User Guide

Copyright © Acronis, Inc., 2000-2009 51
If the Volume Shadow Copy Service option is enabled, the commands' execution and the Microsoft
VSS actions will be sequenced as follows:
"Before data capture” commands -> VSS Suspend -> Data capture -> VSS Resume -> "After data
capture" commands.
Using the pre/post data capture commands, you can suspend and resume a database or application
that is not compatible with VSS. As opposed to the Pre/Post commands (p. 49), the pre/post data
capture commands will be executed before and after the data capture process, which takes seconds,
while the entire backup procedure may take much longer, depending on the amount of data to be
backed up. Therefore, the database or application idle time will be minimal.
To specify pre/post data capture commands
1. Enable pre/post data capture commands execution by checking the following options:
o Execute before the data capture
o Execute after the data capture
2. Do any of the following:
o Click Edit to specify a new command or a batch file
o Select the existing command or the batch file from the drop-down list
3. Click OK.
Pre-data capture command
To specify a command/batch file to be executed before data capture
1. In the Command field, type a command or browse to a batch file. The program does not support
interactive commands, i.e. commands that require user input (for example, "pause".)
2. In the Working directory field, specify a path to a directory where the command/batch file will be
executed.
3. In the Arguments field specify the command’s execution arguments, if required.
4. Depending on the result you want to obtain, select the appropriate options as described in the
table below.
5. Click Test command to check if the command is correct.
Check box Selection
Fail the backup task if the
command execution fails
Selected Cleared Selected Cleared
Do not perform the data
capture until the command
execution is complete
Selected Selected Cleared Cleared
Result
Preset
Perform the data
capture only after
the command is
successfully
executed. Fail the
task if the command
execution fails.
Perform the data
capture after the
command is
executed despite
execution failure
or success.
N/A Perform the data
capture
concurrently with
the command and
irrespective of the
command
execution result.