Solved

Hyper-V On a two-socket quad-core server

Posted on 2009-05-17
6
848 Views
Last Modified: 2013-11-06
I have a two-socket quad-core server (PE2950), the host operating system sees and can use all 8 Cores, yet i can only assign up to 4 Logical Processors per VM. Why? Would installing W2008 R2 Hyper-V help me?

Thank you.
0
Comment
Question by:andrisv24
  • 3
  • 3
6 Comments
 

Author Comment

by:andrisv24
ID: 24407660
Both the server and the guest OS are W2008 Enterprise Ed. x64 1TB Raid 5 and 16 GB of RAM
0
 
LVL 7

Accepted Solution

by:
mikeewalton earned 500 total points
ID: 24407766
Hyper V does have limitations for guest OS's, take a look here:

http://msdn.microsoft.com/en-us/library/cc768529.aspx

Operating system      Virtual processor limit
Windows Server 2008 64-bit
4
Windows Server 2003 32-bit
2
Windows Server 2008 32-bit
4
Windows Server 2003 64-bit
2
Windows Vista SP1 32-bit
2
Windows XP SP3 32-bit
2

0
 

Author Comment

by:andrisv24
ID: 24407784
Oh, thank you. I was not aware of this. Is there any way around that?
0
Simplifying Server Workload Migrations

This use case outlines the migration challenges that organizations face and how the Acronis AnyData Engine supports physical-to-physical (P2P), physical-to-virtual (P2V), virtual to physical (V2P), and cross-virtual (V2V) migration scenarios to address these challenges.

 
LVL 7

Expert Comment

by:mikeewalton
ID: 24407852
Take a look here: http://virtualizationreview.com/Articles/2009/01/01/Microsoft-Citrix-and-VMware-in-Brewing-Battle.aspx?Page=2 

So no not really, I have not heard if Hyper V R2 is going to change this at all or not.


Also keep in mind not to rob your host, I'm not sure how many VM's you are running, but keep in mind a one to one ratio.

For example if you were running 3 VM's, you would want to only devote 2 cores to each vm, and leave 2 for the host.
0
 

Author Comment

by:andrisv24
ID: 24407870
The problem is that currently i'm running only one VM on that host and i want it to get the most resources possible.
It's a terminal server and has all the users' individual settings so reinstalling that on the host without virtualization would be a nightmare. or would it?
0
 
LVL 7

Expert Comment

by:mikeewalton
ID: 24407922
Well unless you are supporting a whole lot of users on that term server, I really don't see the point of doing better then 4 cores for the host and 4 for the vm.

If you wanted to restore it back to the host you could use an imaging product like Back Up Exec System recovery.

You could also add another virtual terminal server, and use term server brokering.

You are probably using 2003, but here is a good article on 2008 to stress the idea.

http://www.techotopia.com/index.php/Deploying_a_Windows_Server_2008_Terminal_Server_Farm_using_TS_Session_Broker
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

The purpose of this article is to help people install Ubuntu 10.04 on Windows 2008 R2 Hyper-V. Some of the issues many people face in installing Ubuntu 10.0.4 on Hyper-V are the following: 1.      No Network Connection 2.      No Mouse functionality wh…
Few best practices specific to Network Configurations to be considered while deploying a Hyper-V infrastructure. It may not be the full list, but this could be a base line. Dedicated Network: Always consider dedicated network/VLAN for Hyper-V…
Microsoft Active Directory, the widely used IT infrastructure, is known for its high risk of credential theft. The best way to test your Active Directory’s vulnerabilities to pass-the-ticket, pass-the-hash, privilege escalation, and malware attacks …
With Secure Portal Encryption, the recipient is sent a link to their email address directing them to the email laundry delivery page. From there, the recipient will be required to enter a user name and password to enter the page. Once the recipient …

773 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question