bhyve: zvols for guest disk - yes or no?

[Patrick M. Hausen]

Hi, all,

we are just starting a project that will run a couple
of Ubuntu guests on top of bhyve instead of ESXi
that we used in the past.

As far as I could find out, more or less all bhyve
manager/wrapper tools use zvols as the backing
store for "raw" guest disk images.

I looked at

	* chyves
	* iohyve
	* vm-bhyve

So far so good. Yet, this blog article has some very
valid (IMHO) points against using them:

http://jrs-s.net/2016/06/16/psa-snapshots-are-better-than-zvols


Another thing I'm pondering is: wouldn't it be better to
run on UFS so you can dedicate as much memory
as possible to VMs?


So I'm a bit puzzled now on what to do. Any opinions,
experiences, war stories to share?

Thanks
Patrick
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