Cluster Server 8.0 Agent for EMC SRDF/Star Configuration Guide - Windows

The following are important implementation guidelines for the SRDF/Star agent:

• Set the OnlineTimeout, Offline Timeout, and OnlineRetrryLimit attributes for the SRDFStar resource such that its entry points do not time out. If you must set them, so that they do timeout, ensure that they are automatically restarted.

• If HaltOnOffline is set to 1, then the SRDFStar agent takes a long time to go OFFLINE because the symstar halt command is invoked by the offline entry point. This means that the system reboot and execution of the hastop -all command also takes a long time. Set HaltOnOffline in these cases to 0. However, in case of planned failover, before switching the workload site to another site, set HaltOnOffline to 1 to prevent data loss.

• The info entry point runs periodically as defined by the InfoInterval attribute. InfoInterval is set to 600 seconds by default. Set it to a different value according to your requirements.

• The info entry point can also be invoked manually to get the state of target sites and STAR using the following command:

  hares -refreshinfo SRDFStarResName -sys SysName

• The value of ResourceInfo can be displayed using the following command:

  hares -value SRDFStarResName -sys SysName

• The value of ResourceInfo can be flushed using the following command:

  hares -flushinfo SRDFStarResName -sys SysName