From owner-freebsd-questions@FreeBSD.ORG Tue Jul 24 19:45:29 2012 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 0F9971065673 for ; Tue, 24 Jul 2012 19:45:29 +0000 (UTC) (envelope-from dweimer@dweimer.net) Received: from webmail.dweimer.net (24-240-198-187.static.stls.mo.charter.com [24.240.198.187]) by mx1.freebsd.org (Postfix) with ESMTP id B0FA38FC19 for ; Tue, 24 Jul 2012 19:45:28 +0000 (UTC) Received: from www.dweimer.net (webmail.dweimer.net [192.168.5.1]) by webmail.dweimer.net (8.14.5/8.14.5) with ESMTP id q6OJjSq3026398 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 24 Jul 2012 14:45:28 -0500 (CDT) (envelope-from dweimer@dweimer.net) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Date: Tue, 24 Jul 2012 14:45:27 -0500 From: dweimer To: Organization: dweimer.net Mail-Reply-To: In-Reply-To: References: Message-ID: X-Sender: dweimer@dweimer.net User-Agent: Roundcube Webmail/0.8-rc Subject: Re: Disk Errors X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: dweimer@dweimer.net List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 24 Jul 2012 19:45:29 -0000 On 2012-07-24 13:37, jb wrote: > dweimer dweimer.net> writes: > >> ... >> ad4: TIMEOUT - WRITE_DMA48 retrying (1 retry left) LBA=817755328 >> ad4: WARNING - WRITE_DMA48 UDMA ICRC error (retrying request) >> LBA=837397120 >> ... > > There is a story about it: > > http://linux-bsd-sharing.blogspot.com/2009/03/howto-fix-sata-dma-timeout-issues-on.html > > But do not rush, read the comments as well: > ... > "Tony Schwartz said... > > Thing is though, I have a secondary issue. This second issue is > probably > what caused the first issue (DMA TIMEOUTS) to begin with. My disks > keep > spinning down then up, every 20 seconds or so. I have no idea why > this is > happening, but it's not just one disk. I think that it was timing out > because > he disk goes to spin up and that takes too long. Any ideas here? I've > used > atacontrol and it's not configured to spindown. Thanks." > ... > " > Benjamin said... > > LoL, found the solution and feeling a little embarrassed by it. > Good thing > I got a GURU in the forums to look at it. > > It was just the power supply and my disk was spinning down cos > the power > wasn't sufficient to run 6 HDs and 9 fans for cooling ha ha ha." > ... > " I wouldn't expect power as the external dock has its own power supply, I would expect this to occur on the other drives as well. Though its possible the Seagate drive requires more power than the Western Digital drives, I think I will look up the specs tonight on that, as well as do some searching on the eSATA doc to verify that there haven't been any problems with it and Seagate drives > CyberRax said... > > Just for information: while this hasn't been fixed as elegantly > as in the > patch FreeBSD does incorporate since 8-STABLE r199158 a solution for > the > problem: ATA_REQUEST_TIMEOUT kernel option that be be set higher than > the > default 5. > What is needed is adding "options ATA_REQUEST_TIMEOUT=X" (where X > is > timeout in seconds) into the kernel configuration file. > Changing the timeout will need rebuilding and installing the > kernel, but > it's still better than nothing." > > jb > > > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to > "freebsd-questions-unsubscribe@freebsd.org" -- Thanks, Dean E. Weimer http://www.dweimer.net/