lkml.org 
[lkml]   [2007]   [Jun]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: limits on raid
    david@lang.hm wrote:
    > in my case it takes 2+ days to resync the array before I can do any
    > performance testing with it. for some reason it's only doing the rebuild
    > at ~5M/sec (even though I've increased the min and max rebuild speeds
    > and a dd to the array seems to be ~44M/sec, even during the rebuild)

    With performance like that, it sounds like you're saturating a bus
    somewhere along the line. If you're using scsi, for instance, it's very
    easy for a long chain of drives to overwhelm a channel. You might also
    want to consider some other RAID layouts like 1+0 or 5+0 depending upon
    your space vs. reliability needs.

    --
    Brendan Conoboy / Red Hat, Inc. / blc@redhat.com
    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2007-06-18 19:23    [W:0.027 / U:0.420 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site