Automatic Restart When Power Is Restored - HP StorageWorks XP12000 Owner's Manual

Caution

Automatic restart when power is restored

Caution
Caution
50
Powering on the disk array can take upwards of 10 minutes, depending on
the number of disks installed in the disk array. Power-on is complete only
when the SUB-SYSTEM READY LED turns green.
3. Move the PS ENABLE switch to the "Disable" position (opposite the
ENABLE position).
As with all sophisticated electronic equipment, unstable power conditions
during a restart can cause problems. HP recommends the use of 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
DISABLE position. After a power outage, follow the manual restart
procedure (page 49)
stable.
With automatic restart enabled, the disk array automatically restarts and
returns to service when power is restored after a power outage.
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
the disk array lost power unexpectedly.
• SUB-SYSTEM READY turns green, signifying the system is ready.
Powering on the disk array can take upwards of 10 minutes, depending on
the number of disks installed in the disk array. Power-on is complete only
when the SUB-SYSTEM READY LED turns green.
only after power has been restored and verified to be
HP StorageWorks XP12000 Disk Array Owner's Guide
(page 24) is in the