected
and turn on the enclosures.
8 Replace the system cover, re-connect the system to the electrical outlet
and turn on the system.
The controller flushes the cache data to the virtual disks.
PERC7.2_UG.book Page 63 Thursday, March 3, 2011 2:14 PM