Category : Virtualisation

Virtual Machine Memory Overhead

Windows virtual machines require more memory with each passing release and software demands on memory are becoming larger all the time.  In a vitual environment it is quite simple to increase the amount of virtual memory granted to a virtual machine, especially with features such as hot add.  The ability to dynamically increase the amount

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VMWorld 2010 CA & 3tera party video

Here is a video of some of the entertainment at the CA/3tera party on the Tuesday night during VMWorld. The entertainer is balancing on a ladder, spinning a tray on his head, whilst his head is on fire. he is also juggling a fire club, an axe and a large knife. Oh and he is

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Understanding virtual machine memory

Memory in a virtualised environment is split up in three memory types. Virtual Memory – Allocates memory through a syscall to the operating system.  This runs at the application level in the same way on virtual machines as in physical machines Physical Memory – Runs at the OS level.  In simplistic terms it uses an

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Virtual Machine configuration and maximums

Virtual machines are made up of the following files. vmname.vmx – Config file vmname.vmdk – Describes charateristics vmname-flat.vmdk – (hidden by default) Contains the data vmname.nvram – VM BIOS vmname.log – log file vmware#.log – VMware log file vmname.vswp – Virtual machine swap file on the ESX(i) host vmname.vmsd – snapshot descriptor file Limits per

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VMware NIC Trunking Design

Having read various books, articles, white papers and best practice guides I have found it difficult to find consistently good advice on vNetwork and physical switch teaming design so I thought I would write my own based on what I have tested and configured myself. To begin with I must say I am no networking

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Upgrade an ESXi 4.0 Host to 4.1 with the vihostupdate Utility

1. Check for a scratch partition in the Software Advanced Settings in the Configuration tab of the vSphere Client. If one doesn’t exist configure one and reboot the host before proceeding with the upgrade. (See here for more info) 2. Download and install the VMware vSphere command line interface. (vSphere CLI) 3. Download the upgrade-from-ESXi4.0-to-4.1.0-0.0.build#-release.zip

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Powerchute Network Shutdown – ESXi/vMA install

Powerchute Network Shutdown version 3.0.0 software for ESXi is now free when you purchase a network shutdown management card from the APC website. 1. Download VMA (vSphere Management Assistant) 1. Highlight VM Host> File> Deploy OVF Template> Browse to VMA Folder and Select the OVF> Next> Accept Licence> Next> Keep Default Disk Configuration> Next> Finish

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ESX upgrade guide using putty

01:On a Windows box, download the patch bundle directly from VMware. This will be .zip file. 02:On a Windows box with the vSphere client installed, download and install FastSCP. Create a folder called updates in the var file and copy the upgrade files into the Updates on the ESX host. 03::Obtain local console access, or

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