Date: Thu, 11 Aug 2011 12:03:14 -0400 From: Martin Cracauer <cracauer@cons.org> To: freebsd-fs@freebsd.org Subject: ZFS zpool mirror drive replacement confusion Message-ID: <20110811160314.GA25076@cons.org>
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My computer keeps doing what I say, not what I want :-)
This zpool with a 2-drive mirror had a dead drive (ad10) which I
removed. After I tried to put ad2 as a replacement drive I ended up
with the drive not in the mirror, it seems to have extended the zpool
(it's size?).
NAME STATE READ WRITE CKSUM
cbackup3 DEGRADED 0 0 0
mirror DEGRADED 0 0 0
ad6 ONLINE 0 0 0
ad10 REMOVED 0 0 0
ad2 ONLINE 0 0 11
Unfortunately I didn't keep note of the specific command that I used.
Two questions:
- Does somebody know offhand what I did and what I should have done
instead to get ad2 into the mirror?
- Would there have been a way to remove ad2 from this set? It didn't
let me, saying it can only remove drives from mirror or raid sets.
I think it should have been possible before I mounted the filesystem
in there read-write for the first time after the drive add. This
seems like an easy mistake to make.
The array doesn't contain important data, just trying to sort out
things for the future.
Martin
--
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Martin Cracauer <cracauer@cons.org> http://www.cons.org/cracauer/
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