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| VCS agents to manage wide-area failover | ||
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VCS agents now 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.
VCS provides agents for other array-based or application-based solutions. This section covers the replication agents that is bundled with VVR.
See the VCS replication agent documentation for more details.
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.
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.
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.
The RVGSnapshot agent, used in fire drill service groups, takes space-optimized snapshots so that applications can be mounted at secondary sites during a fire drill operation.
Note See the Veritas Cluster Server Agents for Veritas Volume Replicator Configuration Guide for more information about the RVG, RVGPrimary, and RVGSnapshot agents.