From: Roman Mamedov <rm@romanrm.net>
To: Wolfgang Mader <Wolfgang_Mader@brain-frog.de>
Cc: Btrfs BTRFS <linux-btrfs@vger.kernel.org>
Subject: Re: Recursive delete file from all subvolumes (snapshots)
Date: Fri, 15 Jan 2016 14:05:39 +0500 [thread overview]
Message-ID: <20160115140539.3afa66f0@natsu> (raw)
In-Reply-To: <15624885.ucZm0n36hp@discus>
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On Fri, 15 Jan 2016 09:33:14 +0100
Wolfgang Mader <Wolfgang_Mader@brain-frog.de> wrote:
> I have a btrfs raid 10 from which I take hourly snapshots using snapper. Now,
> I wonder, if there is a way to delete a file together with all its occurrences
> in all snapshots.
>
> My use case is, that the file I want to delete is large, and I want to free its
> space on disk. Thus, I have to get rid of its "live" version but also of all
> references to it in snapshots.
E.g. if your file is at /path/to/file.dat, and your snapshot structure is
/snapshots/YYYY-MM-DD@time/, you would simply do:
rm /snapshots/*/path/to/file.dat
In fact this is what I often do with my timed snapshots when deleting some
files and wanting to recover free space immediately, not waiting for all their
snapshots to expire and get deleted by the usual time-based deletion rules.
If your snapshots are read-only it becomes more complex, but still doable.
--
With respect,
Roman
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next prev parent reply other threads:[~2016-01-15 9:05 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-15 8:33 Recursive delete file from all subvolumes (snapshots) Wolfgang Mader
2016-01-15 9:05 ` Roman Mamedov [this message]
2016-01-15 9:11 ` Wolfgang Mader
2016-01-15 11:48 ` Duncan
2016-01-15 13:33 ` Wolfgang Mader
2016-01-15 15:25 ` Duncan
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