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From: Marc MERLIN <marc@merlins.org>
To: "linux-btrfs@vger.kernel.org" <linux-btrfs@vger.kernel.org>
Subject: Are there plans for full btrfs filesystem backups?
Date: Sun, 10 May 2015 09:49:44 -0700	[thread overview]
Message-ID: <20150510164944.GI16535@merlins.org> (raw)

I use send/receive to backup some subvolumes, but there is no good way
to back up all of my subvolumes in one swoop.
Backing up with tar/cp/rsync is of course no good since it loses all the
btrfs attributes including COW deduped blocks.

For one, my recent btrfs filesystem crash reminded me that docker
creates a boatload of subvolumes which my backups didn't cacch, so now
it's all gone.

Are there any plans for a full filesystem send/receive, not just a
subvolume send/receive?

Note that this is the same problem when you are migtrating to new drives
or bcache, and you can't play tricks with adding a virtual drive of 8TB
just to mirror to it and remove the original mirror later.

Thanks,
Marc
-- 
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems ....
                                      .... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/                         | PGP 1024R/763BE901

             reply	other threads:[~2015-05-10 16:50 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-05-10 16:49 Marc MERLIN [this message]
2015-05-11  3:55 ` Are there plans for full btrfs filesystem backups? Duncan
2015-05-11  4:57   ` Chris Murphy
2015-05-12  5:36     ` Duncan
  -- strict thread matches above, loose matches on Subject: below --
2015-05-10 22:17 csirac2

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