Powering Down The Disk Array; Planned Power Off; Emergency Power Off - HP StorageWorks XP12000 - Disk Array Owner's Manual

Powering down the disk array

Two situations may arise when you need to power down the system:
•

Planned power off

•

Emergency power off

Planned power off
Occasionally, you may need to plan a site power outage, such as during alterations
to the data center, 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 array.
Do not attempt to power down the disk array other than during an emergency.
Emergency power off
In an emergency, it is critical to remove power to the disk array as quickly as possible.
CAUTION:
Performing the emergency power off procedure immediately shuts down the disk array,
neglecting the array's normal power off sequence. Jobs in process are aborted and
their integrity after recovery is not guaranteed. Use this power off 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 performing the emergency power
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
40 Operations