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Virtual Server 2005

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VS 2005 R2 / Dual Core System / Exchange 2000

Source: microsoft.public.virtualserver
Sent: 12/28/2005
From: (email address - cut out)
Message:

I've got a few questions, hopefully all the answers are nice and
simple:

1) If I have a dual proc, dual core, hyperthreaded system, windows will
in theory will show 8 procs. Since this is only 2 physical processors,
Virtual Server 2005 R2 Standard edition should suffice, correct?

2) If #1 is correct, in my logic I could "safely" add 7 virtual
machines, allowing one to each have their own virtual processor leaving
1 for the host OS to do its thing... will virtual server manage /
assign all of those virtual procs optimally such? I want to make sure
that all of these puppies will get used ... or should I disable
hyperthreading?

3) Will exchange 2000 run on Windows 2000 virtualized? I know it isn't
supported, but will it work in a lab environment for functionality
sake?

4) If I plan on having 7 virtual machines on a single phyiscal box
(with 8GB of RAM ... in theory 1GB to each VM and 1GB for the host),
and these machines are being used for functional testing, not
performance, should I be concerned with using RAID-1 on 10k SCSI? Do I
really NEED RAID-10?

Thanks for your time and assistance,
Howie

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Related Messages

RE: VS 2005 R2 / Dual Core System / Exchange 2000

Sent: 12/30/2005
From: David Cornes
Message:

My experiences are based on VS 2005 R1 (haven't got a Select copy of R2
yet!), so someone else may want to caveat my comments with more up-to-date
info, but:

You should be okay running 7 "lightly loaded" test virtual machines on that
spec of server, although in my experience disabling Hyperthreading is
preferable as Virtual Server will do it's own thread distribution across the
CPUs anyway. I find that the amount of RAM assigned to a VM is more important
as this reduces paging within the guest. Vitally though with 7 separate
guests OSes, plus the host, you really need to pay a lot of attention to the
disk subsystem, as this will have the biggest impact on performance. Put
simply, the more disks, the fastest RAID config, in multiple arrays if
possible, the better!

"(email address - cut out)" wrote:

Show quoted text

> I've got a few questions, hopefully all the answers are nice and
> simple:
>
> 1) If I have a dual proc, dual core, hyperthreaded system, windows will
> in theory will show 8 procs. Since this is only 2 physical processors,
> Virtual Server 2005 R2 Standard edition should suffice, correct?
>
> 2) If #1 is correct, in my logic I could "safely" add 7 virtual
> machines, allowing one to each have their own virtual processor leaving
> 1 for the host OS to do its thing... will virtual server manage /
> assign all of those virtual procs optimally such? I want to make sure
> that all of these puppies will get used ... or should I disable
> hyperthreading?
>
> 3) Will exchange 2000 run on Windows 2000 virtualized? I know it isn't
> supported, but will it work in a lab environment for functionality
> sake?
>
> 4) If I plan on having 7 virtual machines on a single phyiscal box
> (with 8GB of RAM ... in theory 1GB to each VM and 1GB for the host),
> and these machines are being used for functional testing, not
> performance, should I be concerned with using RAID-1 on 10k SCSI? Do I
> really NEED RAID-10?
>
> Thanks for your time and assistance,
> Howie
>
>

Re: VS 2005 R2 / Dual Core System / Exchange 2000

Sent: 12/30/2005
From: (email address - cut out)
Message:

David,

Thanks for your reply. These systems will be lightly loaded and
hopefully the ram allocated will keep all paging to a minimum... the
disks will be my bottleneck, hopefully the 10k scsi's will suffice.
worst case we can do a rip and replace.

have a safe / happy new year.

Howie

Re: VS 2005 R2 / Dual Core System / Exchange 2000

Sent: 01/03/2006
From: David Cornes
Message:

Without even "rip and replace", if your server has free disk slots then you
can always add storage capacity later and simply move the .vhd files over
(whilst the virtual machines are shutdown of course).

"(email address - cut out)" wrote:

Show quoted text

> David,
>
> Thanks for your reply. These systems will be lightly loaded and
> hopefully the ram allocated will keep all paging to a minimum... the
> disks will be my bottleneck, hopefully the 10k scsi's will suffice.
> worst case we can do a rip and replace.
>
> have a safe / happy new year.
>
> Howie
>
>

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