Summary: use DLT35/70 tape in a DLT40/80 drive

From: Kwan, William (wkwan_at_grow.net)
Date: 04/28/03

  • Next message: Paul Coray: "SUMMARY: V120: Double serial connection freezes one host" 
    Date: Mon, 28 Apr 2003 12:05:12 -0400
To: <sunmanagers@sunmanagers.org>

    Hopefully this is not too early to finalize the question.

    The original problem is trying to use DLT8000 (40/80) tapes that were
    written by a DLT7000(35/70) drive on a DLT8000 drive again. Tapes
    inserted in a DLT8000 drive will be ejected by the hardware. NO OS was
    involved. I wasn't able to send any command to the drive.

    I got suggestions from format, initialize to dd the tape. Mike Salehi
    suggested that a tape used in the lower density drives may need to be
    degaussed.

    On this HP page
    (http://h18000.www1.hp.com/products/quickspecs/11403_na/11403_na_Changes
    .HTML), it mentioned:

    "NOTE: To write to DLT Type IV data cartridges previously written by a
    DLT 20/40, DLT 35/70, and/or DLT 40/80, each data cartridge must first
    be degaussed before usage with a DLT VS 40/80 or DLT1 tape drive or
    device. For new, unused media, this step is not necessary."

    Since there's no button or anything on the tape drive to set the
    density, I think I need to find a big magnet.

    > -----Original Message-----
    > From: Kwan, William [mailto:wkwan@grow.net]
    > Sent: Monday, April 28, 2003 10:30 AM
    > To: sunmanagers@sunmanagers.org
    > Subject: use DLT35/70 tape in a DLT40/80 drive
    >
    >
    > Running out of tapes, want to try used DLT tapes in a DLT40/80 drive.
    > These tapes were used in a DLT35/70 drive before (they are 40/80
    > tapes). It doesn't work... anyway to break this?
    >
    > ____________________________
    > William Kwan
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    > sunmanagers mailing list
    > sunmanagers@sunmanagers.org
    > http://www.sunmanagers.org/mailman/listinfo/sunmanagers
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