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

Automatic restart when power is restored
CAUTION:
As with all sophist
icated electronic equipment, unstable power conditions during a
restart can cause p
roblems. HP recommends automatic power on restart only if the
power to the disk array is subject to power conditioning equipment, such as a UPS, to
ensure that the power restored to the disk array is stable. If your site does not have a
UPS, HP recommends that the disk array be configured for manual restart, meaning
the POWER ENABLE switch on the control panel is in the DISABLE position. After a
power outage, f
ollow the manual restart procedure only after power has been restored
and verified sta
ble.
With automatic restart enabled, the disk array automatically restarts and returns to
service when power is restored.
During the automatic restart, the following LED power sequence occurs:
• BS-ON turns amber.
• PS-ON turns green.
• SUB-SY STEM MESSAGE may turn amber if the disk array is not configured to
“phone home,” signifying a SIM was generated because of the power outage.
• SUB-SYSTEM READY turns green, signifying the system is ready.
CAUTION:
Poweringonthediskarraycantakeupto10minutesandiscompleteonlywhen
the SUB-SYSTEM READY LED turns gr een.
To enable automatic restart :
• Move the AUTO PS-ON ENABLE/DISABLE switch to the ENABLE position.
HP StorageWorks XP12000 Disk Array
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