Date: Sat, 18 Oct 1997 21:27:19 +0000 From: =?iso-8859-1?Q?=DEor=F0ur?= Ivarsson <totii@est.is> To: mika ruohotie <bsdhw@shadows.aeon.net> Cc: hardware@FreeBSD.ORG Subject: Re: raid Message-ID: <344929B6.41C67EA6@est.is> References: <199710171352.PAA11906@shadows.aeon.net>
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mika ruohotie wrote: > > uh, is there documentation exactly how much more disk space one > gains when plugging another drive into raid system. > > generally i'm interested in raid5. > > 3 drives is the minimum, right? > > then 4th drive gives the hot spare. how about 5th? 6th? 7th? > > a graph would be nice. > > what about unstandard raid's (6 7 8 9 10, some of those might not even > exist, but i believe i've seen at least 6 7 and 10) > > mickey I installed Mylex EISA raid controllers in two Novell fileservers using 500MB disks serveral years ago. The installation gave me 2GB using 5 disks 2.5GB using 6 disks. The final installation in both cases was using 6 disks and the seventh for online backup. Thordur Ivarsson thivars@est.is
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