Use this dialog box to select the action to be taken in case the snapshot fails to be created during the backup job.
Archiving files or running applications that utilizes file access time have special considerations. Ordinarily the action of backing up a file using the backup agent will cause the file access time to change to the time of the backup. This action of the backup agent may have an undesired effect on the application or archiver agent if you want to archive files based on access times. To workaround this situation, you should use a software snapshot (VSS or Qsnap) to accomplish the backup. If the software snapshot were to fail (i.e. VSS service unavailable or unable to quiesce the volume) you can choose the following subclient options to control what happens.
Open files failure actions
Select the action to be taken in case the software snapshot creation fails during a backup job.
If selected, the backup job will fail and not continue in the case where the software is unable to create the snapshot. Use this option, if you want to perform the backup using only the software snapshot.
If selected, the backup job will fall back to legacy (non snapshot) methods. After backing up the file, the access time will be reset back to its original time before the backup occurred. Use this option, if you are archiving files based on access time. Note that resetting the access time introduces a small amount of additional overhead in the backup (may be slightly slower).
If selected, the backup job will fall back to legacy (non snapshot) methods. After backing up the file, the access time will NOT be reset back to its original time. Use this option, if you are NOT archiving files based on access time.