On Fri, 14 Jan 2011, Drew Fisher wrote:

      In above example you specify Slice 0 of disk c3t0d0 being in
      zpool "rpool" yet you specify slice 1 of the same disk being
      part of zpool "tank", is this a typo or intentional, as I'm not
      even sure this is possible.


I think that if you just had zpools named "rpool" and "tank", it certainly
possible.  I don't know if the root pool commonly called "rpool" requires
the whole boot disk or not though.  I didn't think it did.  What I posted
above was intentional to show how different slices could be assigned to the
same pool.

I don't believe it is required for "rpool" to reside on an entire disk. The text installer for example allows rpool
to reside on a slice and that works just fine.

      Under <logical> would it be a requirement to always have at
      least one <zpool> where is_root="true" ?


Are we still supporting UFS root?  If so, then no it's not a requirement. 

We don't support UFS root in our installers today.

If not, then yes.  The clients (AI / GUI installer / etc.) could also add
some logic behind this to ensure a least one zpool has is_root="true"

I agree that the logic to ensure atleast one zpool has
is_root="true" should be in the installers and shouldn't
even be exposed at the schema level.

Alok
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