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In Share Out mode, you can make the Volume Server or the Volume Client systems highly available using VCS. Multiple clustering combinations exist in this configuration.
The SAN disk group is the lowest resource in the application dependency graph for shared storage on the Volume Server systems. Similarly the SAN volume is the lowest resource in the application dependency graph for shared storage on the Volume Client systems.
Configuring application service groups.
Note
Symantec recommends that you configure the critical application service group on the Volume Server systems and the off-host processing applications in their service groups on the Volume Client systems.
Two VCS configuration options exist in the Share Out mode:
A Volume Client and Volume Server cluster, note that this cluster does not support fencing
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In the Share Out mode, when Volume Server and Volume Client systems are in the same cluster, maintain the start order of the SAN disk group resource and the SAN volume resources. For this, Symantec recommends the use of the service group dependencies. Make the service group containing the SAN disk group the child service group and the service group containing the SAN volume the parent service group. It is recommended that the link between the two service groups be an Online Global Firm type. For more information on service group dependencies see the section on service group dependencies in the Veritas Cluster Server User's Guide.
Use the RemoteGroup agent to create a dependency between the Volume Client group and the Volume Server group.
See Resource dependencies for volume serving mode.
Two clusters accessing shared storage
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