Hello Scott, >> I'd like to be able to run one of TWO independently installed server >> instances on the same single data cluster. Actually, there are even >> 2 separate OS instances for that, though they are mostly identical and >> they share the same harddisk. Server instances are also identical >> versions. > Sorry can't do that. The way pgsql works it needs to be a single > postmaster on a single server. Probably I was not clear enough - I meant that only _one_ postmaster is run at a time, of course. What is wanted is that the user be able to choose _which_ one at boot time (So, 2 identical posmasters, 1 cluster, 1 postmaster always up, 1 postmaster always down). Thank you, Nikolai ZHUBR -- Sent via pgsql-admin mailing list (pgsql-admin@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-admin