From owner-freebsd-hackers Thu Sep 25 15:17:58 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id PAA17449 for hackers-outgoing; Thu, 25 Sep 1997 15:17:58 -0700 (PDT) Received: from usr04.primenet.com (tlambert@usr04.primenet.com [206.165.6.204]) by hub.freebsd.org (8.8.7/8.8.7) with ESMTP id PAA17443 for ; Thu, 25 Sep 1997 15:17:53 -0700 (PDT) Received: (from tlambert@localhost) by usr04.primenet.com (8.8.5/8.8.5) id PAA03582; Thu, 25 Sep 1997 15:17:48 -0700 (MST) From: Terry Lambert Message-Id: <199709252217.PAA03582@usr04.primenet.com> Subject: Re: iostat question To: joe@via.net (Joe McGuckin) Date: Thu, 25 Sep 1997 22:17:48 +0000 (GMT) Cc: hackers@FreeBSD.ORG In-Reply-To: <199709251917.MAA04978@monk.via.net> from "Joe McGuckin" at Sep 25, 97 12:17:13 pm X-Mailer: ELM [version 2.4 PL23] Content-Type: text Sender: owner-freebsd-hackers@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk > Why doesn't iostat report info for ccd devices? The kernel treats the > ccd devive like a 'real' disk. I assume it must have the same data structures > that a 'sd' device has that iostat examines. Because iostat copies out device data, and to make it work for this use would require going to a functional rather than a data interface to get it's data. A functional interface could do the necessary work to agregate the information from the devices the ccd driver is spanning. Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers.