Date: Tue, 22 Sep 2009 14:56:25 +0200 From: Pawel Jakub Dawidek <pjd@FreeBSD.org> To: Kurt Touet <ktouet@gmail.com> Cc: freebsd-fs@freebsd.org Subject: Re: ZFS - Unable to offline drive in raidz1 based pool Message-ID: <20090922125625.GJ6038@garage.freebsd.pl> In-Reply-To: <2a5e326f0909201500w1513aeb5ra644f1c748e22f34@mail.gmail.com> References: <2a5e326f0909201500w1513aeb5ra644f1c748e22f34@mail.gmail.com>
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On Sun, Sep 20, 2009 at 04:00:10PM -0600, Kurt Touet wrote:
> I am using ZFS pool based on a 4-drive raidz1 setup for storage. I
> believe that one of the drives is failing, and I'd like to
> remove/replace it. The drive has been causing some issues (such as
> becoming non-responsive and hanging the system with timeouts), so I'd
> like to offline it, and then run in degraded mode until I can grab a
> new drive (tomorrow). However, when I disconnected the drive (pulled
> the plug, not using a zpool offline command), the following occurred:
>=20
> NAME STATE READ WRITE CKSUM
> storage FAULTED 0 0 1
> raidz1 DEGRADED 0 0 0
> ad14 ONLINE 0 0 0
> ad6 UNAVAIL 0 0 0
> ad12 ONLINE 0 0 0
> ad4 ONLINE 0 0 0
>=20
> Note: That's my recreation of the output... not the actual text.
>=20
> At this point, I was unable to to do anything with the pool... and all
> data was inaccessible. Fortunately, the after sitting pulled for a
> bit, I tried putting the failing drive back into the array, and it
> booted properly. Of course, I still want to replace it, but this is
> what happens when I try to take it offline:
>=20
> monolith# zpool status storage
> pool: storage
> state: ONLINE
> scrub: none requested
> config:
>=20
> NAME STATE READ WRITE CKSUM
> storage ONLINE 0 0 0
> raidz1 ONLINE 0 0 0
> ad14 ONLINE 0 0 0
> ad6 ONLINE 0 0 0
> ad12 ONLINE 0 0 0
> ad4 ONLINE 0 0 0
>=20
> errors: No known data errors
> monolith# zpool offline storage ad6
> cannot offline ad6: no valid replicas
Could you send the output of:
# apply "zdb -l /dev/%1" ad{4,6,12,14}
--=20
Pawel Jakub Dawidek http://www.wheel.pl
pjd@FreeBSD.org http://www.FreeBSD.org
FreeBSD committer Am I Evil? Yes, I Am!
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