If Ac Power Fails; Ac Power Failure With Automatic Shutdown Enabled; If Ac Power Does Not Return - HP 9000 V-Class Operator's Manual

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Power

If ac power fails

If the automatic shutdown feature has been enabled, follow the

procedure in "ac power failure with automatic shutdown enabled". If the

automatic shutdown feature is disabled, follow the procedure in "ac

power fails without automatic shutdown enabled" on page 65.

ac power failure with automatic shutdown

enabled

1. You will hear an alarm (a single beep every 10 seconds). If desired,

CAUTION

Do NOT press the switch on the PowerTrust UPS labeled Output On/

Output Off. Pressing this switch would shut off power to the node.

2. With the OS properly conﬁgured for UPS, you will see UPS messages

3. The indicators on the PowerTrust UPS front panel labeled AC Output

If ac power does not return within the time speciﬁed by the parameter,

shutdown_delay_mins (default = 1 minute), the shutdown(1M)

command with the -h option is executed. Normal shutdown processing

occurs. In case the shutdown process changes, the reboot command with

the halt option is executed after an interval speciﬁed by

shutdown_delay_mins (default = 5 minutes).

CAUTION

Do not turn off power yourself, no matter what messages you see on the

console. Power will be turned off automatically as part of the automatic

shutdown. If you turn off power yourself, the system may be powered off

automatically as it is rebooting, causing a hard crash.

you can turn off the auditory alarm by pressing the switch on the

PowerTrust UPS labeled Silence Alarm.

on the console. See Appendix A in PowerTrust System Guide (PN

3329-90002) for explanations of the messages.

and Battery Power will be lit.

Chapter 6

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