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DDS3 and DDS4 tapes in a DDS2 tape drive?? - Sun Solaris

Are DDS3 and DDS4 tapes compatible in a DDS2 extertal Sun tape drive? I have one and it just spits out the DDS3 and DDS4 tapes 30 seconds after I insert them. Thanks for your help!!...

  1. #1

    Default DDS3 and DDS4 tapes in a DDS2 tape drive??

    Are DDS3 and DDS4 tapes compatible in a DDS2 extertal Sun tape drive? I
    have one and it just spits
    out the DDS3 and DDS4 tapes 30 seconds after I insert them.

    Thanks for your help!!


    Kurt Guest

  2. #2

    Default Re: DDS3 and DDS4 tapes in a DDS2 tape drive??

    Kurt wrote:
    >
    > Are DDS3 and DDS4 tapes compatible in a DDS2 extertal Sun tape drive? I
    > have one and it just spits
    > out the DDS3 and DDS4 tapes 30 seconds after I insert them.
    >
    > Thanks for your help!!
    As someone has said, the answer is no. If you want to swap some of
    your DDS-4 tape for some of my DDS-2 ones, I'd be quite happy!

    I'll elaborate a bit. Essentially a tape drive can read/write lower
    capacity tapes, but not higher capacity ones. A DDS-4 tape drive can
    and read and write DDS-4, DDS-3 and DDS-2 tapes. A DDS-3 can read and
    write DDS-2 and DDS-3 tapes. A DDS-2 tape drive can read and write
    DDS-2 tapes.

    Note I've not mentioned DDS-1 tapes above. I don't think the latest
    DDS-4 tape drives can write to the very old DDS-1 tapes and possibly
    not even read from them. I assume DDS-2 drives would have no such
    problem. I'm not entirely sure on the DDS-1 status, as its so old I've
    never even bothered considering it.

    It is recommended that you only use the tapes of the drives capacity.
    i.e. while a DDS-4 drive will read/write DDS-3 and DDS-2 tapes, its
    not recommended you do this on a regular basis.

    There's a doent discussing this in more detail on HP's web site,
    and probably Seagate's too.

    --
    Dr. David Kirkby,
    Senior Research Fellow,
    Department of Medical Physics,
    University College London,
    11-20 Capper St, London, WC1E 6JA.
    Tel: 020 7679 6408 Fax: 020 7679 6269
    Internal telephone: ext 46408
    e-mail [email]davekmedphys.ucl.ac.uk[/email]
    Dr. David Kirkby Guest

  3. #3

    Default Re: DDS3 and DDS4 tapes in a DDS2 tape drive??

    In article <3F27BE4F.C5A32E04ntlworld.com>,
    "Dr. David Kirkby" <drkirkbyntlworld.com> writes:
    >
    > Note I've not mentioned DDS-1 tapes above. I don't think the latest
    > DDS-4 tape drives can write to the very old DDS-1 tapes and possibly
    > not even read from them. I assume DDS-2 drives would have no such
    > problem. I'm not entirely sure on the DDS-1 status, as its so old I've
    > never even bothered considering it.
    DDS-4 drive can't write DDS-1 tapes.
    DDS-4 can read 90m DDS-1 tapes, but not 60m DDS-1 tapes.
    At least, this was true for HP's drives. Other makes may be different.
    (Of course, DDS-1 tapes were just called DDS at the time.)

    --
    Andrew Gabriel
    Andrew Gabriel Guest

  4. #4

    Default Re: DDS3 and DDS4 tapes in a DDS2 tape drive??

    In message <bg8945$ht3$1zcars0v6.ca.nortel.com>, Kurt
    <bunnyman2000imagin.net> writes
    >Are DDS3 and DDS4 tapes compatible in a DDS2 extertal Sun tape drive? I
    >have one and it just spits
    >out the DDS3 and DDS4 tapes 30 seconds after I insert them.
    >
    >Thanks for your help!!
    >
    >
    Well, you're almost lucky that it does spit them out!

    I had an 'interesting' problem once when a customer wrote on a DDS3 tape
    in a DDS2 drive. I couldn't get it to read in my DDS3 drive until I had
    covered over the relevant identification holes on the cartridge to make
    my drive believe that it was a DDS2 cartridge!
    --
    Andrew Lennard [email]andykontron.demon.co.uk[/email]
    Andy Lennard Guest

  5. #5

    Default Re: DDS3 and DDS4 tapes in a DDS2 tape drive??

    Quote Originally Posted by Kurt View Post
    Are DDS3 and DDS4 tapes compatible in a DDS2 extertal Sun tape drive? I
    have one and it just spits
    out the DDS3 and DDS4 tapes 30 seconds after I insert them.

    Thanks for your help!!
    The DDS Generation line is only backwards compatible. Meaning if you had a DDS-2 tape drive, it could write and read to DDS-2 and DDS-1, but not DDS-3 or greater (unless of course you had a DDS-3 or better tape drive)
    Unregistered Guest

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