PDM Timestamp Backup Ok?

We plan to backup our PDM vault every night. IT departmentwould prefer to backup only files that have changed (timestampchanges since last backup), versus the entire vault.

I am concerned about inter-file dependencies. My gut tells me it issafer to create a new copy of the entire vault each backup.

Could the timestamp change approach potentially make the backupsunstable?SolidworksWorkgroup Pdm