Hi Romuald, On Fri, Apr 18, 2008 at 10:11 AM, Romuald du Song <rdusong@xxxxxxxxx> wrote: > Hi, > > You just need free space in VG for all modifications done by mysql in the > filesystem while the snapshot is in used. Ah thanks, I see. > If mysql is quiet 1Mo might be enough ! > I'll bet that if your database is 15GB size, 2GB should be enough. If my SQL queries more than 98% SELECT of all queries (inserts, updates, deletes are very rare), then several hundreds of megabytes should be enough. Have a nice day! Mihcael