HP NonStop NS manual Recovery Operations for a System Hang

Processors and Components: Monitoring and	Recovery Operations for a System Hang
Recovery

•To reload a multiple processors, use the Multi-Resource Actions dialog box (available from the Display menu of the OSM Service Connection).

1.In the Multi-Resource Actions dialog box, select Logical Processor from the Resource Types list. All Logical Processors in the system will be displayed in the right-hand pane.

2.Select Reload from the Action list under Selection Criteria.

3.From the list of Logical Processors, select the ones you want to reload and click Add to move them to the lower list (you can select and add one at a time, or Ctrl-click to select more than one).

4.Once all the processors you want to reload (and only those you want to reload) are in the lower list, click Perform Action.

5.Click OK to the dismiss the confirmation dialog box.

6.In the Logical Processor Reload Parameters dialog box (same dialog box pictured in procedure for reloading a single processor), select the appropriate options. See OSM online help for information about the options.

7.Click OK.

Recovery Operations for a System Hang

If a system hang occurs on an NS-series server, you no longer have to choose between taking the time to dump the system or quickly loading the system without the benefit of getting the dump information. You can now load processor 0 or 1 while excluding one processor element (PE) in that processor. This allows you to reload the rest of the processors, get the system running as soon as possible, then take a dump of the PE that was excluded from the load operation to send to your service provider for analysis of the problem.

After a system hang has occurred, under the direction of your service provider, recovery operations might include:

1.Enabling System Freeze (see Enabling/Disabling Processor and System Freeze on page 9-15).

2.Freezing the System and Freeze-Enabled Processors on page 9-15.

3.Start the system by loading Processor 0 or 1, as described in Performing a System Load From a Specific Processor on page 15-11.You can omit one Blade Element from the load operation, to dump after the system is running. You can also dump the remaining processors as needed—dump the entire processor before reloading, or reload and omit Blade Element to dump later. For more information, see Dumping a Processor to Disk on page 9-15.

4.Disabling System Freeze (see Enabling/Disabling Processor and System Freeze on page 9-15).

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

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