Diffsnapshotname

The diffsnapshotname option allows you to specify which differential snapshot, on the target filer volume, to use during a snapshot differential backup. This option is only specified if you also specify diffsnapshot=latest.

If this option is not specified, diffsnapshot=latest selects the most recent existing snapshot on the filer volume and uses it as the differential snapshot.

Supported Clients

Linux operating systems This option can be used with supported x86_64 Linux clients.

Windows operating systems This option can be used with supported Windows clients.

Options File

This option can be specified in the client options file or on the command line.

Syntax


>>-DIFFSNAPSHOTName-- --snapshot_name--------------------------><

Parameters

snapshot_name

Specifies the name of an existing snapshot to use as the differential snapshot.

You can also use a pattern with wildcard characters to select a snapshot. Wildcards can be either of the following characters:

*: An asterisk (*) matches any character.
?: A question mark (?) matches a single character.

The most recent snapshot that matches the wildcard pattern is selected as the differential snapshot.

Examples

Options file:

diffsnapshotname volume_base_snap

diffsnapshotname nightly.?

Command line:

dsmc incr \\DRFiler\UserDataVol_Mirror_Share -snapdiff 
  -useexistingbase -basenameshotname="nightly.?" 
  -diffsnapshot=latest -diffsnapshotname="nightly.?"