
212 Sun StorageTek SAM Archive Configuration and Administration Guide • Version 4, Update 6, 04/07
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 Sun StorageTek SAM shared drives. HA-SAM also supports disk
archiving with disk archives visible to all nodes in a cluster.
HA-SAM depends on the Sun StorageTek QFS Sun Cluster agent and assumes that
the Sun StorageTek QFS file systems are mounted and managed by the Sun
StorageTek QFS agent. HA-SAM requires that the Sun StorageTek SAM catalog and
stager directories be linked from the standard location to a directory in a
HAStoragePlus file system. HA-SAM should be a resource in a resource group that
contains Sun StorageTek QFS and catalog resources.
In order to configure the HA-SAM Sun Cluster agent, the Sun StorageTek QFS Sun
Cluster agent must already be configured. These instructions assume that you have
Sun StorageTek QFS configured in a Sun Cluster environment using a shared Sun
StorageTek QFS file system as described in the Sun StorageTek QFS Installation and
Upgrade Guide and the Sun StorageTek QFS File System Configuration and
Administration Guide.
Note – HA-SAM is available only with Sun StorageTek SAM and Sun StorageTek
QFS software versions 4U6 and later.
Before You Begin
The following are requirements and restrictions that you should be aware of before
configuring this feature.
■ The nodes on which HA-SAM will be configured should be running the same
version of Solaris (9 or 10) and Sun Cluster (3.1u4, 3.2, or newer). Mixed versions
of Solaris or Sun Cluster software are not supported. No operating system other
than Solaris is supported. Be sure to apply latest patches for the Sun Cluster
software if you are using version 3.1u4 with HA-SAM.
■ The nodes in the cluster running HA-SAM must have the same type of
architecture: SPARC or x64. Mixed architectures are not supported.
■ No more than two nodes can be configured.
■ Only active-passive configurations are supported, not active-active.
■ Active I/O to HA-SAM file systems is supported only on the active node of an
HA-SAM file system.
■ Only shared Sun StorageTek QFS file systems are supported. Both ma- and ms-
type file systems are supported. Stand-alone Sun StorageTek QFS environments
are not supported.
■ No software volume managers are supported with this configuration.
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