I don't have any errors from fmdump or syslog. The machine is SUN FIRE X4275 I don't use mpt or lsi drivers. It could be a bug in a driver since I see this on 2 the same machines.
On Fri, Sep 10, 2010 at 9:51 PM, Carson Gaspar <car...@taltos.org> wrote: > On 9/10/10 4:16 PM, Piotr Jasiukajtis wrote: >> >> Ok, now I know it's not related to the I/O performance, but to the ZFS >> itself. >> >> At some time all 3 pools were locked in that way: >> >> extended device statistics ---- errors >> --- >> r/s w/s kr/s kw/s wait actv wsvc_t asvc_t %w %b s/w h/w >> trn tot device >> 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0 0 1 >> 0 1 c8t0d0 >> 0.0 0.0 0.0 0.0 0.0 8.0 0.0 0.0 0 100 0 0 >> 0 0 c7t0d0 > > Nope, most likely your disks or disk controller/driver. Note that you have 8 > outstanding I/O requests that aren't being serviced. Look in your syslog, > and I bet you'll see I/O timeout errors. I have seen this before with > Western Digital disks attached to an LSI controller using the mpt driver. > There was a lot of work diagnosing it, see the list archives - an > /etc/system change fixed it for me (set xpv_psm:xen_support_msi = -1), but I > was using a xen kernel. Note that replacing my disks with larger Seagate > ones made the problem go away as well. > _______________________________________________ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss > -- Piotr Jasiukajtis | estibi | SCA OS0072 http://estseg.blogspot.com _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
