http://blogs.technet.com/filecab/archive/2008/05/21/what-is-the-difference-between-vss-full-backup-and-vss-copy-backup-in-windows-server-2008.aspxWe sometimes get people asking about the difference between VSS Full Backup and VSS Copy Backup in Windows Server 2008. Basically, for certain applications (such as Exchange), VSS Copy Backup preserves logs and VSS Full Backup truncate logs. Yes, we know,en-USCommunityServer 2.1 SP1 (Build: 61025.2)