Re: Recursive delete file from all subvolumes (snapshots)

[Wolfgang Mader <Wolfgang_Mader@brain-frog.de>]

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On Friday, January 15, 2016 2:05:39 PM CET Roman Mamedov wrote:
> 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.

Neat idea.

Thx.

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