From owner-freebsd-current Tue Mar 21 15:18:48 2000 Delivered-To: freebsd-current@freebsd.org Received: from rover.village.org (rover.village.org [204.144.255.49]) by hub.freebsd.org (Postfix) with ESMTP id A1C5A37B84A for ; Tue, 21 Mar 2000 15:18:33 -0800 (PST) (envelope-from imp@harmony.village.org) Received: from harmony.village.org (harmony.village.org [10.0.0.6]) by rover.village.org (8.9.3/8.9.3) with ESMTP id QAA24746; Tue, 21 Mar 2000 16:18:31 -0700 (MST) (envelope-from imp@harmony.village.org) Received: from harmony.village.org (localhost.village.org [127.0.0.1]) by harmony.village.org (8.9.3/8.8.3) with ESMTP id QAA26473; Tue, 21 Mar 2000 16:18:18 -0700 (MST) Message-Id: <200003212318.QAA26473@harmony.village.org> To: Poul-Henning Kamp Subject: Re: Reading from bad disk ? Cc: Luigi Rizzo , Soren Schmidt , current@FreeBSD.ORG In-reply-to: Your message of "Tue, 21 Mar 2000 13:16:34 +0100." <25230.953640994@critter.freebsd.dk> References: <25230.953640994@critter.freebsd.dk> Date: Tue, 21 Mar 2000 16:18:18 -0700 From: Warner Losh Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG : >A comment: this is a 18GB IBM 7200 RPM disk and i noticed it tends : >to become very hot compared to other disks when mounted in the : >same machine (on a removable frame). Do others have the same : >experience ? Yes. They run very hot. I had to steal an old powersupply fan and mount it in front of the drive to get it to run at a reasonable temperature. W/o the fan, it was running at 58C or so. With the fan it runs at 39C or so. I've included the script that I use to find this information out. Ken Merry sent it to me. It works on some IBM drives. Warner #!/bin/sh TEMPC=`camcontrol cmd -v -n da -u 0 -c "4D 0 76 0 0 0 0 0 20 0" -i 32 "s9 i1"` TEMPF=`echo " 2 k $TEMPC 9 * 5 / 32 + p" | dc` echo "The temperature is: $TEMPF F $TEMPC C" To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message