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Date:      Sun, 11 Nov 2001 22:37:58 +0100
From:      Paul van der Zwan <paulz@trantor.xs4all.nl>
To:        Mike Smith <msmith@FreeBSD.ORG>
Cc:        sos@freebsd.dk, Greg Lehey <grog@FreeBSD.ORG>, john_wilson100@excite.com, freebsd-hackers@FreeBSD.ORG, sos@FreeBSD.ORG, paulz@trantor.xs4all.nl
Subject:   Re: HPT370 RAID or Vinum? 
Message-ID:  <200111112137.fABLbwj09918@trantor.xs4all.nl>
In-Reply-To: Message from Mike Smith <msmith@FreeBSD.ORG>  of "Sun, 11 Nov 2001 13:05:04 PST." <200111112105.fABL54801504@mass.dis.org> 

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In message <200111112105.fABL54801504@mass.dis.org>, Mike Smith wrote:
>> > These "cheap controllers" don't have any algorithms at all to speak of; 
>> > they're just ATA controllers with BIOS code that supposedly understands 
>> > striping/mirroring.
>> 
>> There is no algorithm to speak of involved with striping, and just 
>> a little more in mirroring in the error case, but anyways..
>
>Unless you've fixed it, the error case handling in mirror mode is busted 
>as well.
>
>> > The "algorithms" are in the 'ar' driver, which should really just be a 
>> > vinum shim.
>> 
>> Well, the way vinum is implemented that wont work unfortunately.
>
>There's no reason that 'ar' and Vinum couldn't be fixed to play together.
>
>Or at least, no technical reason.

Well, currently there are some minor glitches. I just installed a vinum slice
on /dev/ar0s1 and unless I do a 'vinum read /dev/ar0s1' vinum will not
find the volumes. This causes the boot of my box ( -current btw) to fail
at the mount of my filesystems. 
Is there a way to tell vinum to also look on /dev/ar* for its config ??

	Paul

-- 
Klein bottle for rent -- inquire within.



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