Date: Wed, 20 Mar 2019 00:14:39 +1100 From: Michelle Sullivan <michelle@sorbs.net> To: "freebsd-fs@freebsd.org" <freebsd-fs@freebsd.org> Subject: zfs corruption (again) due to interupted resilver and power faults. Message-ID: <fdfbf579-db87-a173-5fc1-1364bf091ca2@sorbs.net>
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So lost my pool again... this time looks more hopeless, but for simpler reasons. Basically a significant power issue occurred whilst in a resilver process which I am lucky no-one was killed - though if I find the idiot there is still time... anyhoo, to the issue at hand... FreeBSD 12 (memstick boot) Can't import the pool 'storage' All devices are now online (one wasn't but that issue has been resolved by byte copying the drive to a new drive and inserting) Its a zraid2 set... only the one drive had failed and was in the middle of the resilver when the power issue occurred. Pool refuses to import (even with -FfX) zdb reports 4 metdata errors and no (zero) data errors... see: http://flashback.sorbs.net/packages/zfs/image4.jpeg 'zdb -bcd' asserts out in space_map_load (123 of 163) see: http://flashback.sorbs.net/packages/zfs/image5.jpeg Thoughts on how I might recover this? (Really need to as was in the middle of blowing away the original (backup) server for a rebuild and new backup.. so I have quite literally no backups, and every photo I have taken are in that zvol on the pool - there should be no reason why it's corrupt as with the exception of the resilver - there was no active writing to the pool.) Yours hopefully, Michelle -- Michelle Sullivan http://www.mhix.org/
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