From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mondschein.lichtvoll.de ([194.150.191.11]:60583 "EHLO mail.lichtvoll.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751022AbbDRIPA (ORCPT ); Sat, 18 Apr 2015 04:15:00 -0400 From: Martin Steigerwald To: Christoph Anton Mitterer Cc: linux-btrfs Subject: Re: incremental full file backups to smaller mediums possible? Date: Sat, 18 Apr 2015 10:14:58 +0200 Message-ID: <1489496.v0bc8xWMtg@merkaba> In-Reply-To: <1429311803.8371.58.camel@scientia.net> References: <1428596073.4994.24.camel@scientia.net> <20150409163319.GV13864@carfax.org.uk> <1429311803.8371.58.camel@scientia.net> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart1522585.72MrBAkc8Z"; micalg="pgp-sha1"; protocol="application/pgp-signature" Sender: linux-btrfs-owner@vger.kernel.org List-ID: --nextPart1522585.72MrBAkc8Z Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="us-ascii" Am Samstag, 18. April 2015, 01:03:23 schrieb Christoph Anton Mitterer: > On Thu, 2015-04-09 at 16:33 +0000, Hugo Mills wrote: > > btrfs sub find-new might be more helpful to you here. That will > >=20 > > give you the list of changed files; then just feed that list to you= r > > existing bin-packing algorithm for working out what goes on which > > disks, and you're done. >=20 > hmm that sounds interesting, but > a) it lacks much documentation (how does that with the generations wo= rk? > when is there a new generation? what, if the generation overflows?) I have no idea about when there is a new generation. I think it depends= on=20 the commit intervall. You can see the current generation with: merkaba:~> btrfs subvol show / | grep Generation Generation (Gen): 468143 > b) it seems to only show me new files, but not files that have been m= oved, > or removed, or when properties have changed. It should show renamed or moved files. But yeah, if it does, at least n= ot=20 in a way that shows that a rename or move operation took place. > c) it seems to work only for one subvolume? Its per subvolume, I think. Thats why it is under "btrfs subvolume" Ciao, =2D-=20 Martin 'Helios' Steigerwald - http://www.Lichtvoll.de GPG: 03B0 0D6C 0040 0710 4AFA B82F 991B EAAC A599 84C7 --nextPart1522585.72MrBAkc8Z Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part. Content-Transfer-Encoding: 7Bit -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iEYEABECAAYFAlUyEoIACgkQmRvqrKWZhMfN/wCgsTO32JGaduNk0Kab312XcD1g tLEAoJ/gl5GyOh+0ZjaZNpWOiA5oAKoP =yLne -----END PGP SIGNATURE----- --nextPart1522585.72MrBAkc8Z--