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Date:      Wed, 18 Feb 2004 16:32:57 +1100
From:      Tony Frank <tfrank@optushome.com.au>
To:        "Greg 'groggy' Lehey" <grog@freebsd.org>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: vinum raid5 subdisks keep changing length?
Message-ID:  <20040218053257.GA289@marvin.home.local>
In-Reply-To: <20040217120136.GB20535@marvin.home.local>
References:  <20040216110444.GA83416@marvin.home.local> <20040216232130.GR33797@wantadilla.lemis.com> <20040217003926.GA19004@marvin.home.local> <20040217072306.GH33797@wantadilla.lemis.com> <20040217120136.GB20535@marvin.home.local>

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Hi again,

On Tue, Feb 17, 2004 at 11:01:36PM +1100, Tony Frank wrote:

[ ... ]

> Despite this logging oddity everything else appears to work just fine using 4.9-RELEASE.
> 
> I am currently building world based on RELENG_4 cvsup from this evening.
> Will try it all again with the new kernel & world probably tomorrow.
> 
> Main thing that is different is that I no longer have a vinum root environment.
> I might try to rebuild that while I wait for world to build.
> Vinum root needs a bit more planning from the start due to disk offsets and the like...

[ ... ]

> 
> Will further report tomorrow on outcome of further testing.
> Scenarios:
> data raid5 with vinum root on 4.9-RELEASE
> plain data raid5 with RELENG_4
> data raid5 with vinum root on RELENG_4

Well I have rebuilt my setup with vinum root + raid5 data volume.
I originally rebuilt it on 4.9-RELEASE GENERIC kernel + world from CD #1.
Without going so far as to do hardware failure testing, I did not observe
any problems other than the lack of vinum entries from bootup in the logs.

I then upgraded the system to RELENG_4 GENERIC kernel (cvsup yesterday) and
world built from same sources.
Still no problems after reboots or as a result of any other 'normal' operations.

I then built & installed a custom kernel based on RELENG_4 GENERIC (remove lot 
of drivers and add IPFW etc) and still it all works fine and without any 
obvious issues.

As such I suspect the previous scenario was likely a result of user error and 
some obscure combination of events.

If I'm bored again tomorrow I might rebuild the lot again but starting with
the RELENG_4 level instead of 4.9-RELEASE to see if that has any impacts.

Thanks for your time,

Tony



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