Removal and replacement procedures 49
5.
Disconnect the cable, and then remove the battery pack.
To replace the component, reverse the removal procedure.
Recovering data from the battery-backed write cache
If the server fails, use the following procedure to recover data temporarily stored in the BBWC.
CAUTION:
Before starting this procedure, read the information about protecting against
electrostatic discharge ("
Preventing electrostatic discharge
" on page
29
).
1.
Perform one of the following:
o
Set up a recovery server station using an identical server model. Do not install any internal drives
or BBWC in this server. (HP recommends this option.)
o
Find a server that has enough empty drive bays to accommodate all the drives from the failed
server and that meets all the other requirements for drive and array migration.
2.
Power down the failed server ("
Power down the server
" on page
25
). If any data is stored in the
cache module, a green LED on the module flashes every 2 seconds.
CAUTION:
Do not detach the cable that connects the battery pack to the cache module.
Detaching the cable causes any unsaved data in the cache module to be lost.
3.
Transfer the hard drives from the failed server to the recovery server station.
4.
Perform one of the following:
o
If the array controller has failed, remove the cache module ("
Removing the cache module
" on
page
48
) and battery pack ("
Removing the battery pack
" on page
48
) from the failed array
controller, and install the cache module and battery pack on an array controller in the recovery
server.
o
If the server has failed, remove the controller ("
Half-length expansion board
" on page
50
, "
Full-
length expansion board
" on page
50
), cache module ("
Removing the cache module
" on page
48
), and battery pack ("
Removing the battery pack
" on page
48
) from the failed server, and
install the controller, cache module, and battery pack in the recovery server.
Содержание AX691B
Страница 12: ...Customer self repair 12 ...
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Страница 14: ...Customer self repair 14 ...
Страница 15: ...Customer self repair 15 ...
Страница 55: ...Removal and replacement procedures 55 6 Open the heatsink retaining bracket 7 Remove the heatsink ...
Страница 68: ...Cabling 68 Cabling SAS hard drive cabling Optical drive cabling ...
Страница 69: ...Cabling 69 BBWC battery cabling ...
