Adaptec 5325301507 Administration Guide - Page 109

Configuring VSS/VDS for iSCSI Disks Configuring VSS/VDS for iSCSI Disks GuardianOS provides VSS and VDS hardware providers to support Microsoft Volume Shadow Copy Services (VSS) and Virtual Disk Service (VDS) for iSCSI disks. Note VSS/VDS operations are supported on iSCSI disks created using GuardianOS v5.2 and later. • The VSS hardware provider provides a mechanism for taking applicationconsistent native snapshots of iSCSI disks without performing full application (or system) shutdown. A snapshot of an iSCSI disk can be automatically created by a backup job run by a VSS-compatible backup application, so that the job backs up the snapshot volume rather than the main production volume. Note VSS iSCSI snapshots are managed by the Windows client and represent the iSCSI disk, not the Snap volume the iSCSI disk resides on. They are not related to GuardianOS snapshots as described in Snapshots. Note VSS iSCSI snapshot rollback is not currently supported. • The VDS hardware provider allows administrators to natively manage SnapServer iSCSI disks, using any VDS compliant management console application. SnapServers support VSS and VDS on the following platforms: Windows Server 2003 Windows Server 2003 R2 Windows Vista Windows Server 2008 VSS X X X VDS X X X For more information on using VSS and VDS, see the Online Help. Note RAID types listed in Storage Manager for SANs when creating an iSCSI disk reflect the types of RAIDs already configured on the SnapServer. Once a RAID type is selected, the SnapServer automatically chooses a SnapServer RAID of the selected type and volume to create the iSCSI disk on. 93