Date: Tue, 2 Jan 2001 21:41:41 -0800 (PST) From: Tom <tom@uniserve.com> To: Zero Sum <count@shalimar.net.au> Cc: Jim King <jim@jimking.net>, Alfred Perlstein <bright@wintelcom.net>, Thomas Seck <tmseck@web.de>, freebsd-stable@FreeBSD.ORG Subject: Re: Vinum safe to use for raid 0? Message-ID: <Pine.BSF.4.05.10101022128150.19020-100000@shell.uniserve.ca> In-Reply-To: <01010315274900.04373@shalimar.net.au>
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On Wed, 3 Jan 2001, Zero Sum wrote: ... > Jim and Tom mention the factor of expense. In Australia, I think we pay > about five times the price that Americans seem to (this is not a > price/currency conversion) but I still can't take that factor seriously. > Disk space is *cheap*. As Tom says, for reliability and performance > RAID1/0 wins. Using RAID 5 is "spoiling the ship for a pennyworth of tar", > or so it seems to me. Disk seems cheap. It is much more expensive than you realize, one you factor in enclosures, interfaces, power supplies, cabling, cooling, etc. Then factor in downtime if you use poor quality components at any point in the system. Also, factor in downtime if any part of the system is non-redundant. Then factor in management devices (SAF-TE), so you can determine whether your disks, power supplies, and fans are still working or not. If you've ever worked on large storage systems in a 24x7, you'd have a better appreciation of the TCO of disk space. Tom Uniserve To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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