Date: Tue, 17 Nov 2009 06:10:46 +0200 From: Nikolay Denev <ndenev@gmail.com> To: freebsd-fs@freebsd.org Subject: ZFS resilver/replace changed vdev names from da(4) to gptid Message-ID: <982FC0F3-0071-41E7-94A5-A49720B1771B@gmail.com>
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Hello, Something strange happened while resilvering a 6 disk raidz1 array with = one failed drive. I've initially put the new disk and issued : zfs replace tank da1p2 But the resilver process found unrecoverable errors in one snapshot and = after resilvering for 7 hours it still showed da1p2/old and the new da1p2 and shortly after this after = issuing another zfs scrub command the machine livelocked. The strange thing happened after I rebooted the machine and restarted = the zfs scrub. This time ZFS picked up the new device not by da(4) name, but by gptid, = this pass also failed and I was forced to destroy a snapshot containing the unrecoverable errors and restart the = scrub again. This time it completed normally and the pool is now ONLINE but even more = strangely this time it replaced another vdev with it's gptid, and this is not the vdev that was being resilvered... = and now the pool looks like this : pool: tank state: ONLINE scrub: resilver completed after 7h18m with 0 errors on Tue Nov 17 = 00:16:20 2009 config: NAME STATE READ = WRITE CKSUM tank ONLINE 0 = 0 0 raidz1 ONLINE 0 = 0 0 da0p2 ONLINE 0 = 0 0 4.55G resilvered gptid/b8baba94-d068-11de-a6d5-003048c1b5fa ONLINE 0 = 0 0 63.2G resilvered gptid/c00174b1-d068-11de-a6d5-003048c1b5fa ONLINE 0 = 0 0 4.55G resilvered da3p2 ONLINE 0 = 0 0 4.21G resilvered da4p2 ONLINE 0 = 0 0 4.55G resilvered da5p2 ONLINE 0 = 0 0 4.21G resilvered errors: No known data errors P.S.: This also makes me wonder how I can safely make all of the other = vdevs use gptid, as I plan to replace the SATA controller with a new one that probably is going to export the = devices as ad(4) or ada(4). -- Regards, Nikolay Denev
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