Date: Tue, 18 Jun 2002 17:14:37 -0600 From: "John Nielsen" <stable@jnielsen.net> To: "stable list" <freebsd-stable@freebsd.org> Subject: Re: the new ATA driver vs. vinum Message-ID: <108201c2171d$ea673d00$0900a8c0@max> References: <DBEFLLCPEGLPEAGOPLIHIEEODKAA.patrick-fbsdstable@mindstep.com> <0fb301c2170c$df665ff0$0900a8c0@max> <20020618215151.GB9829@luke.immure.com>
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----- Original Message ----- From: "Bob Willcox" <bob@immure.com> To: "John Nielsen" <stable@jnielsen.net> Cc: "stable list" <freebsd-stable@freebsd.org> Sent: Tuesday, June 18, 2002 3:51 PM Subject: Re: the new ATA driver vs. vinum > On Tue, Jun 18, 2002 at 03:12:36PM -0600, John Nielsen wrote: > > > > Bear in mind that atacontrol is a utility to interact with a hardware ATA > > raid controller, and doesn't do RAID itself. Vinum allows you to do RAID > > without any special hardware. ATA RAID was possible in 4.5, you just had to > > rely on the RAID controller's BIOS to set it up and manage it if there was a > > problem. > > Actually, with the new ata driver and atacontrol you can do raid w/o an > ata raid controller with some restrictions. From the atacontrol man page: > > Allthough the ATA driver allows for creating an ATA RAID on > disks on any controller, there are restrictions. It is only pos- > sible to boot on an array if its either located on a "real" ATA > RAID controller like the Promise or Highpoint controllers, or if > the RAID declared is of RAID1 or SPAN type, in case of a SPAN > the partition to boot must reside on the first disk in the SPAN. > > So as long as you don't want/need to boot from the RAID, any IDE > controller should work. I stand corrected! I'll have to look into that some more. :) > I have several systems here runing both a RAID0 and a RAID0+1 array > using a standard non-RAID promise IDE controllers (TX2's as I recall). > Works fine! :-) > > Bob > > -- > Bob Willcox Dealing with failure is easy: work hard to improve. > bob@vieo.com Success is also easy to handle: you've solved the > Austin, TX wrong problem. Work hard to improve. > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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