VSS restrictions
- VSS is not supported on iSCSI LUs formatted as dynamic disks, only basic disks are supported.
- VSS initiated snapshots may not be backward compatible between major firmware releases. For example, snapshots taken on a NAS server running firmware version SU 6.x cannot be accessed by the VSS host if the NAS server is returned to firmware version SU 5.x. For information on backward compatibility of VSS initiated snapshots between releases, contact your technical support representative.