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Supported OS guests

Source: microsoft.public.virtualserver
Sent: 11/10/2008
From: Jmnts
Message:

Hi everyone,

After reading the
http://support.microsoft.com/kb/954958/en-us and
http://www.microsoft.com/windowsserver2008/en/us/hyperv-supported-guest-os.aspx e noitice that Windows 2003 can ony run on 2 virtual CPUs?

Why not 4 CPUs? Will I have performance issues with this? The funny thing is
that I never noitice that in the lab environment, and I actually can define 4
virtual CPUs for windows 2003!!! Why MS is saying that isn't possible?

What SPM stands for?

Thank you all.

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Related Messages

Re: Supported OS guests

Sent: 11/10/2008
From: "Steve Jain [MVP]" <(email address - cut out)>
Message:

On Mon, 10 Nov 2008 04:58:08 -0800, Jmnts
<(email address - cut out)> wrote:

It is possible, they are saying it's not supported. You can assign
4CPUs if you like, but you will not get technical support in that
configuration.
They have not fully tested 4 CPU configurations, so it's not
supported. There are no hard-coded limits, so theoretically you could
run 8 or 16 CPUs in a VM also, if you have the hardware, but it's
still an unsupported configuration.

--
Cheers,
Steve Jain, Virtual Machine MVP
http://vpc.essjae.com/

Show quoted text

>Hi everyone,
>
>After reading the
>http://support.microsoft.com/kb/954958/en-us and
>http://www.microsoft.com/windowsserver2008/en/us/hyperv-supported-guest-os.aspx e noitice that Windows 2003 can ony run on 2 virtual CPUs?
>
>Why not 4 CPUs? Will I have performance issues with this? The funny thing is
>that I never noitice that in the lab environment, and I actually can define 4
>virtual CPUs for windows 2003!!! Why MS is saying that isn't possible?
>
>What SPM stands for?
>
>Thank you all.

Re: Supported OS guests

Sent: 11/10/2008
From: Jmnts
Message:

Ok, thank you for the response, but this is really stupid... Not to say
worse... so if MS decides to not give support for 2003 with 4 virtual CPUs
they have that right because they didn't have time to to test with 4 virtual
CPUs. funny thing because looking at the competitors in Virtual world we
don't see think like this one...

"Steve Jain [MVP]" wrote:

Show quoted text

> On Mon, 10 Nov 2008 04:58:08 -0800, Jmnts
> <(email address - cut out)> wrote:
>
> >Hi everyone,
> >
> >After reading the
> >http://support.microsoft.com/kb/954958/en-us and
> >http://www.microsoft.com/windowsserver2008/en/us/hyperv-supported-guest-os.aspx e noitice that Windows 2003 can ony run on 2 virtual CPUs?
> >
> >Why not 4 CPUs? Will I have performance issues with this? The funny thing is
> >that I never noitice that in the lab environment, and I actually can define 4
> >virtual CPUs for windows 2003!!! Why MS is saying that isn't possible?
> >
> >What SPM stands for?
> >
> >Thank you all.
>
> It is possible, they are saying it's not supported. You can assign
> 4CPUs if you like, but you will not get technical support in that
> configuration.
> They have not fully tested 4 CPU configurations, so it's not
> supported. There are no hard-coded limits, so theoretically you could
> run 8 or 16 CPUs in a VM also, if you have the hardware, but it's
> still an unsupported configuration.
>
> --
> Cheers,
> Steve Jain, Virtual Machine MVP
> http://vpc.essjae.com/
>

Re: Supported OS guests

Sent: 11/11/2008
From: Jmnts
Message:

ThatÂ´s your opinion. But think again, when your client has to decide between
HV and other available Virtual Server solutions in the market that don't have
these limitations. I know that will work with 4 virtual cores, I already
tested, but when the client asks you why? An when the is aware that MS may
not (although I think that MS would never refuse support because of this)
provide support, this may impact in the client decision.

As for the question: what will the client will run that requires 4 virtual
CPUs, the answer is everything, and this will be a platform with lots of
physical servers that will run all Microsoft and Non-Microsoft technologies.

"Bill Grant" wrote:

Show quoted text

> No, it is not stupid. What Microsoft is saying is that we have not tested
> this configuration so we cannot offer full support for it, but it will
> probably work.
>
> What are you running on Server 2003 in a vm that you think will require
> more than 2 cores? Is it showing any sign of being processor bound?
>
> "Jmnts" <(email address - cut out)> wrote in message
> news:(email address - cut out)...
> > Ok, thank you for the response, but this is really stupid... Not to say
> > worse... so if MS decides to not give support for 2003 with 4 virtual CPUs
> > they have that right because they didn't have time to to test with 4
> > virtual
> > CPUs. funny thing because looking at the competitors in Virtual world we
> > don't see think like this one...
> >
> >
> > "Steve Jain [MVP]" wrote:
> >
> >> On Mon, 10 Nov 2008 04:58:08 -0800, Jmnts
> >> <(email address - cut out)> wrote:
> >>
> >> >Hi everyone,
> >> >
> >> >After reading the
> >> >http://support.microsoft.com/kb/954958/en-us and
> >> >http://www.microsoft.com/windowsserver2008/en/us/hyperv-supported-guest-os.aspx
> >> >e noitice that Windows 2003 can ony run on 2 virtual CPUs?
> >> >
> >> >Why not 4 CPUs? Will I have performance issues with this? The funny
> >> >thing is
> >> >that I never noitice that in the lab environment, and I actually can
> >> >define 4
> >> >virtual CPUs for windows 2003!!! Why MS is saying that isn't possible?
> >> >
> >> >What SPM stands for?
> >> >
> >> >Thank you all.
> >>
> >> It is possible, they are saying it's not supported. You can assign
> >> 4CPUs if you like, but you will not get technical support in that
> >> configuration.
> >> They have not fully tested 4 CPU configurations, so it's not
> >> supported. There are no hard-coded limits, so theoretically you could
> >> run 8 or 16 CPUs in a VM also, if you have the hardware, but it's
> >> still an unsupported configuration.
> >>
> >> --
> >> Cheers,
> >> Steve Jain, Virtual Machine MVP
> >> http://vpc.essjae.com/
> >>
>

Re: Supported OS guests

Sent: 11/11/2008
From: "Steve Jain [MVP]" <(email address - cut out)>
Message:

On Tue, 11 Nov 2008 03:14:01 -0800, Jmnts
<(email address - cut out)> wrote:

And, this is your opinion.

Then you are free to use other vendors software! What also might
impact them is the cost of the hypervisor also. So?

Everything requires 4 CPUs? If the work is so processor intensive
then why even bother with virtualization?

--
Cheers,
Steve Jain, Virtual Machine MVP
http://vpc.essjae.com/

Show quoted text

>That´s your opinion.
> But think again, when your client has to decide between
>HV and other available Virtual Server solutions in the market that don't have
>these limitations. I know that will work with 4 virtual cores, I already
>tested, but when the client asks you why? An when the is aware that MS may
>not (although I think that MS would never refuse support because of this)
>provide support, this may impact in the client decision.
>
>As for the question: what will the client will run that requires 4 virtual
>CPUs, the answer is everything, and this will be a platform with lots of
>physical servers that will run all Microsoft and Non-Microsoft technologies.

Re: Supported OS guests

Sent: 11/11/2008
From: "Bill Grant" <not.available@online>
Message:

No, it is not stupid. What Microsoft is saying is that we have not tested
this configuration so we cannot offer full support for it, but it will
probably work.

What are you running on Server 2003 in a vm that you think will require
more than 2 cores? Is it showing any sign of being processor bound?

"Jmnts" <(email address - cut out)> wrote in message
news:(email address - cut out)...

Show quoted text

> Ok, thank you for the response, but this is really stupid... Not to say
> worse... so if MS decides to not give support for 2003 with 4 virtual CPUs
> they have that right because they didn't have time to to test with 4
> virtual
> CPUs. funny thing because looking at the competitors in Virtual world we
> don't see think like this one...
>
>
> "Steve Jain [MVP]" wrote:
>
>> On Mon, 10 Nov 2008 04:58:08 -0800, Jmnts
>> <(email address - cut out)> wrote:
>>
>> >Hi everyone,
>> >
>> >After reading the
>> >http://support.microsoft.com/kb/954958/en-us and
>> >http://www.microsoft.com/windowsserver2008/en/us/hyperv-supported-guest-os.aspx
>> >e noitice that Windows 2003 can ony run on 2 virtual CPUs?
>> >
>> >Why not 4 CPUs? Will I have performance issues with this? The funny
>> >thing is
>> >that I never noitice that in the lab environment, and I actually can
>> >define 4
>> >virtual CPUs for windows 2003!!! Why MS is saying that isn't possible?
>> >
>> >What SPM stands for?
>> >
>> >Thank you all.
>>
>> It is possible, they are saying it's not supported. You can assign
>> 4CPUs if you like, but you will not get technical support in that
>> configuration.
>> They have not fully tested 4 CPU configurations, so it's not
>> supported. There are no hard-coded limits, so theoretically you could
>> run 8 or 16 CPUs in a VM also, if you have the hardware, but it's
>> still an unsupported configuration.
>>
>> --
>> Cheers,
>> Steve Jain, Virtual Machine MVP
>> http://vpc.essjae.com/
>>

Post Reply | This is Spam! | Mark as Spam

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