FreeBSD-10.3 root ZFS redux

Graham Allan allan at
Wed May 11 18:53:34 UTC 2016

On 5/11/2016 1:13 PM, James B. Byrne wrote:
> I managed to get this reversed in my head as I composed.  The question
> is what happens when a nominally 3TB HDD is put in that has fewer
> accessible sectors than a similar 3TB drive already present?

My understanding is that it would just be rejected (I see some older 
solaris examples mention a "device too small" error).

Best practice is probably to create a gpt partition of some standard 
size on the drives before adding that to the pool, to give a little 
adjustment room, though I confess I have made all my pools to date using 
the raw drives (other than a geom label); and simply try to replace 
drives with the same model.

Graham Allan
School of Physics and Astronomy - University of Minnesota

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