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2005 Jun 29 19:54

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Re: [vox-tech] [fwd] backup solutions for 3 people
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Re: [vox-tech] [fwd] backup solutions for 3 people


on Wed, Jun 29, 2005 at 07:19:24PM -0700, Karsten M. Self (kmself@ix.netcom.com) wrote:

> Right.  Tape is a character (not block) device.  a/k/a sequential media.
> You can't get to some point n+1 on the tape without advancing through n
> first.  This is opposed to disk, where the time to reach any given point
> is relatively fixed.   At worst it's seek + spin:  the time for the head
> to seek to the right cylinder, and the time for the disk to spin to the
> right sector.  For most current [S]ATA or SCSI drives, this is on the
> order of microseconds.  For tape, it's a linear relationship to tape

Milliseconds.  Thousandths, not millionths.

> position.


Karsten M. Self <kmself@ix.netcom.com>        http://kmself.home.netcom.com/
 What Part of "Gestalt" don't you understand?
    Imagine how unbearably, how unutterably cold the universe would be if one
    were all alone.
    - Terry Bisson, Meat Beings

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