Every ZFS filesystem uses system memory, but is this also true for -NOT- mounted filesystems (with the canmount=noauto option set)? Second question: would it make much difference to have 12 or 22 ZFS filesystems? What''s the memory footprint of a ZFS filesystem -- Dick Hoogendijk -- PGP/GnuPG key: 01D2433D + http://nagual.nl/ | SunOS 10u8 10/09 | OpenSolaris 2010.02 b123 + All that''s really worth doing is what we do for others (Lewis Carrol)