From: Hubert Kario <hka@qbs.com.pl>
To: dave@jikos.cz
Cc: linux-btrfs@vger.kernel.org
Subject: Re: [PATCH v2 1/5] btrfs: add command to zero out superblock
Date: Wed, 09 May 2012 19:23:47 +0200 [thread overview]
Message-ID: <5640951.VQCHRfAj9R@k85hala03> (raw)
In-Reply-To: <20120509171807.GO19331@twin.jikos.cz>
On Wednesday 09 of May 2012 19:18:07 David Sterba wrote:
> On Thu, May 03, 2012 at 03:11:45PM +0200, Hubert Kario wrote:
> > nice, didn't know about this. Such functionality would be nice to h=
ave.
> > But then I don't think that a "recreate the array if the parameters=
are
> > the
> > same" is actually a good idea, lots of space for error. A pair of
> > functions:
> >=20
> > btrfs dev zero-superblock
> > btrfs dev restore-superblock
>=20
> As a user, I'm not sure what can I expect from the restore command. F=
rom
> where does it restore? Eg. a file?
>=20
> As a tester I have use for a temporary clearing of a superblock on a
> device, then mount it with -o degraded, work work, and then undo
> clearing. So, my idea is like
>=20
> btrfs device zero-superblock --undo
>=20
> with the obvious sanity checks. A regular user would never need to ca=
ll
> this.
Yes, that's a better idea.
--=20
Hubert Kario
QBS - Quality Business Software
02-656 Warszawa, ul. Ksawer=F3w 30/85
tel. +48 (22) 646-61-51, 646-74-24
www.qbs.com.pl
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prev parent reply other threads:[~2012-05-09 17:23 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-01 12:40 [PATCH v2 1/5] btrfs: add command to zero out superblock Hubert Kario
2012-05-01 12:40 ` [PATCH v2 2/5] handle null pointers in btrfs_prepare_device Hubert Kario
2012-05-01 12:40 ` [PATCH v2 3/5] Remove unused option " Hubert Kario
2012-05-02 14:28 ` [PATCH v2 1/5] btrfs: add command to zero out superblock David Sterba
2012-05-02 14:48 ` David Sterba
2012-05-02 16:42 ` Hubert Kario
2012-05-02 17:36 ` David Sterba
2012-05-03 13:11 ` Hubert Kario
2012-05-09 17:18 ` David Sterba
2012-05-09 17:23 ` Hubert Kario [this message]
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