A.2 Pre-processing and Post-processing of Backup

Backup using AdvancedCopy Manager must be performed while other processes are prevented from accessing the transaction volume.

For this reason, the transaction volume is unmounted during pre-processing.

Tasks performed in the post-processing are generally determined by what has been done in the pre-processing.

Table A.1 Backup pre-processing and post-processing
Preprocessing	Post-processing
A transaction volume was unmounted.	Remount the transaction volume.
Take no action.	Take no action.

If special pre-processing or post-processing is required, you need to add the additional instructions to the shell script.

When customizing a script, strictly observe the following rules regarding error codes:

Table A.2 Error code rules
Error code	Usage
0-99	Unusable (these are reserved for AdvancedCopy Manager)
100-255	Usable

Note

If pre-processing failed, execute swstsrsemtch (Resource match command) because the consistency of resource information may be incomplete.
For backing up the volume group that includes the logical volume in which the file system has been built, refer to "Backup a volume group". The pre-processing and post-processing scripts have to be customized to execute unmount/mount processing for all logical volumes across which the file system exists.