slow HD to HD partition copies
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Thread: slow HD to HD partition copies

  1. #1
    Join Date
    Oct 2005

    slow HD to HD partition copies


    I'm scratching my head over the following problem in doing
    total HD to HD copies via Copy Commander 9.

    My source HD is a WD120GB and my destination HD is a WD80GB.

    I have 512MB RAM, an AMD2200+ CPU, both drives are 7200 RPM.

    While in Windows Millennium, I can copy 1GB of data from one HD
    partition to another HD partition in 5 minutes!

    Using Copy Commander 9 from diskette, It takes a combined 1 hour
    to simply copy 2GB of data including time to scan a target space
    on the 80GB.

    ????? This is not normal and I cannot figure out why this slow
    copy speed presents itself.

    My motherboard is a K7VTA Pro V1.0 with Award BIOS. PIO and UDMA
    settings are all on AUTO.

    Please advise me as to how to debug this problem.


  2. #2
    Join Date
    Dec 1998
    Adelaide, South Australia
    Disk caching -- Windows does it by default, but DOS needs a utility running. Run "smartdrv" from your boot floppy and it should speed data transfers up immensely.
    Safe computing is a habit, not a toolkit.

  3. #3
    Join Date
    May 1999
    There are numerous reasons why disk transfer speed is slow when running from in a real mode "DOS like" environment. In Windows you have disk caching but you also have 32 bit drivers and UDMA drivers. I'm not familar with "Copy Commander 9" but it's possible that it has none of the above.

    One other tip that might help is to check through all your bios setup screens and see if you find an option like "Bus mastering IDE" and set to "enabled". Now you'd think that such a setting would be enabled by default but often it's not. The reason for this is that it's not required in Windows which loads it's own bus-mastering UDMA IDE drivers. But if enabled this setting can often speed up disk transfers from environemnts that dont have there own UDMA drivers.
    Last edited by uart; October 31st, 2005 at 11:19 AM.

  4. #4
    Join Date
    Oct 2005

    snail-paced HD to HD partition copies

    Greetings responders to my post

    I'll look into both plausible conditions and report back
    whatever the outcome of tackling my problem to a solution.

    Thank you,


  5. #5
    Join Date
    Oct 2005

    No luck on speedier data transfer rates

    Hello responders to my original post,

    I've not had any success in getting Copy Commander 9 to
    speed up HD to HD partition data transfer rates.

    I backed up a 30GB FAT32 partition from a WD120GB SE HD to
    a WD80GB SE HD. Took 13 hours! Data copy was validated
    via scandisk so there is data integrity security in using that product.
    But, the disappointment is that CC9 apparently lacks the necessary
    drivers as for example Millennium uses to make rocket data transfers.

    Tried suggestions offered by members. Thanks for the efforts


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