Question
Can Volume Shadow Copy (VSS) be Used with DataKeeper Volumes?
Answer
VSS Shadow Copy can be enabled for DataKeeper volumes. However, the following guidelines apply:
VSS snapshot images must not be stored on a DataKeeper volume. Storing VSS snapshots on a DataKeeper volume will prevent DataKeeper from being able to lock the volume and switch it over to another node.
When a DataKeeper volume is switched or failed over, any previous snapshots that were taken of the DataKeeper volume are discarded and cannot be reused.
VSS snapshot scheduling is not copied between the DataKeeper servers. If snapshots are scheduled to be taken twice a day on the primary server and a switchover occurs, this schedule will not be present on the backup server and will need to be redefined on the backup server.
When switching back to a server where snapshots were previously enabled, VSS snapshots are automatically re-enabled; HOWEVER, any previous snapshots that were taken of the DataKeeper volume are discarded and cannot be reused.
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