From: Mike Hommey <mh@glandium.org>
To: "Jérôme Poulin" <jeromepoulin@gmail.com>
Cc: Francis Galiegue <fgaliegue@gmail.com>,
linux-btrfs <linux-btrfs@vger.kernel.org>
Subject: Re: Can you please define "snapshot" and "subvolume"?
Date: Thu, 7 Oct 2010 15:18:23 +0200 [thread overview]
Message-ID: <20101007131823.GB1536@glandium.org> (raw)
In-Reply-To: <AANLkTikJ4Du-NjvvKo3_Nn00EWUekxn7xHJ-zpGZUfio@mail.gmail.com>
On Thu, Oct 07, 2010 at 08:30:31AM -0400, J=E9r=F4me Poulin wrote:
> Just to tell you one of my use case, I do compilations of OpenWRT on =
a
> Btrfs filesystem, when I snapshot, I only snapshot the subvolume wher=
e
> all the sources are instead of the whole root filesystem, and when I
> need a snapshot of the root for backup purposes, only the root withou=
t
> all the snapshot (which are used to compile for different models of
> embedded devices) is snapshotted, which probably reduces the overhead
> (I can't tell for sure) and makes deletion instantaneous, the cleaner
> just wipes behind the subvolume remove command.
BTW, it would be very useful to be able to turn existing directories
into subvolumes.
Mike
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next prev parent reply other threads:[~2010-10-07 13:18 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-07 11:39 Can you please define "snapshot" and "subvolume"? Francis Galiegue
[not found] ` <AANLkTinGvkLSNq3xiOA5R777k54wbjfgDRKjXwJx0_fW@mail.gmail.com>
2010-10-07 12:00 ` Benjamin Griese
2010-10-07 12:30 ` Jérôme Poulin
2010-10-07 13:18 ` Mike Hommey [this message]
2010-10-07 14:00 ` Benjamin Griese
2010-10-07 20:52 ` David Nicol
2010-10-07 21:13 ` Goffredo Baroncelli
2010-10-07 21:14 ` Chester
2010-10-09 8:15 ` Mike Hommey
2010-10-09 13:55 ` Goffredo Baroncelli
2010-10-07 18:08 ` Goffredo Baroncelli
2010-10-07 20:48 ` David Nicol
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