On Tue, 06 Dec 2005 at 01:10 (+0000), Alasdair G Kergon wrote: > On Mon, Dec 05, 2005 at 11:39:11PM +0100, Marc-Jano Knopp wrote: > > So, obviously, > > snapshot volume size = original volume size > > is not sufficient to hold a complete change of the original volume. > > Correct - there's a little bit of metadata required too to > map each piece of data back into the right location. Thought so, just wasn't sure if it gets stored inside the volume or in an extra file or device. I have noticed that lvdisplay <snapshot volume> prints: Allocated to snapshot: 5.00% But as I don't know the inner workings of LVM, I preferred not to take this value for all variants of logical volumes for granted, but instead ask here in this list for exact numbers. [lvscan displays inactive snapshot volume as active] > The 'lvs' attributes should be accurate (and lvdisplay too I think). > lvscan doesn't check properly and needs fixing, thanks. http://www.gotfuturama.com/Multimedia/EpisodeSounds/2ACV14/10.mp3 :-) Best regards Marc-Jano _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
