From owner-freebsd-isp Tue May 13 21:41:29 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.5/8.8.5) id VAA15995 for isp-outgoing; Tue, 13 May 1997 21:41:29 -0700 (PDT) Received: from time.cdrom.com (root@time.cdrom.com [204.216.27.226]) by hub.freebsd.org (8.8.5/8.8.5) with ESMTP id VAA15990 for ; Tue, 13 May 1997 21:41:27 -0700 (PDT) Received: from time.cdrom.com (jkh@localhost [127.0.0.1]) by time.cdrom.com (8.8.5/8.6.9) with ESMTP id VAA13409 for ; Tue, 13 May 1997 21:41:50 -0700 (PDT) To: isp@freebsd.org Subject: ccd - pretty awesome! Date: Tue, 13 May 1997 21:41:50 -0700 Message-ID: <13405.863584910@time.cdrom.com> From: "Jordan K. Hubbard" Sender: owner-isp@freebsd.org X-Loop: FreeBSD.org Precedence: bulk OK, so maybe I'm the last guy on my block to try out ccd, but now that I have I just wanted to say "WOW!" I took two reasonably identical P6/200 machines, one with a single 4Gb drive and another with 5 2Gb drives configured into a single CCD volume (fast/wide Quantum drives in both cases). I then built the world in -current from a standing start (no obj). My times: Single drive: 2:30 CCD: 1:45 I'd say that's a fairly significant difference! Removing large numbers of files also *flies* on the ccd array (both single drive and ccd array mounted async) as do most other operations. I'm impressed. I dunno, but I'm going to have to review my strategy of buying large, single drives now in light of this. ;-) Jordan