We're just starting to make use of the Snap Manager (6.0) software for Exchange. (Exch 2007 stnd on server 2003 x64 stnd)
I believe I'm right in thinking that Snap Drive (installed 6.3.1R1) now works with VMFS volumes for VMWare, vSphere 5, using iSCSI and VSC 2.1.1 (hopefully I'm right that VSC has replaced SMVI).
I have got Snap drive to recognise the drives, and when I run SMExch I see my server listed, and everything looks good, however, each time I run the backup, whether backing up a single storage group, or the entire server.
The error we get is "VSS_E_VOLUME_NOT_SUPPORTED_BY_PROVIDER".
As I look through the backup log I see the following lines listed