Received: from maia.hub.org (unknown [200.46.204.183]) by mail.postgresql.org (Postfix) with ESMTP id ABBD4633BE8 for ; Fri, 26 Feb 2010 07:44:23 -0400 (AST) Received: from mail.postgresql.org ([200.46.204.86]) by maia.hub.org (mx1.hub.org [200.46.204.183]) (amavisd-maia, port 10024) with ESMTP id 20803-04 for ; Fri, 26 Feb 2010 11:44:12 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from relay.pcl-ipout01.plus.net (relay.pcl-ipout01.plus.net [212.159.7.99]) by mail.postgresql.org (Postfix) with ESMTP id 0DB0B632C98 for ; Fri, 26 Feb 2010 07:44:12 -0400 (AST) X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AvsEAFZCh0tUXeby/2dsb2JhbACbEHO7XoR5BA Received: from relay01.plus.net ([84.93.230.242]) by relay.pcl-ipout01.plus.net with ESMTP; 26 Feb 2010 11:44:10 +0000 Received: from [84.51.143.99] (helo=server3.office.archonet.com) by relay01.plus.net with esmtp (Exim) id 1Nkyc5-0002Kq-UU; Fri, 26 Feb 2010 11:44:10 +0000 Received: from [192.168.1.36] (dell36.office.archonet.com [192.168.1.36]) by server3.office.archonet.com (Postfix) with ESMTPA id 83802418048; Fri, 26 Feb 2010 11:44:09 +0000 (GMT) Message-ID: <4B87B409.4090503@archonet.com> Date: Fri, 26 Feb 2010 11:44:09 +0000 From: Richard Huxton User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.9pre) Gecko/20100213 Lightning/1.0b1 Shredder/3.0.2pre MIME-Version: 1.0 To: elias ghanem CC: pgsql-performance@postgresql.org Subject: Re: Multiple data base on same server References: <201002260934.o1Q9Xxka014571@relay-ext.ornis.com> In-Reply-To: <201002260934.o1Q9Xxka014571@relay-ext.ornis.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Plusnet-Relay: a595478033720e140755327653226996 X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=-1.11 tagged_above=-10 required=5 tests=BAYES_05=-1.11 X-Spam-Level: X-Archive-Number: 201002/373 X-Sequence-Number: 37794 On 26/02/10 09:37, elias ghanem wrote: > Hi, > > I'm using postgresql 8.4 > > I need to install multiple postgresql dbs on one server but I have some > questions: > > -Is there any problems (performance wise or other) if I have 10 to 15 DBs on > the same server? Clearly that's going to depend on what they're all doing and how big a server you have. There's no limitation in PostgreSQL that stops you though. > -Each DB needs 10 tablespaces, so if I create 10 different tablespaces for > each DB I will have 100 to 150 table space on the same server. So can this > also cause any problems? Do you have 200-300+ disks to put these tablespaces on? If not, I'm not clear what you are trying to do. Why does each DB need 10 tablespaces? -- Richard Huxton Archonet Ltd