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I am using HP Data Protector A.06.11 in my organization, with HP EML E-SeriesEML library, with 4 drives using LTO-4 tapes, and i am having some problems.

Yesterday I put 5 new tapes in the robot and formatted them. At that time, the robot got just those empty 5 tapes with empty space. (all the rest of the tapes are red, or with protection)

Today in the morning after the night (1 backup run at night), and 2 of the new tapes are red (the properties are):

Writes : 2
Overwrites : 1
Errors : 9

I format one of them, and check for each drive if the tape become red, no one of the drives do it.

In the main pool properties, in media condition got:

Valid for : 36 (months)
Maximum overwrites : 250
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Please: what, exactly, is your question? If it's just "why is this happening", could you give any reasons why it might be anything other than "I bought a bad batch of tapes"? –  MadHatter Aug 9 '12 at 9:20
    
Run a cleaning cartridge? –  ewwhite Aug 9 '12 at 10:09
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2 Answers

As someone who has to work with what HP thinks passes as backup software (for another couple weeks at least), I can attest that you don't need to worry about what Data Protector says about your media state. It doesn't know what the hell it's talking about. that particular tape got marked bad as a result of the errors registered on it, independent of whether or not those errors are due to bad media, corrupt source data, a drive that needs cleaning... or even a network hiccup, and anything else that could possibly create a write or read error to or from the tape.

So, really, the media state flag is useless, and will only prevent a poor (red colored) tape from being used for backups. To reset the flag on any tape to good (green), including those that are fair (yellow) or unknown (grey), open a command line and navigate to \bin\ under the Data Protector install directory, and then issue omnimm -reset_poor_medium [medium_id], as in the screenshot below, which shows me setting a fair tape named AK0722L3 back to good.

Poor flag reset

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Well, it depends. I really think you should do a tape drive clean process, with a cleaning tape, before the following.

You can "reset" the poor tape status by issuing the following command:

omnimm -reset_poor_medium [medium_id]

And then rescan the tape (or format it) so you can discard if the mark was a false/positive or indeed the tape is bad.

Best Regards,

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