I did this on Solaris 10u3.  4 120GB -> 4 500GB drives.  Replace, resilver;
repeat until all all drives replaced.

On 5/14/07, Alec Muffett <[EMAIL PROTECTED]> wrote:



Hi All,

My mate Chris posed me the following; rather than flail about with
engineering friends trying to get a "definitive-de-jour" answer,
I thought instead to introduce him to the relevant opensolaris forum
in the hope of broadening the latter's appeal.

So: RAID-Z hot swap to larger disks and thereby upgrade?

Doable, not, or unwise?

I suspect the proper thing to do would be to build the six new large
disks into a new RAID-Z vdev, add it as a mirror of the older,
smaller-disk RAID-Z vdev, rezilver to zynchronize them, and then break
the mirror.

But I'd like a second opinion?

        - alec


>Hiya Alec,
>
>Mark Baily here at VPAC asked me a ZFS question which I can't answer
>(except by guessing) and I said I'd ask you in case you had a quick
>answer as you've played with it a bit more.
>
>Mark wrote:
>
>> Can the pool's size be increased by replacing [6 old 320Gb disks]
>> with a new set of 6 HD's say 640GB each, changing one disk at a
>> time and waiting for data to be resilvered before replacing the
>> next disk, then when all 6 disks are resilvered the size will
>> automatically be doubled?
>
>My guess is that the answer would be yes, that should work, but that
>is just a guess!  Is this something you've played with ?
>
>cheers!
>Chris

--
Alec Muffett
http://www.google.com/search?q=alec+muffett


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