This section provides notes on synchronous replication.
Volume group operation under synchronous processing
If the replica volume is a volume group, do not execute the vgchange (1M) command under synchronous processing (EC/REC) execution. If this occurs and the replica volume is inactive then it cannot be reactivated. Additionally, it will not be possible to perform commands including those to stop synchronous processing, execute replication and cancel replication. If accidentally inactivated, use ETERNUS Web GUI or similar to forcibly stop synchronous processing, and then activate the copy destination volume.
