On Tue, Mar 13, 2012 at 11:04 AM, David Mazzaccaro
<david.mazzacc...@hudsonmobility.com> wrote:
> I am starting to investigate moving our aging network infrastructure into
> the virtual world.

  Your questions sound similar to the ones I had a few months ago.
You should prolly review this thread:

http://www.mail-archive.com/ntsysadmin@lyris.sunbelt-software.com/msg106517.html

> I guess the way it would work is that the VMs would reside on the SAN, and
> the 3 hosts would call up the SAN to load each VM utilizing the host’s CPU,
> RAM, NIC, etc.)… right?

  Right.  The storage for each VM lives on the SAN.  The VMs run on
the HP servers.  It's basically just a different way of attaching
disks.

> Being very new to VM, does the above scenario seem to make sense?

  For some value of "sense".

> It is hard for me to imagine all that traffic going between the SAN and the
> host servers w/o creating a huge bottleneck (over gig Ethernet)

  As opposed to what?

> Do people recommend virtualizing every server?

  Varies.  From what I've seen, a common recommendation is to have
some core IP & AD infrastructure (DNS and DC) available on a dedicated
physical box, for a "cold start" scenario.  Otherwise the VM host can
end up trying to talk to DNS or DC to start the VM which holds for
DNS/DC.

> Is 7 TB of storage enough (probably only 3 usable after array config)?

  That depends *entirely* on how much data you're storing.

> I have done a little more reading, and from what I understand w/ 3 Windows
> Enterprise licenses, I would be limiting myself to 12 VMs.

  Yes, and the host would be restricted to providing VM hosting
*only*.  You're not permitted to do anything else on the host OS.

> However, if I went w/ 3 Windows Datacenter licenses, for a small increase in
> price - I would get unlimited VMs?

  Yes.  Be aware that you need a DC license *per physical processor*
(chip package), and it's a minimum of two per physical host.

-- Ben

~ Finally, powerful endpoint security that ISN'T a resource hog! ~
~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/>  ~

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