From owner-freebsd-questions@FreeBSD.ORG Fri Sep 15 01:39:48 2006 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 7176816A415 for ; Fri, 15 Sep 2006 01:39:48 +0000 (UTC) (envelope-from on@cs.ait.ac.th) Received: from mail.cs.ait.ac.th (mail.cs.ait.ac.th [192.41.170.16]) by mx1.FreeBSD.org (Postfix) with ESMTP id BFBAE43D45 for ; Fri, 15 Sep 2006 01:39:47 +0000 (GMT) (envelope-from on@cs.ait.ac.th) Received: from banyan.cs.ait.ac.th (banyan.cs.ait.ac.th [192.41.170.5]) by mail.cs.ait.ac.th (8.13.1/8.12.11) with ESMTP id k8F1djOu090672 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Fri, 15 Sep 2006 08:39:45 +0700 (ICT) Received: (from on@localhost) by banyan.cs.ait.ac.th (8.13.3/8.12.11) id k8F1dgaa029179; Fri, 15 Sep 2006 08:39:42 +0700 (ICT) Date: Fri, 15 Sep 2006 08:39:42 +0700 (ICT) Message-Id: <200609150139.k8F1dgaa029179@banyan.cs.ait.ac.th> From: Olivier Nicole To: wash@wananchi.com In-reply-to: <20060914153224.GK49058@ns2.wananchi.com> (message from Odhiambo Washington on Thu, 14 Sep 2006 18:32:24 +0300) References: <45096C88.4030203@esiee.fr> <20060914153224.GK49058@ns2.wananchi.com> X-Virus-Scanned: on CSIM by amavisd-milter (http://www.amavis.org/) Cc: freebsd-questions@freebsd.org Subject: Re: Upgrading our mail server X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 15 Sep 2006 01:39:48 -0000 > | Our mailhub is actually a HP DL360 with one processor (Xeon 2.8 ghz) > | with 2 Gb RAM and 120 Gb disks, it is 3 years old. > | It runs Postfix + imap + imaps + pop3 + pop3s + squirrelmail + vexira > | antivirus + postgrey > | and some small auxiliary services. > Your server is good enough to handle even 10k users. You just need to > identify what is causing the overload. Adding one processor and 2GB > extra RAM should be enough, I think. Even when the hardware is enough, I enjoy a new machine when it comes to build a mail server: it is such a critical machine (users will not understand that their mailbox could be out of reach for 5 minutes) with enough different components, each having specificities on the config (not the sort you power one and you are done) I don't feel at ease doing too much modif on a production email server. Now at 10K$ you have plenty of money, I believe you could afford 2 machines for hi availability. Olivier