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: [email protected] on behalf of Eric D.
> > Mudama
> > Sent: Wed 5/4/2011 12:55 PM
> > To: Adam Serediuk
> > Cc: [email protected]
> > 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
> > [email protected]
> >
> > _______________________________________________
> > zfs-discuss mailing list
> > [email protected]
> > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
> >
> >
> >
> >
>
>
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