From owner-freebsd-hardware@FreeBSD.ORG Mon Jun 18 17:29:45 2007 Return-Path: X-Original-To: freebsd-hardware@freebsd.org Delivered-To: freebsd-hardware@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id BB91B16A400 for ; Mon, 18 Jun 2007 17:29:45 +0000 (UTC) (envelope-from turgeon.martin@gmail.com) Received: from wx-out-0506.google.com (wx-out-0506.google.com [66.249.82.228]) by mx1.freebsd.org (Postfix) with ESMTP id 7ACE913C45B for ; Mon, 18 Jun 2007 17:29:45 +0000 (UTC) (envelope-from turgeon.martin@gmail.com) Received: by wx-out-0506.google.com with SMTP id h28so1361718wxd for ; Mon, 18 Jun 2007 10:29:44 -0700 (PDT) DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:user-agent:mime-version:to:subject:content-type:content-transfer-encoding; b=Rsy0MHjCP8jQSCT7ZPUEb/agKlbHLaoClU5j+MdS/zunV3d+KcqKlqIeaq3anDj40tr5QiuvRzvPXHOLBaic23W9JhYI24v0T/p3egwrtyyhw66mP7GAQUn40FHYsXbK9qz0af/vcS8lt+f8vl6Yd3DO2WWOtjCquPWoIVZhiGk= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:user-agent:mime-version:to:subject:content-type:content-transfer-encoding; b=STO3Si5fHnOFT/4GRTtDMckP4q/R87Nyry9GokyvBQmBYhgxx9QWmBov+BKlTYATaZm2Sm4Mkh2I5cFfzCBLR2RkMQYBzpR+jKIrhhzz0PuSFuX3zqGJ0E9BG9KAegWZcK2bsKFYkipH+ocWW6cHKU5k78AnrakJjyMGhqnggaI= Received: by 10.90.27.13 with SMTP id a13mr4033039aga.1182186226500; Mon, 18 Jun 2007 10:03:46 -0700 (PDT) Received: from ?31.33.7.200? ( [74.15.176.82]) by mx.google.com with ESMTP id 33sm1583495wra.2007.06.18.10.03.45 (version=TLSv1/SSLv3 cipher=RC4-MD5); Mon, 18 Jun 2007 10:03:45 -0700 (PDT) Message-ID: <4676BAF0.4030703@gmail.com> Date: Mon, 18 Jun 2007 13:03:44 -0400 From: Martin Turgeon User-Agent: Thunderbird 2.0.0.4 (Windows/20070604) MIME-Version: 1.0 To: freebsd-hackers@freebsd.org, freebsd-hardware@freebsd.org Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Subject: i386 with PAE or AMD64 on PowerEdge with 4G RAM X-BeenThere: freebsd-hardware@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: General discussion of FreeBSD hardware List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 18 Jun 2007 17:29:45 -0000 Good afternoon, I just receive 2 PowerEdge servers (a 1950 and a 860) both with 4G of RAM. I installed FreeBSD 6.2 Release i386 on both of them. Unfortunately, only 3,5G is recognized on the 860 and 3,3G on the 1950. dmesg on 860: real memory = 3757834240 (3583 MB) avail memory = 3678318592 (3507 MB) I am facing a difficult decision. Should I use i386 with PAE enabled in the kernel (I read a lot of warnings using it) or should I go with AMD64? Which branch should I follow? These servers will be front-end/back-end MySQL(with replication) and Apache servers with BIND, Postfix, Dovecot, PF. There is the detailled configuration of the servers: PowerEdge 1950 Xeon 5110 4G RAM PERC 5 Raid controller (mfi) Dual Broadcom 5708 (bce) PowerEdge 860 Xeon 3070 4G RAM LSI Logic Raid controller (mpt) Dual Broadcom 5750 (bge) Thanks a lot for your advice, Martin