About HA-SAM

High availability Sun Storage Archive Manager (HA-SAM) is an interface between a Sun QFS file system and Oracle Solaris Cluster software running on Oracle Solaris for SPARC and x64 hardware. The HA-SAM Oracle Solaris Cluster agent periodically monitors the health of SAM-QFS archiving operations on the primary node. In the event of an unrecoverable problem, the agent switches the SAM-QFS archiving and staging operations to a healthy node. Both voluntary and involuntary failover are supported on active-passive configurations. Only two-node active-passive configurations are supported.

For tape archiving and staging to continue after failover, tape drives must be visible to all nodes in a cluster on which HA-SAM is running, but they should not be configured as SAM-QFS shared drives. HA-SAM also supports disk archiving with disk archives visible to all nodes in a cluster.

HA-SAM depends on the Sun QFS Oracle Solaris Cluster agent and assumes that the Sun QFS file systems are mounted and managed by the Sun QFS agent. HA-SAM requires that the SAM-QFS catalog and stager directories be linked from the standard location to a directory in an HAStoragePlus file system. HA-SAM should be a resource in a resource group that contains Sun QFS and catalog resources.

In order to configure the HA-SAM Oracle Solaris Cluster agent, the Sun QFS Oracle Solaris Cluster agent must already be configured. These instructions assume that you have Sun QFS configured in an Oracle Solaris Cluster environment using a shared Sun QFS file system as described in Chapter 4, Configuring Sun QFS Shared File Systems With Oracle Solaris Cluster.