From owner-freebsd-current@FreeBSD.ORG Wed Oct 27 22:12:21 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id EFE5516A556 for ; Wed, 27 Oct 2004 22:12:21 +0000 (GMT) Received: from mail.vicor-nb.com (bigwoop.vicor-nb.com [208.206.78.2]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9A86D43D2F for ; Wed, 27 Oct 2004 22:12:20 +0000 (GMT) (envelope-from julian@elischer.org) Received: from elischer.org (julian.vicor-nb.com [208.206.78.97]) by mail.vicor-nb.com (Postfix) with ESMTP id 5F48A7A423; Wed, 27 Oct 2004 15:12:20 -0700 (PDT) Message-ID: <41801D44.1060504@elischer.org> Date: Wed, 27 Oct 2004 15:12:20 -0700 From: Julian Elischer User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.3.1) Gecko/20030516 X-Accept-Language: en, hu MIME-Version: 1.0 To: Andreas Braukmann References: <20041027194551.54ced1e7.lehmann@ans-netz.de> <20041027175440.GA60198@xor.obsecurity.org> <20041027201443.44f3bb03.lehmann@ans-netz.de> <5521E0229FFC0CAECEA5EA17@[192.168.225.210]> <417FFE5A.2070405@elischer.org> <85C963600BB244852D738B91@[192.168.225.210]> In-Reply-To: <85C963600BB244852D738B91@[192.168.225.210]> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit cc: freebsd-current@freebsd.org cc: Oliver Lehmann cc: Kris Kennaway Subject: Re: growfs - Using on mounten FS - planned?- TWE probs.. X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 27 Oct 2004 22:12:22 -0000 Andreas Braukmann wrote: > --On Mittwoch, 27. Oktober 2004 13:00 Uhr -0700 Julian Elischer > wrote: > >> Andreas Braukmann wrote: >> >>> >>> I'll have to test this on gvinum / UFS2 during the next few weeks, >>> because of a 2 TByte storage server running 5.3 has to go in pro- >>> duction in early December. >> >> >> >> what storage are you using? > > > twe(4) and a bunch of big S-ATA drives in RAID-5 configuration. > Nothing really impressive nowadays. I'm having infrequent corruption problems with 3ware 7500-8 cards . do you check your data? We store GB sized files and we checksum them and we check the checksums over time.... Over 7 servers we see a couple of file drop chunks of data over a weeks worth of writing.. either 128KB chunks are not written or the chunk corresponding to 1 drive's part of a 128KB write never happens. Some of them are defintly firmware problems but some of them might be driver or OS problems too (or firmware). The data goes missing immediatly on write.. not through degradation, so we immediatly resend the data and rewrite the file. This is with 4.8 + the driver from their website.. and the driver from 4.10 > > > > > -Andreas > > >