NDMP backup to VTL, duplicated to tape with encryption fails to restore direct to NAS filer with restore error Bad header block
Extract from NetVault binary log:
2016/10/13 11:30:29 5230 2 Media NV_SERVEUR (NV_SERVEUR: 1-7.1.1 (Quantum Scalar i40-i80)) Readers' DRIVE 2: NV_SERVEUR has completed its transfer
2016/10/13 11:30:29 5230 2 Data Plugin NV_SERVEUR Data Restore Error
2016/10/13 11:30:28 5230 2 Data Plugin NV_SERVEUR restoration request
2016/10/13 11:30:28 5230 2 Data Plugin NV_SERVEUR Operation interrupted data: Internal unrecoverable error NDMP server
2016/10/13 11:30:28 5230 2 Data NDMP Plugin NV_SERVEUR: ERROR 5: DATA: Operation terminated: EVENT: INTERNAL ERROR (for vol_nas_ohm)
2016/10/13 11:30:28 5230 2 Data NDMP Plugin NV_SERVEUR: ERROR 2: RESTORE: Error: Bad header block
2016/10/13 11:30:28 5230 2 Data NV_SERVEUR Plugin Data Transfer by a connection 'TCP'
2016/10/13 11:30:27
Encryption plugin at this time is not supported with the NDMP plugin because the majority of sites backup direct to tape. When the tape drive is directly attached to the filer the NDMP back is a point-to-point transfer between and NDMP Data Server and a tape drive. If the tape drive is on the filer then there is a Tape Server running the tape drive and a Data Server is running the data. NetVault does not see ANY of the data in this configuration and so cannot encrypt it - only the filer could encrypt it.
Encryption plugin at this time is not supported with the NDMP plugin
Duplicate the data back to VTL before restoring data to the filer.
Current workarounds are :
Encrypt the files on the filer
use tape drive encryption
backup to VTL first, duplicate with encryption plugin to tape. The Down side with this solution is that to restore encrypted backup we have to duplicate the data back to VTL before the data can restore to filer.
