In regard to: Re: [Networker] recover data from a relabled tape, Byron...:

>>> Some drives will also permit you to fast forward beyond the EOT mark
>>> and then begin reading again, at which point scanner could recover
>>> what
>>> is left.  That is the trick, really: get beyond the EOT mark on the
>>> tape somehow, then scan the rest of the tape with scanner.
>>
>> Do you know of any particular drives that allow the FF past EOT to
>> succeed?  I've never run into any, but I don't use many different tape
>> technologies.
>
>Sorry, not off hand.  If you are on a unix machine you can try it
>youself with the 'mt' commands, though.

I've never seen one of these types of drives either.

The other trick that the insanely-desperate can try is to overwrite the
EOT without putting down a new EOT.  This can be done by writing data to
the drive (using something like tar or dd) so that you "know" you're past
the double EOF marks, and then power the tape drive off so that it doesn't
get a chance to write a new double EOF.  It will certainly destroy part
or all of what's immediately after the original EOT, but it might allow
you to get at the rest of the tape.

It's only for the really desperate, though.

Tim
--
Tim Mooney                              mooney AT dogbert.cc.ndsu.NoDak DOT edu
Information Technology Services         (701) 231-1076 (Voice)
Room 242-J6, IACC Building              (701) 231-8541 (Fax)
North Dakota State University, Fargo, ND 58105-5164

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