From owner-freebsd-questions@FreeBSD.ORG Tue Jun 5 00:07:39 2007 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 0C92D16A561 for ; Tue, 5 Jun 2007 00:07:38 +0000 (UTC) (envelope-from drumslayer2@yahoo.com) Received: from web34503.mail.mud.yahoo.com (web34503.mail.mud.yahoo.com [66.163.178.169]) by mx1.freebsd.org (Postfix) with SMTP id 34D5313C447 for ; Tue, 5 Jun 2007 00:07:38 +0000 (UTC) (envelope-from drumslayer2@yahoo.com) Received: (qmail 97765 invoked by uid 60001); 4 Jun 2007 23:40:56 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=X-YMail-OSG:Received:Date:From:Subject:To:MIME-Version:Content-Type:Content-Transfer-Encoding:Message-ID; b=RVkU6DXttxrtusrwcBxhMoSGb4r4T1mvC1glXQ56fb0Cumqa+QYot1YSuAKkHQnqtDJG4pPv7B0wmQFOi2yDB87t1vqw/GJyR/cb2QqsySrgDPULlL885A0ktVfaB/2cwAWIzX1QrjhVOAT14uO9UEjjoYMEnXELwx2hfTkmjyc=; X-YMail-OSG: g_P6jwkVM1kaDL_LZeW3jZYutxUh3BkpjNJeNHAUcQivQxlVeayv1yfRjljM8uWBVcx0AXH20w-- Received: from [67.112.21.27] by web34503.mail.mud.yahoo.com via HTTP; Mon, 04 Jun 2007 16:40:56 PDT Date: Mon, 4 Jun 2007 16:40:56 -0700 (PDT) From: Nicole Harrington To: freebsd-questions@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Message-ID: <661463.95597.qm@web34503.mail.mud.yahoo.com> Subject: How to solve mysterious system lockups? 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: Tue, 05 Jun 2007 00:07:39 -0000 Hello I have several systems that are used as squid caching servers. I have some systems that use SCSI disks and some that use SATA disks. They are identical in everyway except for the sata vs SCSI drives. At random times, the sata based systems seem to be freezing. You can ping them and they respond, but you cannot log in. Nor are any logs processed during that time. I figure it mist be something to do with the disks, but I am not sure how to solve it. There seems to be little rhyme or reason. It does not happen necessarily during busy times. It can happen in the middle of the night. Any pointers in how to track down the cause would be much appreciated. Tyan S2881 Motherboard - 4gigs mem Using 4 SATA (or scsi) drives FreeBSD 6.2-STABLE. Thanks! Nicole