About HA-QFS File Systems

HA-QFS (highly available QFS) file system is a non-archiving HA shared or stand-alone Sun QFS file system running on cluster devices and configured to be part of a Sun Cluster resource group. Using SAM-QFS Manager, you can configure Sun QFS on cluster devices. You must use the Sun Cluster Manager tool to configure the devices as part of a Sun Cluster resource group.


Note - SAM-QFS Manager includes ha in the description of file systems that are configured on cluster devices even if the devices are not part of a resource group and the file systems are therefore not truly highly available file systems.



Note - The browser interface does not support shared archiving HA file systems.


For stand-alone HA-QFS, the Sun QFS file system is configured on several Sun Cluster nodes. Only one node at a time performs file system input and output processing.

For shared HA-QFS, all hosts within the shared Sun QFS configuration must be nodes within the Sun Cluster environment. The Sun Cluster environment controls metadata server failover.