>I thought I'd noticed that my crashes tended to occur when I was running a >scrub, and saw at least one open bug that was scrub-related that could >cause such a crash. However, I eventually tracked my problem down (as it >got worse) to a bad piece of memory (been nearly a week since I replaced >the memory, and no more problems).
I had a problem and I think that it was a bad motherboard; it too panic'ed during scrub and it even said that "scrub finished" (it went from 50% to finished, immediately). I replaced the system (motherboard, harddisk) and I re-ran scrub; no problem with scrub that time but it took the amount it should have taken. >Which leaves me wondering, how safe is running a scrub? Scrub is one of >the things that made ZFS so attractive to me, and my automatic reaction >when I first hook up the data disks during a recovery is "run a scrub!". If your memory is bad, anything can happen. A scrub can rewrite bad data; but it can be the case that the disk is fine but the memory is bad. Then, if the data is replicated it can be copied and rewritten; it is then possible to write incorrect data (and if they need to recompute the checksum, then oops) Casper _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
