Joe (the Magician), Thanks, for the insight on exactly what snapshots are doing. I was unaware that snapshots were updated by deltas (or, more precisely, only are the deltas) - I thought they were a static view of the volume at 'x' point in time. Guess that's why it only took a few secs to make! Another question: When a backup program grabs files from the snapshot volume, is it subject to open file issues that are normally a problem during backups? -- Christopher Barry Manager of Information Systems InfiniCon Systems http://www.infiniconsys.com -----Original Message----- From: Joe Thornber [mailto:joe@fib011235813.fsnet.co.uk] Sent: Thursday, March 20, 2003 3:31 PM To: linux-lvm@sistina.com Subject: Re: [linux-lvm] LVM snap size weirdness... On Thursday, March 20, 2003, at 08:00 PM, Barry, Christopher wrote: > I have dumped an ls of both the snap lv and the home lv and diffed > them - no differences. > Why/how can df be confused? It's magic ;) Think of the filesystem that df is looking at as a combination of the original volume with some modifications held in the snapshot volume. - Joe _______________________________________________ linux-lvm mailing list linux-lvm@sistina.com http://lists.sistina.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/ _______________________________________________ linux-lvm mailing list linux-lvm@sistina.com http://lists.sistina.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
