Sounds like a nasty bug, and not one I've seen in illumos or NexentaStor. What build are you running?
- Garrett On Wed, 2011-05-04 at 15:40 -0700, Adam Serediuk wrote: > Dedup is disabled (confirmed to be.) Doing some digging it looks like > this is a very similar issue > to http://forums.oracle.com/forums/thread.jspa?threadID=2200577&tstart=0. > > > > On May 4, 2011, at 2:26 PM, Garrett D'Amore wrote: > > > My first thought is dedup... perhaps you've got dedup enabled and > > the DDT no longer fits in RAM? That would create a huge performance > > cliff. > > > > -----Original Message----- > > From: zfs-discuss-boun...@opensolaris.org on behalf of Eric D. > > Mudama > > Sent: Wed 5/4/2011 12:55 PM > > To: Adam Serediuk > > Cc: zfs-discuss@opensolaris.org > > Subject: Re: [zfs-discuss] Extremely Slow ZFS Performance > > > > On Wed, May 4 at 12:21, Adam Serediuk wrote: > > >Both iostat and zpool iostat show very little to zero load on the > > devices even while blocking. > > > > > >Any suggestions on avenues of approach for troubleshooting? > > > > is 'iostat -en' error free? > > > > > > -- > > Eric D. Mudama > > edmud...@bounceswoosh.org > > > > _______________________________________________ > > zfs-discuss mailing list > > zfs-discuss@opensolaris.org > > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss > > > > > > > > > > _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss