NetBackup "block read is not a NetBackup or BackupExec media header,172"
Hello respected sirs,
I have a virtual environment consisted of a virtual tape library hosting 8 robots and 2 virtual tape drives, a Windows 2008 r2 master server, and 2 medias, both Win Server 2008 r2 x64, and a Centos 6.2 x64 as a client. Master, medias and the client have NetBackup 7.5.
So far so good, but Duplication job, either selected through a SLP either manually on a basicdisk from Catalog ends up with "Error bptm block read is not a NetBackup or BackupExec media hearder , len=1024 , media ID 1018L4, drive index 2 , data is unknown", and later in same job details "read failed, cannot read media header, may not be NetBackup media or is corrupted ( 172)". Same for synthetic backup jobs, when Netbackup starts to read some tapes in order to compile the synthetic backup.
I have already expired and deleted once all the tapes, deleted the robots and drives configuration, restarted VTL, iscsi's, re-configured robots and media, and it helped for a while.
Any help would be mostly appreciated, thank you !