HP StorageWorks XP12000 Disk Array owner's guide (AE002-96029, October 2006)

Powering down the disk array
Two situations may arise when you need to power down the system:
• Planned powe
roff
• Emergency power off
Planned power off
Occasionally, you may need to plan a site power outage, such as during alterations
to the data c enter, inspections, or work by the electric company. If a scheduled power
outage will affect the disk array, contact your HP support representative to schedule a
planned power off.
CAUTION:
Only a trained HP support representative can shut down and power off the disk a rray.
Do not at tempt to power down the disk array ot h er than during an em ergency.
Emergency power off
In an emergency, it is critical to remove power to the disk array as quickly as possible.
CAUTION:
Performingtheemergencypoweroffprocedureimmediatelyshutsdownthediskarray,
neglecting the array’s normal power off sequence. Jobs in process are aborted and
their integrity after r ecovery is not guaranteed. Use this po wer o ff method only in
an emergency. Only a qualified HP support representative can reset the switch and
restore power to the disk array .
Emergency situations in which you should consider per forming the emergency p ower
off procedure are:
• A physical location catastrophe such as a flood, hurricane, tornado, or
earthquake
• Any circumstance that presents the threat of injury or death to a person
• You detect any smoke, abnormal loud noise, or smell coming from the disk array
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Operations