HP NonStop NS manual Procedure to Recover From a Power Failure, Setting System Time

Power Failures: Preparation and Recovery Procedure to Recover From a Power Failure

Procedure to Recover From a Power Failure

After power is restored:

1.Power on the system using OSM LLL described in Powering On a System on page 15-2.

2.Log on to the OSM Service Connection and check the status of all system components to make sure they are started.

3.Use SCF commands to check the status of external devices and, if necessary, to restart any external devices to bring them back online.

Setting System Time

Setting the system time is not normally required following a power failure. System time is maintained by a time-of-day battery in the p-switch, IOAM, or VIO logic board that is not affected by a power outage. If required, however, you can set the system time, either programmatically or by using the TACL command interpreter. Refer to the Guardian Procedure Calls Reference Manual or the TACL Reference Manual.

Related Reading

For more information about preparing for and recovering from power failures:

•The effect of power failures on NonStop NS-series servers, see the NonStop NS-Series Planning Guide.

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The ride-through time, see the SCF Reference Manual for the Kernel Subsystem.

The TACL SETTIME command, see the TACL Reference Manual.

Setting system time programmatically, see the Guardian Procedure Calls Reference Manual.

Removing, installing, and recycling batteries, see the documentation provided for the type of batteries used in the UPSs.

HP Integrity NonStop NS-Series Operations Guide—529869-005

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