From owner-freebsd-questions Mon Mar 11 10:38: 9 2002 Delivered-To: freebsd-questions@freebsd.org Received: from tcpns.com (dsl-64-192-239-221.telocity.com [64.192.239.221]) by hub.freebsd.org (Postfix) with ESMTP id DB15137B416 for ; Mon, 11 Mar 2002 10:37:57 -0800 (PST) Received: from localhost (localhost [127.0.0.1]) by tcpns.com (8.12.2/8.12.2) with ESMTP id g2BIbr78004056; Mon, 11 Mar 2002 13:37:53 -0500 (EST) Date: Mon, 11 Mar 2002 13:37:53 -0500 (EST) From: Jason Borkowsky To: questions@freebsd.org Cc: scottro@nyc.rr.com, Subject: Re: UDMA ICRC error writing Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG >>I've recently been getting the following error on my FreeBSD system, >>Anyone know what could cause it? >>Could it be a broken HD? >>How do i fix it? >>Thanx >>Error: >>ad0s1a: UDMA ICRC error writing fsbn 13416703 of 6197344-6197375 (ad0s1 bn >>13416703; cn 835 tn 38 sn 34) >Replace your IDE cable with shielded 80 pin ATA100 cable and it should go >away. Notice the word "should". I have two sets of these cables, and I still get the problem. I also get the problem irregardless of hard drive I use (I have an IBM, Seagate, and a Maxtor). The problem in my case seems to be certain incompatibilies between ATA100 drives and ATA66 motherboards (mine is an A-bit KT7). The get the errors to go away (and avoid possible data corruption), you can always do a: sysctl hw.atamodes=pio,---,---,---, This will slow the read/write speed to 16Mb/s, which is no big deal in my case as I am a file server to the outside world over a 192Kb/s DSL link. Other than that, I haven't heard of any fixes for the issues bewteen hard drives and motherboards. I also have an A-bit KG-7 motherboard and do not have the problem with it when using the same hard drives and cables. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message