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Managing a cluster

Configuring automatic giveback

Shortening giveback time  Top

You can shorten negotiated giveback time by enabling an option (cf.giveback.check.partner) that checks whether the failed filer is already recovered and waiting for giveback, that is, waiting for disk reservation release, when you type cf giveback at the takeover filer. If the failed filer is waiting for giveback, giveback proceeds as normal; if not, giveback is canceled.

Note
This option works only with platforms booted from CompactFlash.

How to enable shorter giveback time  Top

To enable shorter giveback time, complete the following step.

Step

Action

1

Enter the following command:

options cf.giveback.check.partner on | off

The on value enables this option. The off value disables this option. This option is Off by default.

This option is On by default on platforms booted from CompactFlash.

Setting takeover delay time for CIFS clients  Top

This option specifies the number of minutes to delay an automatic giveback before terminating CIFS clients that have open files. During the delay, the system periodically sends notices to the affected workstations. If you specify 0, CIFS clients are terminated immediately.

When this option is Off, the automatic giveback is deferred until all CIFS files have been closed. This option is used only if automatic giveback is On.

How to set takeover delay time for CIFS clients  Top

To set takeover delay time for CIFS clients, complete the following step.

Step

Action

1

Enter the following command:

options cf.giveback.auto.cifs.terminate.minutes minutes

Valid values for minutes are 0 to 999, inclusive. The default is 5 minutes.

Setting takeover to terminate long-running processes  Top

This option, when on, specifies that automatic giveback should immediately terminate long running operations (dump/restore, vol verify, and so on) when initiating an automatic giveback. When this option is off, the automatic giveback is deferred until the long-running operations have completed. This option is used only if automatic giveback is On.

How to set takeover to terminate long-running processes  Top

To set takeover to terminate long-running processes, complete the following step.

Step

Action

1

Enter the following command:

options cf.giveback.auto.terminate.bigjobs on | off

The on argument enables this option. The off argument disables this option. This option is On by default.

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