Hello Roger

Get Storagetek to check the firmware level on the new drive and compare it 
to the working drives. We have had this happening because difference in 
firmware. In our case it was because the MIR (The Internal header) format 
had changed. 

Regards
Michael

On Tue, 10 Feb 2004 14:01:03 +0000, Roger-MSC.Smith wrote
> I am running Netbackup 3.4.1 on a Tape SAN with 9840 tape drives 
> which was working fine until a couple of weeks ago when one of the 
> tape drives was replaced.
> 
> Test backup after it was changed worked ok BUT since that time I have
> discovered that although backups work ok if you try and restore from 
> the tape if fails
> 
> 01:08:29 [745] <16> io_read_media_header: block read is not a NetBackup
> media he
> ader, len = 1024, media id Z00340, drive index 3, data is unknown
> 
> We had the engineer swap two drives, the failing drive and one we 
> knew worked ok, however the backup/restore problem stayed at the 
> same location while the swapped failing drive worked ok, so this 
> seems to rule out the hardware.
> 
> Any ideas please
> 
> Roger
> 
> 
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