On Thu, Apr 07, 2005 at 02:29:20PM +0200, Tom Parker wrote: > 1) Is there any limit on the size of a mapping table? Can hand over a table > with 30,000+ entries and expect DM to still work? Yes, but you might hit hard-coded libdevmapper limit. > 2) Is there any significant performance degredation with large tables? Should not be. > 3) As I understand it, DM stores the mapping tables itself somehow, in a > way that is persistant across reboots. No, that's one thing lvm2, multipath-tools etc. are for. Alasdair -- agk@xxxxxxxxxx