Does Quickbooks support backups using Volume Shadow Copy?
The Volume Shadow Copy will copy/clone/backup the data files, but the QuickBooks application itself does not support the VSS/shadow copy service. Thus, any opened QuickBooks files will be marked in a “crash consistent” state, which means that I/O writes could have not completed and the file could be corrupted. Your best bet for QuickBooks backups is to use the backup scheduler that’s built into QuickBooks, or make sure that everyone closes out of QuickBooks at the end of the day, so you can do backups overnight.