From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx2.redhat.com (mx2.redhat.com [10.255.15.25]) by int-mx2.corp.redhat.com (8.13.1/8.13.1) with ESMTP id l1KCwLup030909 for ; Tue, 20 Feb 2007 07:58:21 -0500 Received: from lion.drogon.net (lion.drogon.net [195.10.231.26]) by mx2.redhat.com (8.13.1/8.13.1) with ESMTP id l1KCwHHL010212 for ; Tue, 20 Feb 2007 07:58:18 -0500 Received: from lion.drogon.net (localhost [127.0.0.1]) by lion.drogon.net (8.13.8/8.13.8) with ESMTP id l1KCwBIq032394 for ; Tue, 20 Feb 2007 12:58:11 GMT Received: from localhost (gordon@localhost) by lion.drogon.net (8.13.8/8.13.8/Submit) with ESMTP id l1KCwBWW032390 for ; Tue, 20 Feb 2007 12:58:11 GMT Date: Tue, 20 Feb 2007 12:58:11 +0000 (GMT) From: Gordon Henderson Message-ID: MIME-Version: 1.0 Subject: [linux-lvm] LVM & snapshots 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"; format="flowed" Content-Transfer-Encoding: 7bit To: linux-lvm@redhat.com I tried LVM a few years back and "burnt my fingers" as it were - I found it slow and unstable, but times are changing, progress being made, etc. so does anyone have any input on it's current stability and usability? Basically, I'm running out of steam on some backup servers I have - trying to copy several TB of data using cp -al, then rsyncing on top of it (and then copying the copy, etc. to give me 30 days of backups) has been working well for some time, but the data-set is increasing all the time, and the cp -al is currently taking 4-5 hours, so snapshotting via LVM is looking like it's something I think I ought to be looking into again. The current data-set is 5TB, and having 150TB of storage isn't an option right now... Essentially I need to be able to keep 30 cycles (days) of snapshots on a server that is not a live server (ie. it's a huge disk array, in a secure bunker backing up several remote servers every day, and dumping the occasional snapshot to tape for archive. Data comes into the server via a 100Mb line & rsync from the remote servers). So is LVM(2) up to this task these days, or should I really be looking at something else? Cheers, Gordon