Re: Tape is blank after omnimn resetpoorid (322 Views)
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Valued Contributor
chindi
Posts: 377
Registered: ‎07-24-2008
Message 1 of 5 (370 Views)

Tape is blank after omnimn resetpoorid

Hi ,

 

We have DP 6.11 in our setup.

One tape was poor , which we made good by running omnimn reset_poor_id , now that tape is blank.

We need to restore dta frm taht tape , how do we do it ?

After scanning also status is blank only .

Honored Contributor
danielbraun
Posts: 731
Registered: ‎07-07-2010
Message 2 of 5 (348 Views)

Re: Tape is blank after omnimn resetpoorid

Hi,

 

so maybe that is the reason why the tape initially became poor. Maybe due to polling or RSM the header became overwritten when the DP backup still was acive. So if after a scan the media still is blank, this means the header information is not available and without media header the import becomes impossible. But the behaviour was not initated by DP. Anyway and sorry, it seems you will not be able to restore data from this specific media anymore.

 

Best regards

Daniel

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HP Expert
Bob_Clark
Posts: 1,473
Registered: ‎08-14-2013
Message 3 of 5 (337 Views)

Re: Tape is blank after omnimn resetpoorid

Any kind of IO error will mark the tape as Poor.  Generally speaking, it can be set back to Good using 'omnimm -reset_poor_medium' command

 

However, as Daniel said, some IO errors are more extreme than others. The way that you describe your symptoms lead me to think that the last time this tape was used, you probably got 2 errors

90:190

61:17112

 

If you see these errors, chances are that, while writing to the tape, the drive got a rewind signal, which corrupted the Header file.  This would not be known until the tape rewinds, and checks the Header file, and finds it to be corrupt

 

The most common cause for this is having a service enabled 'Removable Storage Manager' (RSM).  This does not have to be turned on on the immediate Media Agent.  If you are in a SAN, it can be running on any system that has access to the Tape Drive / LIbrary, and that system does not have to be in the Data Protector Cell.  The SAN administrator would have to identify what systems  are zoned to see the tape library

 

I had a guy once that found that, in his case, his laptop was zoned to see the tape library, and was causing these errors

 

Check all systems that are zoned to see the Tape Library, if you find the RSM service running, stop it and disable it from starting automatically

 

I agree with Daniel, nothing is recoverable from this media

Valued Contributor
chindi
Posts: 377
Registered: ‎07-24-2008
Message 4 of 5 (332 Views)

Re: Tape is blank after omnimn resetpoorid

Hi ,

 

We were using that tape from 2 years.

RSM is disabled on our cell manager in win 2003

 

How do we restore data from that tape ??

 

HP Expert
Bob_Clark
Posts: 1,473
Registered: ‎08-14-2013
Message 5 of 5 (322 Views)

Re: Tape is blank after omnimn resetpoorid

If the tape shows as Blank, there is no usable header file on the tape, and nothing can be restored from that tape

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