Acronis Backup for PC - User Guide - Manual (Page 91)

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This option applies to disk-level backup. This option also applies to file-level backup when the
file-level backup is performed by taking a snapshot. (The File-level backup snapshot (p. 88) option
determines whether a snapshot will be taken during file-level backup).
The option determines whether to take snapshots of multiple volumes at the same time or one by
one.
The preset is: Enable.
When this option is set to Enable, snapshots of all volumes being backed up will be created
simultaneously. Use this option to create a time-consistent backup of data spanned across multiple
volumes, for instance for an Oracle database.
When this option is set to Disable, the volumes' snapshots will be taken one after the other. As a
result, if the data spans across several volumes, the resulting backup may be not consistent.
4.7.17 Pre/Post commands
This option is effective for Windows and Linux operating systems and PE-based bootable media.
The option enables you to define the commands to be automatically executed before and after the
backup procedure.
The following scheme illustrates when pre/post commands are executed.
Pre-backup
command
Backup Post-backup
command
Examples of how you can use the pre/post commands:

Delete some temporary files from the disk before starting backup.

Configure a third-party antivirus product to be started each time before the backup starts.

Selectively copy backups from an archive to another location. This option may be useful because
the replication configured in a backup plan copies every backup of an archive to subsequent
locations.
Acronis Backup performs the replication after executing the post-backup command. For more
information see "Sequence of operations in a backup plan" (p. 52).
The program does not support interactive commands, i.e. commands that require user input (for
example, "pause").
To specify pre/post commands
1. Enable pre/post commands execution by checking the following options:

Execute before the backup

Execute after the backup
2. Do any of the following:

Click Edit to specify a new command or a batch file

Select the existing command or the batch file from the drop-down list
3. Click OK.