From owner-freebsd-current Wed Oct 21 21:16:02 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id VAA24618 for freebsd-current-outgoing; Wed, 21 Oct 1998 21:16:02 -0700 (PDT) (envelope-from owner-freebsd-current@FreeBSD.ORG) Received: from abby.skypoint.net (abby.skypoint.net [199.86.32.252]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id VAA24550 for ; Wed, 21 Oct 1998 21:16:00 -0700 (PDT) (envelope-from bruce@zuhause.mn.org) Received: (from uucp@localhost) by abby.skypoint.net (8.8.7/jl 1.3) with UUCP id XAA14666; Wed, 21 Oct 1998 23:15:19 -0500 (CDT) Received: (from bruce@localhost) by zuhause.mn.org (8.9.1/8.9.1) id XAA05302; Wed, 21 Oct 1998 23:14:22 -0500 (CDT) (envelope-from bruce) From: Bruce Albrecht MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <13870.45342.532896.964071@zuhause.zuhause.mn.org> Date: Wed, 21 Oct 1998 23:14:22 -0500 (CDT) To: Greg Lehey Cc: Jaime Bozza , current@FreeBSD.ORG Subject: Re: Subdividing synthetic disks (was: newfs problems, more information:) In-Reply-To: <19981022091922.A1219@freebie.lemis.com> References: <13868.3117.390224.376379@zuhause.zuhause.mn.org> <003801bdfc74$da58cae0$313d31cc@electron.nuc.net> <13869.12610.899877.506387@zuhause.zuhause.mn.org> <19981021180032.X21008@freebie.lemis.com> <13869.58445.435772.587309@zuhause.zuhause.mn.org> <19981022091922.A1219@freebie.lemis.com> X-Mailer: VM 6.62 under 20.4 "Emerald" XEmacs Lucid Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Greg Lehey writes: > On Wednesday, 21 October 1998 at 8:40:29 -0500, Bruce Albrecht wrote: > > Greg Lehey writes: > >>> I never had any problem doing so. Here's my ccd's disklabel entry: > >>> > >>> (snip) > >> > >> Why do you want to do this? Would you still find a reason to do it > >> with vinum? > > > > I have a 3 disk CCD with multiple partitions set up because it appears > > to improve transfer rates by about 50% (IIRC) over having each > > partition on a separate drive. I know you advocate using one very > > large partition, but I prefer to keep my partitions small enough so > > that I can dump any of them to a 90 meter DAT tape (roughly 2 GB) > > without having to deal with tape swap. > > Hmm. Yes, that's a valid reason. It wouldn't be with vinum, because > you could then just create individual volumes. So each vinum volume is a logical disk, and you still get the performance boost from striping, but you get the other vinum features as well, such as raid-5 and the ability to add additional space to a volume on the fly? In my case, I'd just create volumes that are 2 GB or less. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message