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Date: Sat, 9 Jun 2007 03:08:26 +0100
From: Josef Karthauser <joe@FreeBSD.org>
To: Bakul Shah <bakul@bitblocks.com>
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Cc: current@FreeBSD.org
Subject: Re: zfs drive configurations?
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On Fri, Jun 08, 2007 at 06:17:24PM -0700, Bakul Shah wrote:
>=20
> > What if I have 5 200gb drives configured as a raidz pool, and then I
> > replace one of the 200gb drives with a 400gb one.  Operationally what
> > would I do?
>=20
> I believe you can do something like
>=20
>     zpool replace <pool> <device>
>=20
> The new device will get "resilvered" -- get all the missing
> data put on it and then brought up for operation.  This can
> take a while.
>=20
> Note that you will not be able to use the extra disk until
> *all* the disks in a group (mirror or raid) have been
> replaced with bigger disks.

Does it make sense to partition my disks into some nominal smaller
chunks: D1a-g, D2a-g, ... D5a-g and run a number of raidz across the
drives in parallel, D1a D2a .. D5a, etc?

Joe