The HAStoragePlus resource type is designed to make local and global file system configurations highly available. You can use the HAStoragePlus resource type to integrate your local or global file system into the Sun Cluster environment and make the file system highly available.
You can use the HAStoragePlus resource type to make a file system available to a global-cluster non-voting node. To enable the HAStoragePlus resource type to do this, you must create a mount point on the global-cluster voting node and in the global-cluster non-voting node. The HAStoragePlus resource type makes the file system available to the global-cluster non-voting node by mounting the file system in the global-cluster voting node. The resource type then performs a loopback mount in the global-cluster node.
Sun Cluster systems support the following cluster file systems:
UNIX® File System (UFS) – Uses Sun Cluster Proxy System (PxFS)
SPARC: Veritas File System (VxFS) – Uses PxFS
Sun Cluster software supports the following as highly available failover local file systems:
The HAStoragePlus resource type provides additional file system capabilities such as checks, mounts, and forced unmounts. These capabilities enable Sun Cluster to fail over local file systems. In order to fail over, the local file system must reside on global disk groups with affinity switchovers enabled.
See Enabling Highly Available Local File Systems in Sun Cluster Data Services Planning and Administration Guide for Solaris OS for information about how to use the HAStoragePlus resource type.
You can also use the HAStoragePlus resource type to synchronize the startup of resources and device groups on which the resources depend. For more information, see Resources, Resource Groups, and Resource Types.