From owner-freebsd-stable@FreeBSD.ORG Fri Sep 11 13:25:21 2009 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 10E84106566B for ; Fri, 11 Sep 2009 13:25:21 +0000 (UTC) (envelope-from artis.caune@gmail.com) Received: from mail-bw0-f206.google.com (mail-bw0-f206.google.com [209.85.218.206]) by mx1.freebsd.org (Postfix) with ESMTP id 95ECA8FC12 for ; Fri, 11 Sep 2009 13:25:20 +0000 (UTC) Received: by bwz2 with SMTP id 2so730977bwz.43 for ; Fri, 11 Sep 2009 06:25:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:cc:content-type; bh=gzymYmwVRs26jyze/8CR6IvuEGsaUvb4R7F4lnyYS+k=; b=VDCSrSATh5JoySq9JwIGft50f7FFmrw6+oq4mWR3pijp6e3Erri+IQBPcKFW5MsyBs tzDIDtVddhXg1j6wx/dT3KH3Io1zLbyp37PXqvNggEJFw61e1iNCGoClpfEBzVZVgqsu DGeNFP9mnPF5mSFruKeuRLMP2Mqk/z2d+wvtE= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=rU9rCOj8sgfwz4iaYmadbX2+LJYwksqbR4JkIiLJah90e+kX/acNlZ01vsNhpuOEIu touq/l+tQ8rAUEaq994bpFC4iznLucUXK3Zfr8Qut0drxMonyp0HZeDOpX5H8HRlNDe7 j8LliJiSMO6l/R8xBgwLFamrbESUn6XTIs250= MIME-Version: 1.0 Received: by 10.204.154.154 with SMTP id o26mr2028107bkw.107.1252674081769; Fri, 11 Sep 2009 06:01:21 -0700 (PDT) In-Reply-To: <4AA90D88.4010004@eng.auth.gr> References: <4AA90D88.4010004@eng.auth.gr> Date: Fri, 11 Sep 2009 16:01:21 +0300 Message-ID: <9e20d71e0909110601kaa87f2em2e4e618b8feb306b@mail.gmail.com> From: Artis Caune To: George Mamalakis Content-Type: text/plain; charset=UTF-8 Cc: freebsd-stable@freebsd.org Subject: Re: FreeBSD 8.0-BETA4 IBM ServerRaid 8k issues X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 11 Sep 2009 13:25:21 -0000 2009/9/10 George Mamalakis : > Hello everybody, > > Yesterday I installed FreeBSD 8.0-BETA4 on an IBM 3650, having a ServerRaid > 8k adapter, and 6 sata disks on raid-6. > .... > aac0: COMMAND 0xffffff80003e08a0 TIMEOUT AFTER 40 SECONDS > aac0: COMMAND 0xffffff80003d5070 TIMEOUT AFTER 40 SECONDS > aac0: COMMAND 0xffffff80003e0d00 TIMEOUT AFTER 40 SECONDS > aac0: COMMAND 0xffffff80003d9440 TIMEOUT AFTER 40 SECONDS > .... > > ...and kept on like that, for many many lines, with decreasing timeouts. > Once the syncing process stopped, everything came back to normal (not that I > have stress-tested the machine, to be honest...). But since it happened > once, during this specific procedure, then maybe it could also happen when > the raid controller is reconstructing its volumes; and this would be very > annoying, as far as the server's efficiency (and/or maybe stability) is > concerned. Same problem here, thought we got timeouts also on idle boxes. IBM support told to switch controller channel speed from auto(3Gbps) to 1.5Gbps and update ServeRaid firmware. We are currently running 5.2.0-15429 (flashing them almost monthly :) ). You can change speed in raid bios, in Ctrl-A menu. But this issue is only with sata disks, sas works perfectly. -- Artis Caune Everything should be made as simple as possible, but not simpler.