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    SubjectRe: Slow disks.
    On Wed, Dec 22, 2010 at 12:52:08PM -0800, David Rees wrote:
    > On Mon, Dec 20, 2010 at 6:15 AM, Rogier Wolff <R.E.Wolff@bitwizard.nl> wrote:
    > > A friend of mine has a server in a datacenter somewhere. His machine
    > > is not working properly: most of his disks take 10-100 times longer
    > > to process each IO request than normal.
    >
    > I've seen noticeable slowdowns before when the disks were running long
    > SMART tests. It doesn't seem to affect all drives the same. The
    > smartctl data you posted didn't say whether or not the disks were
    > currently running a SMART test, but it's worth double checking.

    No, the machine has trouble 24/7, I seriously doubt that it would be
    running smart tests 24/7.

    Roger.

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