HP StorageWorks XP12000 HP StorageWorks XP12000 Disk Array owner's guide (AE00 - Page 43

Automatic restart when power is restored

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Automatic restart when power is restored CAUTION: As with all sophisticated electronic equipment, unstable power conditions during a restart can cause problems. 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, follow the manual restart procedure only after power has been restored and verified stable. 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-SYSTEM 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: Powering on the disk array can take up to 10 minutes and is complete only when the SUB-SYSTEM READY LED turns green. To enable automatic restart: • Move the AUTO PS-ON ENABLE/DISABLE switch to the ENABLE position. HP StorageWorks XP12000 Disk Array 43

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Automatic restart when power is restored
CAUTION:
As with all sophisticated electronic equipment, unstable power conditions during a
restart can cause problems. 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 con
fi
gured for manual restart, meaning
the POWER ENABLE switch on the control panel is in the DISABLE position. After a
power outage, follow the manual restart procedure only after power has been restored
and veri
fi
ed stable.
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-SYSTEM MESSAGE may turn amber if the disk array is not con
fi
gured to
“phone home,” signifying a SIM was generated because of the power outage.
•
SUB-SYSTEM READY turns green, signifying the system is ready.
CAUTION:
Powering on the disk array can take up to 10 minutes and is complete only when
the SUB-SYSTEM READY LED turns green.
To enable automatic restart:
•
Move the AUTO PS-ON ENABLE/DISABLE switch to the ENABLE position.
HP StorageWorks XP12000 Disk Array
43