HP StorageWorks XP12000 Owner's Manual page 29

Table 3. Control panel functions (continued)
Item Label
12 AUTO PS-ON
ENABLE/DISABLE
XP12000 Hardware
Indicator Description
Switch Used to enable the automatic power on restart feature,
which specifies how the disk array is powered on when
the AC power is turned on or restored after a power
outage.
Enable: When the AC power is turned on, the disk
array is powered on automatically.
Caution: As with all sophisticated electronic
equipment, unstable power conditions during a restart
can cause problems. This switch should be in the
ENABLE position 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, keep this
switch in the DISABLE position. After a power outage,
follow the manual restart procedure only after power
has been restored and verified to be stable.
Disable: The disk array must be powered on manually,
using the PS ON/OFF switch
control interface (PCI) (mainframe only).
Caution: Do not change the switch position unless
directed to do so by HP service personnel.
(10) or the host power
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