LaCie 12big Rack Fibre 8 Manual de usuario descargar pdf (Pagina 51)

LaCie 12big Rack Fibre 8 Operation

User Manual page 51

3.6. Power Down

The enclosure can be powered down at any time and if writeback

cache contents are present, the contents will be preserved by the

internal backup battery. However, you should not power down the

RAID Controller(s) if there is I/O activity in progress. The preference

would be to wait until the cache contents has been written to the

disks before completing the shutdown.

If the enclosure is left in powered off state for an extended period,

the battery will discharge and the cached data will be lost. If the

backup battery is allowed to discharge, upon power up the write-

back cache will be disabled; however once the battery is recharged,

writeback cache is automatically re-enabled.

To ensure that the cache is ﬂushed to disks, stop all host I/O opera-

tions from the applications. Allow sufﬁcient time for the controller to

write the cache data to the drives. This will prevent the battery from

being discharged.

1. From the StorView main screen, click the Controller icon. The

Controller Information screen appears, where you will click the

Shutdown button under that controller’s column. If dual con-

trollers are in use or installed be sure to click the Shutdown but-

ton under each controller. This will provide a graceful shutdown

for the RAID Controllers.

IMPORTANT INFO: You may also perform a graceful shutdown

of the controllers from the VT-100 RAID Conﬁguration Utility. As

both interfaces support this feature.

2. Once the system has completed its shutdown, power down the

enclosures by switching the power cooling module switches to

the OFF positions. To completely isolate power from the enclo-

sure, disconnect the power cords.

Fig. 66 - Embedded StorView Setup Wizard - Initialize

Systems Screen

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LaCie 12big Rack Fibre 8 Manual de usuario Pagina 51