ASP Developer Network - Brought to you by Steve Radich and BitShop, Inc. - http://www.bitshop.com

ASPDeveloper

ASPDeveloper.Net / VirtualServerFAQ.COM

Make sure you go to our home page for:

* Virtual Server 2005 FAQ
* ASP.Net 2.0 Information
* ASP.Net 2.0 Streaming Tutorials
* ASP.Net 2.0 HTML based Tutorials

Made possible by Business Internet Technology Shop (BitShop)

Virtual Server 2005

Recent Virtual Server 2005 posts

* Hardware for Windows Server 2008 R2 Hyper-V
* Hyper-v server and patching
* Emulated vs synthetic nic
* MS Virtual Server 2005 R2 service does not start after reboot
* Permission on Hyper-V
* VS2005 R2 Enterprise x64 SP1 with hanging WS03 x86 guest that cannot be terminated
* Hyper-V - shutdown VM - status shows "merge in Progress..."
* Integrated Services not installing or running
* make money [0/1] - Post Description (1/1)
* Adding Raid 6 Array
* Adding Raid 6 Array for More disk Space
* Windows 2008 R2 Guest on VS 2005R2 SP1
* Want to run WHS inside Win7 ProVM -- Will it work?
* Networking issues with Hyper-V
* Upgrade from Virtual Server 2005 to Virtual Server 2005 R2
* Performance with to vhd ?
* VSS Writer issue (2005 R2)
* VMM hangs on Integration Services installation
* Hyper-V Server 2008 R2 Configuration Guide
* Hyper-V Server 2008 R2 (RC) upgrade to Hyper-V Server 2008 R2?

Add Solution

DisableTaskOffload in my VM and HOST

Source: microsoft.public.virtualserver
Sent: 11/18/2009
From: SirBrand
Message:

Hi to all and sorry for my English please.

I have a Virtual Server 2005 R2 ENT host, running on W2k3 R2 ENT SP2.
The host emulate 3 virtual machine: ISA 2006, AD, EXCHANGE 2003

I notice some performance issues in my connectivity, the performance are
very poor.

I read this
http://www.markwilson.co.uk/blog/2008/03/problems-with-hyper-v-isa-server-2006-and-tcp-offloading.htm, but I donâ€™t understand something about this:

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters]
"EnableTCPA"=dword:00000000
"EnableRSS"=dword:00000000
"DisableTaskOffload"=dword:00000001

Is it a best practice for may case:
- Update these value on ISA (VM GUEST)
- Update these value on PHISICAL HOST
- Update these value on ISA (VM GUEST) and AD (VM GUEST) and
EXCHANGE (VM GUEST)
- Update these value on ISA (VM GUEST) and AD (VM GUEST) and
EXCHANGE (VM GUEST) and PHISICAL HOST

Thanks!

Post Reply | This is Spam! | Mark as Spam

Related Messages

Re: DisableTaskOffload in my VM and HOST

Sent: 11/18/2009
From: SirBrand
Message:

"Robert Comer" wrote:

Thanks for your reply but I found this post
http://xpworld.spaces.live.com/blog/cns!3110BDF94643CB31!354.entry were
authors said:
â€œI was handed the solution: Disable TCP Offloading in the VM in stead of on
the hostâ€

Can you confirm for â€œUpdate these value on PHISICAL HOSTâ€ only please?

Thank you enough

Show quoted text

> > - Update these value on PHISICAL HOST
>
> That's the one.
>
> --
> Bob Comer

Re: DisableTaskOffload in my VM and HOST

Sent: 11/18/2009
From: Robert Comer <(email address - cut out)>
Message:

> - Update these value on PHISICAL HOST

That's the one.

--
Bob Comer

SirBrand wrote:

Show quoted text

> Hi to all and sorry for my English please.
>
> I have a Virtual Server 2005 R2 ENT host, running on W2k3 R2 ENT SP2.
> The host emulate 3 virtual machine: ISA 2006, AD, EXCHANGE 2003
>
> I notice some performance issues in my connectivity, the performance are
> very poor.
>
> I read this
> http://www.markwilson.co.uk/blog/2008/03/problems-with-hyper-v-isa-server-2006-and-tcp-offloading.htm, but I donâ€™t understand something about this:
>
> [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters]
> "EnableTCPA"=dword:00000000
> "EnableRSS"=dword:00000000
> "DisableTaskOffload"=dword:00000001
>
> Is it a best practice for may case:
> - Update these value on ISA (VM GUEST)
> - Update these value on PHISICAL HOST
> - Update these value on ISA (VM GUEST) and AD (VM GUEST) and
> EXCHANGE (VM GUEST)
> - Update these value on ISA (VM GUEST) and AD (VM GUEST) and
> EXCHANGE (VM GUEST) and PHISICAL HOST
>
> Thanks!

Re: DisableTaskOffload in my VM and HOST

Sent: 11/18/2009
From: Robert Comer <(email address - cut out)>
Message:

>Can you confirm for “Update these value on PHISICAL HOST” only please?

No, I cannot, but hopefully someone else will answer.

--
Bob Comer

On Wed, 18 Nov 2009 04:55:02 -0800, SirBrand
<(email address - cut out)> wrote:

Show quoted text

>"Robert Comer" wrote:
>
>> > - Update these value on PHISICAL HOST
>>
>> That's the one.
>>
>> --
>> Bob Comer
>
>Thanks for your reply but I found this post
>http://xpworld.spaces.live.com/blog/cns!3110BDF94643CB31!354.entry were
>authors said:
>“I was handed the solution: Disable TCP Offloading in the VM in stead of on
>the host”
>
>Can you confirm for “Update these value on PHISICAL HOST” only please?
>
>Thank you enough

Post Reply | This is Spam! | Mark as Spam

Other groups

Virtual PC (Mac)(3592)	Virtual PC(12844)	Virtual PC (French)(496)
Virtual Server 2005(6245)

Our Sponsors

Virtual Server 2005 Info Here!
http://www.aspdeveloper.net

Wiki

Blogs

Articles

Image galleries

File galleries

Forums

Maps

Directories

ASP Developer Network (since 1996) - Brought to you by Steve Radich and BitShop, Inc. - http://www.bitshop.com
Copyright © 1997-2005 by BitShop, Inc. All Rights Reserved.
No content may be reproduced in any form without written permission from BitShop, Inc.
We will be honored to assist with reproduction rights on our material if you contact us.
We also can provide print articles for your magazine, private training seminars at your site, and conference presentations.
Thank you for visiting. Please bookmark our site if you found it useful!
If you wish to make a donation it will help further the development of these free resources: