Scripts for automated processing
You can run scripts to prepare and resume custom application and file systems before and after you create a snapshot of the data.
To prepare custom application and file systems for volume-level snapshots, you can use preprocessing (PRESNAPSHOTCMD) and postprocessing (POSTSNAPSHOTCMD) scripts. If specified, these scripts run during backup processing. For example, you can use the PRESNAPSHOTCMD script to quiesce an application and the POSTSNAPSHOTCMD to resume it.