Installation and User's Guide

VSSSpecifies that the VSS should be used to provide online image support (VSS isnot supported on Windows XP).NONESpecifies that no snapshot provider should be used. This turns off online imagesupport. This is the defaultExamplesOptions file:snapshotprovideri VSSinclude.image d: snapshotprovideri=vssCommand line:-SNAPSHOTPROVIDERImage=NONERelated informationRefer to “Configuring Open File Support” on page 63 for information aboutinstalling LVSA.SnapshotrootUse the snapshotroot option with the incremental, selective, orarchive commandsin conjunction with a independent software vendor application that provides asnapshot of a logical volume, to associate the data on the local snapshot with thereal file space data that is stored on the Tivoli Storage Manager server.This option should be used with an incremental backup of a NAS file servervolume instead of a simple incremental or incremental with snapshotroot optionwhenever the NAS file server is running ONTAP V7.3 for performance reasons.The snapdiff and snapshotroot options should not be used together.The snapshotroot option can be used to back up network share mounted filesystems. Both the back up specification (source) and the snapshotroot value can bea network share mounted file specification. For example, the snapshotroot optioncan be used to back up a network share file system hosted on a network-attachedstorage (NAS) that supports snapshot.In the following example, c:\snapshots\snapshot.0 is network share mountedfrom a NAS file server and \\florance\c$ represents the snapshot created at theNAS file server.dsmc incr \\florance\C$ -snapshotroot=c:\shapshots\snapshot.0You can also specify a directory with the snapshotroot option when backing upeach fileset as a separate file space.The snapshotroot option does not provide any facilities to take a volume snapshot,only to manage data created by a volume snapshot.For example, consider an application that takes a snapshot of the c: drive andmounts it as the NTFS junction point \\florence\c$\snapshots\snapshot.0. Ifyouback up this data using the following command, a unique file space called\\florence\c$\snapshots\snapshot.0 is created on the server.Chapter 12. Processing options 475