MDB restore doesn't work.

Hello guys,

My configuration is the following: Win 2008R2 with Exchange 2010 SP1, NWS 7.6.2.4 Build 669 and NMM 2.3.0.81

I have 2 mailbox server with DAG and 2 CAS/HUB.
The backup works fine, not the restore.
When i want restore MDB in RDB i have this error in NMM monitor:

NMM .. Starting Recovery. This operation may take a long time depending on the size of the data requested.

82296:nsrsnap_vss_recover:NMM .. Operation unit failed with error 'br-module: Tape Restore Failed...'.Possible cause: 1)Unsupported file system or 2)write-protected disc or 3)No space on disc or 4)Drive not found

powershell.Invoke Mount-Database failed.

Cannot invoke this function because the current host does not implement it.

81188:nsrsnap_vss_recover:

**************************************************************NMM .. Failed to mount Database [RDB01].                                    Client will not attempt any further mounts.

Recover completion status

Files failed to be restored for Microsoft Exchange 2010.

Exchange restore completed for MDB01.

**************************************************************

50325:nsrsnap_vss_recover:nsrsnap_vss_recover: Recovery operation succeeded.nsrsnap_vss_recover complete time: 21.11.2011 13:58:06

Recover program exited with status: 0

Restore destination has been reset for Mail Box Database MDB01

The options specified in the Recover Options Dialog have been reset back to their safe default values.

The unit where i restore the MDB is in NTFS format, permissions are good, no protected, not full and healthy.

I wait on support since 1 week...
If you can help me.
Thanks a lot

David.