Date: Wed, 4 Apr 2001 17:19:31 -0700 From: Patrick Calkins <pcalkins@oemsupport.com> To: 'Greg Lehey' <grog@lemis.com>, "Freebsd-Questions (E-mail)" <freebsd-questions@freebsd.org> Subject: RE: RAID Message-ID: <69DACACD9391054995E110C9B2819CFD0278E7@puke.oem.oemsupport.com>
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Humm.. if the code for RAID is somewhat buggy, I was wondering what the big sites (like Yahoo) use to get around this... I know that Yahoo uses FreeBSD, and with a site as big as theirs I would think loss of data would be a top priority for them, hence the implementation of RAID on those boxes... any comments? -----Original Message----- From: Greg Lehey [mailto:grog@lemis.com] Sent: Tuesday, April 03, 2001 5:18 PM To: Vallo Kallaste Cc: Orville R. Weyrich, JR.; questions@FreeBSD.ORG Subject: Re: RAID On Tuesday, 3 April 2001 at 14:28:12 +0200, Vallo Kallaste wrote: > On Tue, Apr 03, 2001 at 01:16:10AM -0700, "Orville R. Weyrich, JR." <orville@weyrich.com> wrote: > >> I happen to have come by six identical 4.3 GB SCSI hard drives, and was >> wondering about an inexpensive way to make a FreeBSD server that uses >> them. My manual on FreeBSD covers version 3.2 -- I realize there are >> newer versions, but my search of the FreeBSD web site doesn't turn up my >> answer. >> >> Is there a way to implement RAID-5 with a couple standard SCSI >> controllers (the kind at eBay for under $100) or do I need to buy a >> specialized RAID-5 controller card? >> >> Am I asking for too much? :-) If it isn't too much, where do I go from >> here? > > You can use vinum volume manager, look at > http://www.vinumvm.org/ > > Use recent -stable for implementing vinum and beware that RAID-5 is > considered somewhat buggy, at least that's what I gather from > postings in the lists. A couple of bugs have surfaced in the RAID-5 code recently. I have committed fixes for one, and the other is fixed but not committed. > Use two controllers, three disks each. That depends on the controllers. You could get away with one. Greg -- When replying to this message, please copy the original recipients. If you don't, I may ignore the reply. For more information, see http://www.lemis.com/questions.html Finger grog@lemis.com for PGP public key See complete headers for address and phone numbers To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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