I suppose I should start by stating that this post's main focus is around VMware's CPU Schedular. The Difference Between CPU usage In A Physical And Virtual World Physical servers typically have a single or multiple CPU's (multiple cores). A hypervisor provides an additional layer between the OS and the physical CPU allowing the use... Continue Reading →
VMware image customization is in progress on VM Reboot Server 2012
During a Proof of concept build for a customer, I have run into a issue where the VMware image Customization is in progress on the start or reboot of a Virtual Machine after deploying from Template. To remove this, you will need to remove the line SysprepDecrypt from the registry. HKLM\System\CurrentControlSet\Control\Session Manager\ Delete SysprepDecrypter.exe... Continue Reading →
Hyper-V Replica Essentials by – Vangel Krstevski
I have just finished reviewing the book Hyper-V Replica Essentials by Vangel Krstevski Hyper-V Replica Essentials is a excellent beginners Step-by-Step guide on how to configure Hyper-V Replica in various deployment scenarios. I would of liked to see more information on Authenticating With a Self-signed certificate as this would have interested me as a... Continue Reading →
Upgrading ESXI 5.1 to 5.5 – The Shell Way
vSphere 5.5 was released on the 22nd of September and I thought it would be a great time to test out the upgrade/update from the command line. Connect to the Shell using your preferred Terminal tool (putty). Before going a head with this I would check that the update has all the required VIB's for... Continue Reading →
Best Practices for Deploying KEMP’s VLM on VMware ESX
I have spent a considerable amount of time working with KEMP Load Balancers recently and would like to share some VMware deployment Best practices . For all those using KEMP Virtual LoadMaster's with VMware, you will need to configure a Load Balancing port group for the relevant vlan "production_LB" or "DMZ_LB" to avoid port flooding. To prevent RARP... Continue Reading →
KEMP LoadMaster in Windows Azure
KEMP's VLM for AZURE Exciting times for KEMP Technologies as they have recently released a new Virtual LoadMaster for Windows Azure. This brings new Load Balancing features to Windows Azure. You can request a copy from KEMP's Website: http://kemptechnologies.com/load-balancer-for-azure The current Version is free and comes with free email support. Windows Azure's Load Balancing features only offers round... Continue Reading →
Configuring VMware Switch for NLB
For all those using Load balancing with VMware, you will need to configure a NLB portgroup to avoid port flooding. To prevent RARP packets being sent every time vMotion or powering on a VM, you will need to configure no notify switch on the required portgroups. If you are using unicast, you will also need... Continue Reading →
Enable VMware Guest Copy and Paste
Just a quick post to show how to enable copy and Past on VMware vSphere Guest. You would need to add the following to the configuration parameters.... isolation.tools.copy.disable false isolation.tools.paste.disable false You can also do this in ESXI Shell: ~ # ls ln /etc/VMware ~ # vi /etc/vmware/config add: vmx.fullpath = "/bin/vmx" isolation.tools.copy.disable="FALSE" isolation.tools.paste.disable="FALSE"... Continue Reading →
Ryan Mangan's IT Blog 