How to Tune Sun Cluster HA for NFS Method Timeouts

The time that Sun Cluster HA for NFS methods require to finish depends on the number of paths that the resources share through the dfstab.resource file. The default timeout for these methods is 300 seconds.

As a general guideline, allocate 10 seconds toward the method timeouts for each path that is shared. Default timeouts are designed to handle 30 shared paths.

• If the number of shared paths is less than 30, do not reduce the timeout.

• If the number of shared paths exceeds 30, multiply the number of paths by 10 to compute the recommended timeout. For example, if the dfstab.resource file contains 50 shared paths, the recommended timeout is 500 seconds.

Update the following method timeouts if the number of shared paths is greater than 30.

• Prenet_start_timeout

• Postnet_stop_timeout

• Start_timeout

• Stop_timeout

• Validate_timeout

• Update_timeout

• Monitor_Start_timeout

• Monitor_Stop_timeout

• Monitor_Check_timeout

To change method timeouts, use the scrgadm -c option, as in the following example.

% scrgadm -c -j resource -y Prenet_start_timeout=500