Date: Tue, 5 Nov 1996 11:40:12 -0600 (CST) From: Joe Greco <jgreco@brasil.moneng.mei.com> To: michaelv@MindBender.serv.net (Michael L. VanLoon -- HeadCandy.com) Cc: richardc@csua.berkeley.edu, isp@FreeBSD.org Subject: Re: /usr/obj size Message-ID: <199611051740.LAA06990@brasil.moneng.mei.com> In-Reply-To: <199611050817.AAA15590@MindBender.serv.net> from "Michael L. VanLoon -- HeadCandy.com" at Nov 5, 96 00:17:54 am
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> The reason I keep saying 2GB is because that seems to be the current > "sweet spot" where the price per gigabyte is lowest, and the > performanc is at least "good". For price, 2GB is your ticket. For performance, 1GB is (I have recently paid the "premium" to get a dozen and a half ST-31055N's... ouch... it hurts, but you get almost double the throughput for having spent about 30% more than the 2GB drives would have cost). > Of course 7200RPM drives are faster. But, if you can buy an extra > drive or two, and put that in the stripe set, with the money you save > by going 5400RPM, that extra drive might just make up the difference > in speed. So, to say it the other way around: no, you don't need > 7200RPM drives. Yes. I will put a two-disk stripe of a pair of ST-31055N Hawk-2 drives (9ms, 5400RPM, etc) up against a single ST-32550N Barracuda (8ms, 7200RPM) any day and beat it by a fair margin. And relatively speaking, with the 32550N's hovering around $650 and 31055N's around $320, tell me what makes more sense to do :-) But I will grant that the 32155N's, in the low 5's are attractive too. ... JG
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