From owner-freebsd-isp Sat Sep 28 14:15:38 1996 Return-Path: owner-isp Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id OAA18787 for isp-outgoing; Sat, 28 Sep 1996 14:15:38 -0700 (PDT) Received: from brasil.moneng.mei.com (brasil.moneng.mei.com [151.186.109.160]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id OAA18678; Sat, 28 Sep 1996 14:15:26 -0700 (PDT) Received: (from jgreco@localhost) by brasil.moneng.mei.com (8.7.Beta.1/8.7.Beta.1) id QAA00554; Sat, 28 Sep 1996 16:13:37 -0500 From: Joe Greco Message-Id: <199609282113.QAA00554@brasil.moneng.mei.com> Subject: Re: striping/mirroring? To: bsdscsi@shadows.aeon.net (mika ruohotie) Date: Sat, 28 Sep 1996 16:13:37 -0500 (CDT) Cc: freebsd-isp@freebsd.org, scsi@freebsd.org In-Reply-To: <199609281925.WAA05358@shadows.aeon.net> from "mika ruohotie" at Sep 28, 96 10:25:45 pm X-Mailer: ELM [version 2.4 PL24] Content-Type: text Sender: owner-isp@freebsd.org X-Loop: FreeBSD.org Precedence: bulk > strip with few drives, so that i can get speed, and then mirror it all > to one "safe" disk, so that i wont lost all of my data if the striping > crashes... Having used ccd extensively for the past year, on production news server systems, I think I can safely state that you need not concern yourself too much with "striping crashes"... you are more likely to run into a dead disk than a problem with ccd. I have over two dozen heavily utilized ccd partitions in operation and have not seen any problems with ccd. If you are looking purely for reliability, look for a RAID solution. RAID's are more reliable than a SLED (Single Large Expensive Disk). If you are looking for speed, either RAID or striping may be appropriate. Since I am generally interested primarily in speed, I use ccd and its striping capabilities. ... JG