From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx1.redhat.com (ext-mx12.extmail.prod.ext.phx2.redhat.com [10.5.110.17]) by int-mx12.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id r2VHFdNW005204 for ; Sun, 31 Mar 2013 13:15:39 -0400 Received: from Ishtar.hs.tlinx.org (ishtar.tlinx.org [173.164.175.65]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id r2VHFb5l031746 for ; Sun, 31 Mar 2013 13:15:38 -0400 Received: from [192.168.4.12] (Athenae [192.168.4.12]) by Ishtar.hs.tlinx.org (8.14.5/8.14.4/SuSE Linux 0.8) with ESMTP id r2VHFYMa032121 for ; Sun, 31 Mar 2013 10:15:36 -0700 Message-ID: <51586F35.2080606@tlinx.org> Date: Sun, 31 Mar 2013 10:15:33 -0700 From: L A Walsh MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [linux-lvm] benefit of lvmetad in simply daily snaps? Reply-To: LVM general discussion and development List-Id: LVM general discussion and development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , List-Id: Content-Type: text/plain; charset="us-ascii" To: LVM general discussion and development I was just noticing that there was an lvmetad available in the sources, but that my distro doesn't build/include it by default. I'm wondering what it's benefits are. Besides my system volumes, all my data & backup volumes are on lvm. Main thing I've been using lvm for is to generate daily snapshots then using rsync to create static snaps/day that I then mount and keep around for about a month. I mount them in a dated directory under the root such that samba users on windows can see 'previous versions' of files that have changed over the past few days- month. It's not designed to be a backup replacement, but more of a desktop convenience. With the pruning I end up with about 15 static snaps of my main samba volume and, of course 1 active snap going, started daily. So I'm not sure I have that much metadata to keep track of (my script reads it in nightly in ms, to reconstruct it's view of things so it know what to expire, where to try recovery from if it got interrupted in the middle of making a snap copy, and whether or not the snaps need mounting after a reboot. So where would a lvmetad fit in or is my case too simple to really benefit? Just sorta wondering why SuSE doesn't include/build it by default... Thanks,