From owner-freebsd-questions@FreeBSD.ORG Tue Jul 24 21:12:00 2012 Return-Path: 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 5F4A11065673 for ; Tue, 24 Jul 2012 21:12:00 +0000 (UTC) (envelope-from wblock@wonkity.com) Received: from wonkity.com (wonkity.com [67.158.26.137]) by mx1.freebsd.org (Postfix) with ESMTP id 1B0578FC1C for ; Tue, 24 Jul 2012 21:12:00 +0000 (UTC) Received: from wonkity.com (localhost [127.0.0.1]) by wonkity.com (8.14.5/8.14.5) with ESMTP id q6OLAZEr062545; Tue, 24 Jul 2012 15:10:35 -0600 (MDT) (envelope-from wblock@wonkity.com) Received: from localhost (wblock@localhost) by wonkity.com (8.14.5/8.14.5/Submit) with ESMTP id q6OLAZJG062542; Tue, 24 Jul 2012 15:10:35 -0600 (MDT) (envelope-from wblock@wonkity.com) Date: Tue, 24 Jul 2012 15:10:35 -0600 (MDT) From: Warren Block To: dweimer In-Reply-To: Message-ID: References: User-Agent: Alpine 2.00 (BSF 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; format=flowed; charset=US-ASCII X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.7 (wonkity.com [127.0.0.1]); Tue, 24 Jul 2012 15:10:35 -0600 (MDT) Cc: FreeBSD Questions Subject: Re: Disk Errors 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, 24 Jul 2012 21:12:00 -0000 On Tue, 24 Jul 2012, dweimer wrote: > Just curious, I am sure the likely issue is a bad disk, but I thought there > might be a chance this could be caused by possibly by something else. > > I have three 1TB disks I use for backup, two of them are Western Digital > drives I bought specifically for this purpose. One is a Seagate drive that > came out of a barebones PC that I replaced with a couple smaller drives in a > stripe to gain performance. I use the drives in an external SATA dock, using > geom eli encryption, the western digital drives give me no problems, but the > seagate drive gives me a lot of the following errors under load. > > ad4: TIMEOUT - WRITE_DMA48 retrying (1 retry left) LBA=817755328 > ad4: WARNING - WRITE_DMA48 UDMA ICRC error (retrying request) LBA=837397120 > ad4: TIMEOUT - WRITE_DMA48 retrying (1 retry left) LBA=879786112 > ad4: WARNING - WRITE_DMA48 UDMA ICRC error (retrying request) LBA=882931200 > ad4: WARNING - WRITE_DMA48 UDMA ICRC error (retrying request) LBA=890542016 > ad4: WARNING - WRITE_DMA48 UDMA ICRC error (retrying request) LBA=902767296 > ad4: TIMEOUT - WRITE_DMA48 retrying (1 retry left) LBA=904071296 > > dmesg info about the drive at connection time: > ad4: 953869MB at ata2-master UDMA100 SATA 3Gb/s There are more than a few problem reports on the net concerning that drive, even on Seagate's own forums. Both hardware problems and firmware problems. Your later post says you have firmware version CC46, and Seagate has an update to CC49. That's worth a try. http://knowledge.seagate.com/articles/en_US/FAQ/213891en?language=en_US