Volumes in other domains (cluster systems or single servers) connected to a SAN can be recognized as volumes (shadow volumes) and accessed.
Proxy volumes and replications created with the copy function of a disk unit can also be recognized as shadow volumes and accessed in exchange for the volumes used in the service. Using shadow volumes on a server that does not belong to the domain running the service can realize the backup operation that does not impose loads on the domain running the service. Additionally, you can configure a backup server that consolidates backup of volumes from multiple domains in a SAN environment, and a disaster recovery system that conducts the service alternatively at a remote place in the unlikely event that disaster occurs.
This section describes the shadow volume feature.
Note
SAN Boot Environment
System volumes in a SAN boot environment are not recognized as shadow volumes.
