From owner-freebsd-stable@FreeBSD.ORG Thu Jul 19 17:27:18 2012 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id D85ED1065680 for ; Thu, 19 Jul 2012 17:27:18 +0000 (UTC) (envelope-from prvs=154700e5ee=killing@multiplay.co.uk) Received: from mail1.multiplay.co.uk (mail1.multiplay.co.uk [85.236.96.23]) by mx1.freebsd.org (Postfix) with ESMTP id 656728FC1D for ; Thu, 19 Jul 2012 17:27:18 +0000 (UTC) X-Spam-Processed: mail1.multiplay.co.uk, Thu, 19 Jul 2012 18:27:13 +0100 X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on mail1.multiplay.co.uk X-Spam-Level: X-Spam-Status: No, score=-5.0 required=6.0 tests=USER_IN_WHITELIST shortcircuit=ham autolearn=disabled version=3.2.5 Received: from r2d2 ([188.220.16.49]) by mail1.multiplay.co.uk (mail1.multiplay.co.uk [85.236.96.23]) (MDaemon PRO v10.0.4) with ESMTP id md50020850580.msg for ; Thu, 19 Jul 2012 18:27:12 +0100 X-MDRemoteIP: 188.220.16.49 X-Return-Path: prvs=154700e5ee=killing@multiplay.co.uk X-Envelope-From: killing@multiplay.co.uk X-MDaemon-Deliver-To: freebsd-stable@freebsd.org Message-ID: From: "Steven Hartland" To: "James Snow" , "Dr Joe Karthauser" References: <20120719152909.GL32960@teardrop.org><002D6A20-D2A4-4909-B2EA-3DB562326050@tao.org.uk> <20120719171548.GM32960@teardrop.org> Date: Thu, 19 Jul 2012 18:27:19 +0100 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5931 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6157 Cc: freebsd-stable@freebsd.org Subject: Re: Checksum errors across ZFS array 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: Thu, 19 Jul 2012 17:27:18 -0000 ----- Original Message ----- From: "James Snow" > On Thu, Jul 19, 2012 at 06:05:32PM +0100, Dr Joe Karthauser wrote: > >> Hi James, >> >> It's almost definitely a memory problem. I'd change it ASAP if I were >> you. >> >> I lost about 70mb from my zfs pool for this very reason just a few >> weeks ago. Luckily I had enough snapshots from before the rot set in >> to recover most of what I lost. > > Thanks for the input. I will run a memory test against it. > > If I may, why "almost definitely" a memory problem and not an issue with > the controller? (Or did you mean the controller memory?) I wouldn't say definitely, its likely, but other hardware as per my previous mail can be the cause. Regards Steve ================================================ This e.mail is private and confidential between Multiplay (UK) Ltd. and the person or entity to whom it is addressed. In the event of misdirection, the recipient is prohibited from using, copying, printing or otherwise disseminating it or any information contained in it. In the event of misdirection, illegible or incomplete transmission please telephone +44 845 868 1337 or return the E.mail to postmaster@multiplay.co.uk.