Re: Rescueing a DLT tarball on a Mac

Wolfgang.Schelongowski_at_gmx.de
Date: 11/02/05

  • Next message: Thor Lancelot Simon: "Re: Rescueing a DLT tarball on a Mac" 
    Date: 2 Nov 2005 17:16:29 +0100

    "Maury Markowitz" <maury_markowitz@hotmail.com> writes:

    >If I understand your comments correctly, the real problem here is the
    >block size issue. Reading your post now did trigger a memory, and I do
    >believe I used tar csf. But staying at the more theoretical side of
    >things, if I did manage to select settings that the drive could not
    >handle, what would happen in this case?

    >From my memory, albeit under Linux:
    1) Errors
    2) very sloooooow transport
    depending on the blocksizes written/read.

    Besides, for DATs you set the DAT tape blocksize via mt setbl or
    whatever the man page of mt says (there are different varieties - GNU
    mt differs from BSD mt). Try blocksizes 0, 512, and 10240. Test which
    one copies the first 10MB from tape fastest, then use that setting.

    >It really is a DAT. The only reason the term "DLT" appeared at any
    >point is that I confused the two TLA's. And it doesn't really make a
    >difference anyway, because the two drives are identical.

    I believe that the behaviour of DATs as to blocking is a bit
    unusual when compared with other tapes. It might differ from that of
    DLTs. 

    -- 
The first entry of Sin into the mind occurs when, out of cowardice or
conformity or vanity, the Real is replaced by a comforting lie.
  -- Integritas, Consonantia, Claritas
  • Next message: Thor Lancelot Simon: "Re: Rescueing a DLT tarball on a Mac"

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