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Thread: IO tuning for multiple parallel DVD readings

  1. #1
    Join Date
    Nov 2005
    Location
    Curitiba
    Beans
    34
    Distro
    Ubuntu 10.04 Lucid Lynx

    Question IO tuning for multiple parallel DVD readings

    Hi all,

    Objective: copy old backups from 600+ CD/DVD media to a hard disk.

    Machine: A desktop with 4 DVD drivers, mainboard has 4 SATA conectors and only one PATA conector.

    My questions are:

    1. What tuning can I do to the kernel on a Ubuntu Lucid Desktop to achieve maximum IO to dd/cp/rsync/whatever those medias to hd?
    2. What's the best scenario regarding HD/DVD drive connections to mainboard regarding IO/throughput?

    The intention is to insert 4 medias at a time and copy them all in parallel to a local hard disk.

    Any thoughts, hints, insights? I confess I am completely lost where to begin, or if this should work out-of-the-box without any tuneup (will try this).

    Thanks and best regards.
    --
    Marcio Merlone
    I do believe in ghosts. They never lie to me.

  2. #2
    Join Date
    Feb 2007
    Beans
    205
    Distro
    Ubuntu 9.04 Jaunty Jackalope

    Lightbulb Re: IO tuning for multiple parallel DVD readings

    Quote Originally Posted by mmerlone View Post
    Hi all,

    Objective: copy old backups from 600+ CD/DVD media to a hard disk.

    Machine: A desktop with 4 DVD drivers, mainboard has 4 SATA conectors and only one PATA conector.

    My questions are:

    1. What tuning can I do to the kernel on a Ubuntu Lucid Desktop to achieve maximum IO to dd/cp/rsync/whatever those medias to hd?
    2. What's the best scenario regarding HD/DVD drive connections to mainboard regarding IO/throughput?

    The intention is to insert 4 medias at a time and copy them all in parallel to a local hard disk.

    Any thoughts, hints, insights? I confess I am completely lost where to begin, or if this should work out-of-the-box without any tuneup (will try this).

    Thanks and best regards.

    for IO tuning start from here:-

    http://www.redhat.com/docs/wp/perfor...ing/index.html

  3. #3
    Join Date
    Feb 2005
    Location
    Melbourne, Australia
    Beans
    13,510
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: IO tuning for multiple parallel DVD readings

    Quote Originally Posted by mmerlone View Post
    ...........
    Any thoughts, hints, insights? I confess I am completely lost where to begin, or if this should work out-of-the-box without any tuneup (will try this).
    The best advice will be to stop imagining problems that may never exist and try it first.

    If you want high disk write performance then that will be controlled mostly by the capabilities of the particular drive and not by any potential tweaking of something already designed to be as efficient as possible.
    Regards, David.
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