On 4/23/07, Robert Milkowski <[EMAIL PROTECTED]> wrote:
Relatively low traffic to the pool but sync takes too long to complete and other operations are also not that fast. Disks are on 3510 array. zil_disable=1. bash-3.00# ptime sync real 1:21.569 user 0.001 sys 0.027
Hey, that is *quick*! On Friday afternoon I typed sync mid-afternoon. Nothing had happened a couple of hours later when I went home. It looked as though it had finished by 11pm, when I checked in from home. This was on a thumper running S10U3. As far as I could tell, all writes to the pool stopped completely. There were applications trying to write, but they had just stopped (and picked up later in the evening). A fairly consistent few hundred K per second of reads; no writes; and pretty low system load. It did recover, but write latencies of a few hours is rather undesirable. What on earth was it doing? -- -Peter Tribble http://www.petertribble.co.uk/ - http://ptribble.blogspot.com/ _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
