On Thu, 7 Aug 2008, Andrey Dmitriev wrote: > We had a situation where write speeds to a ZFS consisting of 2 7TB > RAID5 LUNs came to a crawl. We have spent a good 100 men hours > trying to troubleshoot the issue eliminating HW issues. In the end, > when we whacked about 2TB out of 14, performance went back to normal > (300megs+ vs 3 megs when it was poor). I would like some > understanding as to why this is the case with ZFS, as well as for > what threshold to look out for.
Are you sure that you don't have some slow disk drives in your RAID5 LUN? Its seems like your two RAID5 LUNs are performing quite differently. Bob ====================================== Bob Friesenhahn [EMAIL PROTECTED], http://www.simplesystems.org/users/bfriesen/ GraphicsMagick Maintainer, http://www.GraphicsMagick.org/ _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
