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Date:      Wed, 25 Jul 2007 17:20:22 +0100 (BST)
From:      "Mark Powell" <M.S.Powell@salford.ac.uk>
To:        Doug Rabson <dfr@rabson.org>
Cc:        freebsd-fs@freebsd.org
Subject:   Re: ZfS & GEOM with many odd drive sizes
Message-ID:  <20070725171343.M61339@rust.salford.ac.uk>
In-Reply-To: <6FF8729F-B449-4EFA-B3C6-8B9A9E6F6C4F@rabson.org>
References:  <20070719102302.R1534@rust.salford.ac.uk>  <20070719135510.GE1194@garage.freebsd.pl> <20070719181313.G4923@rust.salford.ac.uk> <20070721065204.GA2044@garage.freebsd.pl> <20070725095723.T57231@rust.salford.ac.uk> <1185355848.3698.7.camel@herring.rabson.org> <20070725103746.N57231@rust.salford.ac.uk> <3A5D89E1-A7B1-4B10-ADB8-F58332306691@rabson.org> <20070725120913.A57231@rust.salford.ac.uk> <6FF8729F-B449-4EFA-B3C6-8B9A9E6F6C4F@rabson.org>

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On Wed, 25 Jul 2007, Doug Rabson wrote:

> On 25 Jul 2007, at 12:17, Mark Powell wrote:
>> Great work. That will be zfs mirror only right?
>
> The code is close to being able to support collections of mirrors. No raidz 
> or raidz2 for now though.

That's great news.
   So that would mean, if a raidz vdev was required on a system another 
pool would have to be created with only a mirror vdev in it, to have / on 
zfs too?
   Considering the work involved, is raidz / support really worth it? Of 
course, it's fantastic if you plan to tackle it, but I don't envy you the 
task :(

>> So back to my original question :)
>>  If one drive in a gconcat gc1 (ad2s2+ad3s2), say ad3 fails, and the broken 
>> gconcat is completely replaced with a new 500GB drive ad2, is fixing that 
>> as simple as:
>> 
>> zpool replace tank gc1 ad2
>
> That sounds right.

Thanks for the info. It's good to know how to fix an array before it's 
created :)
   Cheers.

-- 
Mark Powell - UNIX System Administrator - The University of Salford
Information Services Division, Clifford Whitworth Building,
Salford University, Manchester, M5 4WT, UK.
Tel: +44 161 295 4837  Fax: +44 161 295 5888  www.pgp.com for PGP key



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