If you use IMF for intelligent resource monitoring, review the following recommendations. Depending on the value of the FSType attribute, you must set the MonitorFreq key value of the IMF attribute as follows:
FSType attribute value is vxfs:
For VxFS version 5.1 SP1:
You can either set the MonitorFreq to 0 or a high value. Setting the value of the MonitorFreq key to a high value will ensure that the agent does not run the monitor function frequently. Setting the MonitorFreq key to 0 will disable the traditional monitoring while IMF monitoring is in progress. Traditional monitoring will be done only after receiving the notification for a resource. However, if the value of the AccessPermissionChk attribute is set to 1, then set the MonitorFreq key value to the frequency at which you want the agent to run the monitor function.
For VxFS versions 5.1 or earlier:
With VxFS versions prior to 5.1 SP1, VCS IMF only monitors file systems getting mounted and unmounted. To monitor other events, you must enable poll-based monitoring. Set the MonitorFreq key value to the frequency at which you want the agent to run the monitor function.
See the Veritas Cluster Server Administrator's Guide for the IMF attribute description.