APC RAID Subsystem SCSI-SATA II Specifications Page 65

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Falcon 24 Bay SCSI-SATA Installation and Hardware Reference Manual
4.4 Power Off Procedure
To power off the Falcon subsystem, please follow these steps:
NOTE:
When powering off the Falcon subsystem, please ensure that no time-
consuming processes, like a logical drive parity check or a Media Scan,
are running.
1. Stop I/O access to the system.
Use the software provided on the host computer to stop all I/O accesses to the
Falcon subsystem. Please refer to the documentation that came with your
application servers and operating systems.
Some operating systems may require “unmounting” disk volumes (mapped LUNs)
before powering off the array.
2. Flush the cache.
Usually the cached writes will be distributed in a short time. You may also use the
“Shutdown Controller” firmware function to flush all cached data. This prepares the
RAID subsystem to be powered down.
3. Turn off the power.
Turn off the power switch at the rear panel of the Falcon RAID subsystem. Once
the RAID subsystem has been powered off, other devices connected to the subsystem
may be powered down.
4-14
Power Off Procedure
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