hi IMHO, upgrade to s11 if possible use the COMSTAR based iscsi Sent from my iPad
On Jan 26, 2012, at 23:25, Ivan Rodriguez <ivan...@gmail.com> wrote: > Dear fellows, > > We have a backup server with a zpool size of 20 TB, we transfer > information using zfs snapshots every day (we have around 300 fs on > that pool), > the storage is a dell md3000i connected by iscsi, the pool is > currently version 10, the same storage is connected > to another server with a smaller pool of 3 TB(zpool version 10) this > server is working fine and speed is good between the storage > and the server, however in the server with 20 TB pool performance is > an issue after we restart the server > performance is good but with the time lets say a week the performance > keeps dropping until we have to > bounce the server again (same behavior with new version of solaris in > this case performance drops in 2 days), no errors in logs or storage > or the zpool status -v > > We suspect that the pool has some issues probably there is corruption > somewhere, we tested solaris 10 8/11 with zpool 29, > although we haven't update the pool itself, with the new solaris the > performance is even worst and every time > that we restart the server we get stuff like this: > > SOURCE: zfs-diagnosis, REV: 1.0 > EVENT-ID: 0168621d-3f61-c1fc-bc73-c50efaa836f4 > DESC: All faults associated with an event id have been addressed. > Refer to http://sun.com/msg/FMD-8000-4M for more information. > AUTO-RESPONSE: Some system components offlined because of the > original fault may have been brought back online. > IMPACT: Performance degradation of the system due to the original > fault may have been recovered. > REC-ACTION: Use fmdump -v -u <EVENT-ID> to identify the repaired components. > [ID 377184 daemon.notice] SUNW-MSG-ID: FMD-8000-6U, TYPE: Resolved, > VER: 1, SEVERITY: Minor > > And we need to export and import the pool in order to be able to access it. > > Now my question is do you guys know if we upgrade the pool does this > process fix some issues in the metadata of the pool ? > We've been holding back the upgrade because we know that after the > upgrade there is no way to return to version 10. > > Does anybody has experienced corruption in the pool without a hardware > failure ? > Is there any tools or procedures to find corruption on the pool or > File systems inside the pool ? (besides scrub) > > So far we went through the connections cables, ports and controllers > between the storage and the server everything seems fine, we've > swapped network interfaces, cables, switch ports etc etc. > > > Any ideas would be really appreciate it. > > Cheers > Ivan > _______________________________________________ > 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
