Thanks Tuomas. I'll run the scrub. It's an aging X4500. -J
On Thu, Sep 30, 2010 at 3:25 AM, Tuomas Leikola <tuomas.leik...@gmail.com>wrote: > On Thu, Sep 30, 2010 at 9:08 AM, Jason J. W. Williams < > jasonjwwilli...@gmail.com> wrote: > >> >> Should I be worried about these checksum errors? >> >> > Maybe. Your disks, cabling or disk controller is probably having some issue > which caused them. or maybe sunspots are to blame. > > Run a scrub often and monitor if there are more, and if there is a pattern > to them. Have backups. Maybe switch hardware one by one to see if that > helps. > > >> What caused the small resilverings on c8t5d0 and c11t5d0 which were not >> replaced or otherwise touched? >> >> > It was the checksum errors. ZFS automatically read the good data on other > mirrors, and replaced the broken blocks with correct data. If you run zpool > clear and zpool scrub you will notice these checksum errors have vanished. > If they were caused by botched writes, no new errors should probably appear. > If they are botched reads, you can see some new ones appearing :( > > So, not critical yet but something to keep an eye on. > > Tuomas >
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