Personally I have am using local but wish I had a SAN.

I suspect if they wanted a dedicated server then a virtualized dedicated
server would work.  I did that to a server we had to run for our library for
several years.  I never told the vendor as they never asked but we never had
any issues with that setup and that was using software ported over from NT4
to 2000.  Ours actually ran smoother in the virtual environment than in the
physical but that may have been a result of hardware issues.

I have SCE, DC/NAP/NDS/DHCP, File, Web/Print/FTP/SMTP, AV, and SQL all
running virtual.  The AV is on one machine the rest on another.  I will also
say that the SQL is not a high volume machine and except for running out of
space is happy.

I don't do clusters so will leave that to smarter people than me.

My logic is best machine to do the work but I don't put Printing on the same
machine as File services I try to get machines to do logically what is
similar things on the same VM.  I could have put the AV on my SCE but I am
new to that technology and had the spare license so I split the two.  It
will make changing AV vendors easier at a later point.  Some things just
should be on their own when ever possible, like DC's and File should not
share and File and Web app's should not share if you have the license and
space to keep them separate.  I am a bit old school about that.

I am under orders to decrease my heat/AC and electrical draws as well as the
numbers of Physical machines we support.  Some vendors like ESRI require
access to dedicated hardware that can not be done in a virtual environment
but other than that I have been successful at virtualizing most things
tried.  One thing to keep in mind that you already know is nothing goes on
the host but what you absolutely have to have on the host.  That causes more
issues than any I have had to this point.

Jon

On Mon, Dec 29, 2008 at 9:30 AM, Roger Wright <[email protected]> wrote:

>  Taking a look at the potential implementation of virtualization and have
> several questions:
>
>
>
> 1.        Does/should utilization of a SAN have a direct impact on
> virtualization  decisions?  Is it better to go with local or SAN storage?
>
> 2.       Do vendors who normally require a dedicated server accept a
> virtualized server as equivalent?
>
> 3.       What type of servers (DB, Oracle, F&P, etc.) don't make good
> candidates for virtualization?    I would think that SQL/Oracle would
> probably be least recommended.
>
> 4.       Is clustering still possible with VMs?
>
> 5.       What kind of logic determines the best combination of
> host/guests?  IOW, is it recommended to put all F&P servers together on one
> host, or should it be a combination of F&P, DB, etc.?
>
>
>
> TIA!
>
>
>
>
>
>
>
> Roger Wright
>
> Network Administrator
>
> Evatone, Inc.
>
> 727.572.7076  x388
>
>
>
> [image: ET E-mail Signature Logo]
>
> _____
>
>
>
>
>
>
>
>

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