From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from magic.merlins.org ([209.81.13.136]:49190 "EHLO mail1.merlins.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752061AbbEJQuJ (ORCPT ); Sun, 10 May 2015 12:50:09 -0400 Received: from svh-gw.merlins.org ([173.11.111.145]:33629 helo=legolas.merlins.org) by mail1.merlins.org with esmtps (Cipher TLS1.2:DHE_RSA_AES_128_CBC_SHA1:128) (Exim 4.80 #2) id 1YrUQD-0008F1-AS for ; Sun, 10 May 2015 09:49:48 -0700 Received: from merlin by legolas.merlins.org with local (Exim 4.80) (envelope-from ) id 1YrUQC-0003xo-BU for linux-btrfs@vger.kernel.org; Sun, 10 May 2015 09:49:44 -0700 Date: Sun, 10 May 2015 09:49:44 -0700 From: Marc MERLIN To: "linux-btrfs@vger.kernel.org" Message-ID: <20150510164944.GI16535@merlins.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Subject: Are there plans for full btrfs filesystem backups? Sender: linux-btrfs-owner@vger.kernel.org List-ID: 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