FYI, here's the conversations on the subject of LVM and write barriers from last year about this time: http://www.redhat.com/archives/linux-lvm/2009-March/msg00025.html http://archives.postgresql.org/pgsql-general/2009-03/msg00204.php Note that it's also considered bad form to post the same question to multiple lists.
pgsql-admin by date:
Соглашаюсь с условиями обработки персональных данных