From owner-freebsd-questions Mon Mar 31 17:21:43 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.5/8.8.5) id RAA26303 for questions-outgoing; Mon, 31 Mar 1997 17:21:43 -0800 (PST) Received: from caliban.dihelix.com (caliban.mrtc.org [199.4.33.251]) by freefall.freebsd.org (8.8.5/8.8.5) with ESMTP id RAA26284; Mon, 31 Mar 1997 17:21:35 -0800 (PST) Received: (from langfod@localhost) by caliban.dihelix.com (8.8.5/8.8.3) id PAA18175; Mon, 31 Mar 1997 15:21:03 -1000 (HST) Message-Id: <199704010121.PAA18175@caliban.dihelix.com> Subject: Re: Problem with ccdconfig on 2.2 In-Reply-To: <199704010027.QAA03196@silvia.HIP.Berkeley.EDU> from Satoshi Asami at "Mar 31, 97 04:27:47 pm" To: asami@vader.cs.berkeley.edu (Satoshi Asami) Date: Mon, 31 Mar 1997 15:21:02 -1000 (HST) Cc: langfod@dihelix.com, kuku@gilberto.physik.RWTH-Aachen.DE, questions@freebsd.org, scsi@freebsd.org From: "David Langford" X-blank-line: This space intentionaly left blank. X-Mailer: ELM [version 2.4ME+ PL31 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-questions@freebsd.org X-Loop: FreeBSD.org Precedence: bulk > * Thanks alot. Now I just need to figure out what interleave values to use. > >man 4 ccd? :) >Satoshi I have RTFM'ed :) Doesn't mean I am unconfused though :-/ The problems I run into are: in the man page it talks about ther being a difference between striping for reads versus writes. I dont see this being possible when I look at ccdconfig. Also the way sysinstall configured my disk they only have one track. I dont think I want my interleave factor to be 4 million blocks. So far I have been doing different interleaves and then running iozone to see which it likes best. Thanks, -David Langford langfod@dihelix.com