On Tue, 2 Dec 2008, Carsten Aulbert wrote: > > Hmm, since I only started with Solaris this year, is there a way to > identify a "slow" disk? In principle these should all be identical > Hitachi Deathstar^WDeskstar drives and should only have the standard > deviation during production.
Look at the output of 'iostat -xn 30' when the system is under load. Possibly ignore the initial output entry since that is an aggregate since the dawn of time. You will need to know which disks are in each vdev. Check to see if the asvc_t value for one of the disks is much more than the others in the same vdev. If a disk is acting as the bottleneck then it is likely that its asvc_t value is far greater than the others. In order to get zfs's view of I/O at use zpool iostat -v poolname 30 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
