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Posts tagged Hyper-V
VMWare ESX: Hyper-V and memory overcommit? forget it!
Dec 18th
Hyper-V Manager error when trying to start my 4th virtual machine:
- An error occurred while attempting to change the state of virtual machine. Unable to allocate MB of RAM. Insufficient system resources exist to complete the requested service. etc…
Before I reinstall my test Dell PowerEdge 2900 Quad core server I wanted to share this with you. Hyper-V does not support memory overcommitment and I don’t like that. The virtual host has 8GB or RAM and I want to run more VMs than just 6 of those; the OS uses almost 1GB and less than 7GB is available for VMs.
Some weeks ago I read about memory overcommitment feature which is available for VMWare’s ESX/ESXi servers.
What is Memory Overcommitment?
Memory overcommitment is not a feature in itself, but a collection of technologies out of which “transparent page sharing” is the most interesting in my opinion. The usefulness of transparent page sharing will spring to mind immediately if you consider VDI environments. There, host machines typically run large numbers of identical client operating systems with the same applications installed on them. Since all the clients/guests run the same application set, most of the code pages they need to keep in memory are identical. Each guest keeps separate copies of all system and application EXEs and DLLs in memory – what a waste!
Now consider the following: in memory program code is organized in units of pages. If you had a component that identified all those identical pages in each guest’s virtual memory and map them to one set of pages in the host’s physical memory, you could reduce the code memory footprint of n virtual machines to that of one single virtual machine. And that is in a nutshell what VMware’s “transparent page sharing” does.
I only want to run different VMs of Windows Server 2003 or Windows Server 2008 and install additional components to test them with each other. With Hyper-V server I can only commit the physical memory available and additional VMs.
Related links:
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Loading ...Hyper-V from cmd
Aug 15th
Hyper-V, a key feature of Windows Server 2008, has now released to manufacturing (RTM) and is available for deployment into production environments. With help of ServerManagerCMD.exe I will install the Hyer-V role.
What is ServerManagerCMD.exe?
Server Manager in Windows Server 2008 provides a single source for managing a server’s identity and system information, displaying server status, identifying problems with server role configuration, and managing all roles installed on the server.
ServerManagerCMD is powerful tool and within one command line you can install the Hyper-V role. Make sure you installed the Windows 2008 RTM version and updated your system with KB950050.
With ServerManagerCMD.exe you will be able to install all those roles:
Active Directory Certificate Services
Active Directory Domain Services
Active Directory Federation Services
Active Directory Lightweight Directory Services
Active Directory Rights Management Services
Application Server
Availability and Scalability
DHCP Server
DNS Server
Fax Server
File Services
Hyper-V
Network Policy and Access Services
Print Services
Streaming Media Services
Terminal Services
Troubleshooting
UDDI Services
Web Server
Windows Deployment Services
Finally we get a single command line tool for this administrative task. I hate having different text files and run the cmd batch scripts.
Related links:
(No Ratings Yet) Loading ...Remote management console Hyper-V RC0 role Vista SP1
Apr 7th
KB949758 allows you to install the remote management console of a Windows Server 2008 computer running the Hyper-V RC0 role. Download the update here for x86 or x64 if you are running Windows Vista SP1. I already hit couple of times issues when managing my virtual machines remotely with RDP console session.
I am not able to control mouse session when using rdp console session Hyper-V Manager Virtual Machine Connections and only keyboard is working. “Mouse not captured in Remote Desktop Session”.
The update for my x86 machine only requires 1.52MB of space and 5 minutes of installing.
After the update has been installed go to Administrative Tools and start the Hyper-V Manager mmc console for your Windows Server 2008 Hyper-V RC0 host servers.
(No Ratings Yet) Loading ...Windows Server 2008 has been Released to Manufacturing (RTM)
Feb 5th
This morning I received the following thanks email from Microsoft Connect team. I am downloading the RTM version and Iwill refresh my lab machines with the latest release of Windows Server 2008. One thing I am really excited to test is the clustered Hyver-V. Robert Larson did post howto and I will try to get this thing up and running soon.
- Thanks to you, our dedicated beta participants, this is the most tested version of Windows Server ever released!!
Windows Server 2008 has an array of new features and technologies that are too numerous to list completely, but some of the highlights are:
• Internet Information Services (IIS) 7.0 – next gen web and app platform
• Server Core – key roles, low footprint, no GUI
• Terminal Services Gateway – access your apps without a RAS client
• Network Access Protection – keep your network safe from un-healthy clients
• PowerShell – powerful scripting tools for admins
• Failover Clustering – improved cluster management, security, and stability
• Next Generation Net Stack – fast and reliable
• Server Manager – setup & manage server roles and features in one place
• Read-Only Domain Controller – safe branch office DCs
• Hyper-V Beta – server virtualization. Hyper-V RTM in 180 days
(No Ratings Yet) Loading ...New Screencasts of Hyper-V and VirtualPC2007
Jan 29th
Check out my screencasts here. No tutorials or additional information but enough to get a feeling and maybe check out the features yourself.
- Hyper-V Role Installation
Hyper-V New Virtual Machine
Hyper-V Virtual Network Switch VLAN
Hyper-V Virtual Machine Connection and Copy Paste fun with Windows Server serial number
VirtualPC 2007 Installation
VirtualPC 2007 CactiEZ.v0.3 Installation
(No Ratings Yet) Loading ...Hyper-V error when installing integration components id 61658
Jan 23rd
If you installed wrong version of Hyper-V RC1 you may get the error below. I have experienced this with the binaries which I have download from MSDN subscriber website.
After you insert the integration components additions of Hyper-V the installations stops with this error.
An error has occurred: One of the update processes returned error code 61658.
The error has to do with the certificates being used by the setup procedure. The certificates have expired November 2007 and you are still using the Hyper-V CTP version, Hyper-V RC1 has no more MSU installation after the server has been installed. For more info go to this link at MSDN blogs.
Go to this link and download the correct version named 6001.17119.071210-1916_amd64fre_Server_en-us-KR1SXFRE_EN_DVD.iso.
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