Esxtop Guide

On July 27, 2011, in Command Line Utilities, ESX, ESXi, VCAP, Virtualisation, by Simon Greaves

Tweet Someone once likened esxtop to windows task manager on steroids. When you have a look at the monitoring options available you can see why someone would think that. Esxtop is based on the ‘nix top system tool, used to monitor running applications, services and system processes. It is an interactive task manager that can be [...]

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vMotion CPU Compatibility

On March 10, 2011, in ESX, ESXi, vCenter Server, Virtualisation, by Simon Greaves

Tweet vMotion has quite a few requirements that need to be in place before it will work correctly. Here is a list of the key requirements for vMotion to work. Each host must be correctly licensed Each host must meet shared storage requirements Each host must meet the networking requirements Each compatible CPU must be [...]

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Virtual Machine Memory Overhead

On February 19, 2011, in vCenter Server, Virtual Machines, Virtualisation, by Simon Greaves

Tweet 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 [...]

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VMFS Datastore Free Space Calculations

On February 14, 2011, in ESX, ESXi, vCenter Server, Virtual Machines, Virtualisation, by Simon Greaves

Tweet As technology progresses, storage requirements grow.  It seems to be a never ending pattern.  I remember only a few years ago the maximum configurable LUN size of 2TB seemed huge.  Now it is common to have many LUN carvings making up tens of Terabytes of SAN storage. The downside to all this extra storage [...]

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VMware NIC Trunking Design

On August 27, 2010, in ESX, ESXi, Switches, vCenter Server, Virtualisation, by Simon Greaves

Tweet 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 [...]

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ESX upgrade guide using putty

On August 25, 2010, in ESX, Virtualisation, by Simon Greaves

Tweet 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, [...]

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