Jaime D O Lima Jr wrote:
>
> Hi all,
>
> I suppose that that ftape only permits the application task to write at
> start of the tape and at the end (EOM) the tape (i.e. after all
> preexistent volumes).
>
> Sometimes, when appending a new volume to tape, I have a fail in
> operation or while verifying this new volume (I have a Ditto Max
> Parallel :( ...). When this thing happens I can't delete the recent
> appended volume without arm the previous ones - it seems that the tape
> device driver doesn't let me do that. I think that should be possible to
>
> write to a tape just after any volume it already contains (blowing up
> all the files after it, of course, but preserving the ones before it).
>
> If somebody knows how to do that in the current driver, please let me
> know. I suppose that what I am trying to do is not technically
> impossible to tape machine to perform. Actually, I think I could do
> that using the "Iomega Works" software (Using another tape/format, of
> course).
Jaime,
The problem that you are seeing is related to the fact that a QIC-117
based tape MUST update the header segments upon completion of a write
operation or the new data does not exist on the tape.
As for your assertion that you can only write at the beginning of tape
or at the end of data, this is correct. This is true for ALL tape
devices under Linux (and other UNIX OS's as well).
--
Tim Jones [EMAIL PROTECTED]
Vice President Visit our tape backup web pages:
Enhanced Software Technologies, Inc. http://www.estinc.com/
