In AdvancedCopy Manager, replication processing must be performed while volumes are unmounted. Therefore, when replication is executed, processing to mount and unmount the volume is performed by the pre-processing and post-processing scripts respectively.
The replication processing is not executed when the volume can not be unmounted.
For details of the pre-processing and post-processing, refer to "Appendix C Pre-processing and Post-processing of Replication".
Replication pre-processing and post-processing need to be customized when operational requirements change.
For example:
When replication target is a volume group.
For specific operational requirements, you want to avoid the unmount/mount processing of the volume where a file system is constructed
If you want to add special pre-processing or post-processing
Refer to Appendix C Pre-processing and Post-processing of Replication for information on the customization.
Note
The pre-processing and post-processing are not performed in case of replicating a group.
Unmount all the volumes in the group before replication, and mount all the volumes after replication.
It is also necessary to deactivate a volume group (LVM) before it is used as a replication destination. It is then necessary to reconfigure the volume group after the copy is created.
Refer to "The reconfiguration of the volume group" in "7.8.2 Replication in units of physical disks" for information on the reconfiguration of a volume group.
It is also necessary to configure a disk group before a VxVM volume is used as a replication destination. It is necessary to reconfigure the disk group after the copy is created.
Refer to "7.8.2 Replication in units of physical disks" and "Reconfiguring the disk group (for replication between servers)" of "7.9 VxVM Volume Operation" for information on the usage and the reconfiguration of a disk group.
Point
The script may need to be updated after an upgrade of AdvancedCopy Manager.
Therefore, you should check the script after any upgrade to ensure it is compatible with newer versions.
