Jonathan,

On 01/09/2010, at 19:07 , Jonathan Natividad wrote:

> A colleage accidentally labelled a physically write protected tape which I 
> have 
> loaded for a restore.  The tape now shows 0% utilised.  Scanning the tape 
> will 
> come up with an "fn 2 rn 0 read error More data is available" error.
> 
> I tried scanner -f 3 it didn't work, neither did -f 4 -f 5 etc.
> 
> Correct me if I'm wrong but it doesn't appear like a block size issue as the 
> tape block size is 128k and the device maximum block size exceeds that.  I 
> would 
> like to believe that the data is still in there because the tape is 
> physically 
> write protected.

If it was physically write protected at the time it was relabelled, then 
NetWorker would have deleted the old media database entry and be expecting 
something different on the tape.

Likely you could delete the current volume label from the media database (i.e., 
nsrmm -d volumeName), then run a scanner command against the volume to 
repopulate the original media database entries for it. That's what I've done in 
the past when customers have had this issue.

Cheers,

Preston.

--
Preston de Guise

http://nsrd.info/blog                           NetWorker Blog
http://www.enterprisesystemsbackup.com          "Enterprise Systems Backup and 
Recovery: A corporate insurance policy"





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