Managing a global SFCFSHA cluster using Veritas Volume Replicator (VVR)
For information on using the VCS commands for global clusters:
See the Veritas Cluster Server Administrator's Guide.
If you have two SFCFSHA clusters configured to use VVR for replication, the following administrative functions are available:
Table:
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Migration of the role of the primary site to the remote site
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Migration of the role of the primary site to the remote site is a planned transfer of the role of primary replication host from one cluster to a remote cluster. This transfer enables the application on the remote cluster to actively use the replicated data. The former primary cluster becomes free for maintenance or other activity. |
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Takeover of the primary site role by the secondary site
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Takeover of the primary site role by the secondary site occurs when an unplanned event (such as a disaster) causes a failure, making it necessary for the applications using the replicated data to be brought online on the remote cluster. |
VCS agents manage external objects that are part of wide-area failover. These objects include replication, DNS updates, and so on. These agents provide a robust framework for specifying attributes and restarts, and can be brought online upon fail over.
Table:
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VCS replication agents bundled with VVR
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Description |
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DNS agent
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The DNS agent updates the canonical name-mapping in the domain name server after a wide-area failover. See the Veritas Cluster Server Bundled Agents Reference Guide for more information about the agent. |
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RVG agent
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The RVG agent manages the Replicated Volume Group (RVG). Specifically, it brings the RVG online, monitors read-write access to the RVG, and takes the RVG offline. Use this agent when using VVR for replication. RVGPrimary agent The RVGPrimary agent attempts to migrate or take over a Secondary to a Primary following an application failover. The agent has no actions associated with the offline and monitor routines. |
VCS provides agents for other array-based or application-based solutions.For more information about the RVG and RVGPrimary agents.
See the Veritas™ Cluster Server Bundled Agents Reference Guide.
Note: |
The RVGSnapshot agent is not supported for SFCFSHA. |
