Re: Restore from DLT-IV Tapes in an SDLT Drive

From: Silvo Bozovicar (silvo.bozovicar_at_snt.si)
Date: 12/24/04 

Date: Fri, 24 Dec 2004 09:42:41 +0100

BillC wrote:
>
> greetings
>
> am exasperated by my SDLT Tape drive's behavior. i have an AS4100
> with a TZ887 writing backups to DLT-IV Tapes; it takes FOREVER.
>
> (FOREVER = 22 1/4 hours in each 24 hour period).
>
> it has become almost impossible to restore files without aborting a
> current
> backup.
>
> i also have an ES45 with an SDLT Drive. it is wicked fast, and the
> tape
> drive is available about 16 hours per day. so, i use the SDLT
> drive to
> read files from the DLT-IV Tapes. this used to work nicely, and the
> file-restore times *were* pleasantly short. lately however i cannot
> seem
> to 'BACKUP/select=...' from these DLT-IV tapes in acceptable

 I hope you have read manuals from SDLT tape and i hope that you know
that
reading heads are much stronger than those in DLT8000. That means you
can
read DLT-IV tapes in SDLT only once (reliable), second time data and
labels
can/will get corupted. Also those DLT-IV will become useless as you
will not be
able read or write them anywhere else.

Only solution for reusing those migrated tapes is to take them into the
special
machine with strong magnetic field in it to erase entire tape, those
erasers
are quite expensive (around $ 5000).

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