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Simon Bodecott

Author's posts

When RamDisks Get Full

I thought it might be worth sharing the outcome of some troubleshooting of some ESXi 5 servers running off SD cards, in case anyone else encounters similar issues. When vSphere 4 proved capable of booting ESXi from a 4Gb SD card or USB stick it became a tempting option for saving money on storage with …

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Virtualisation 101 – Physical to Virtual (P2V) Migrations

Following on from last month’s article on deploying brand new virtual machines Simon this month moves on to looking at how to migrate existing Physical or Virtual machines running on earlier or competing virtualisation platforms to vSphere.

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Virtualisation 101 – Creating VMs Part 1

To continue the introduction to Virtualisation by Simon we now move on to Creating virtual machines.

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Virtualisation 101 – VMotion

What Is It? VMotion is arguably VMware’s “killer app” – the feature that gave VMware’s hypervisor product a USP edge over its competition.    It enables an ESX host to transfer a running virtual machine over to a different ESX host without incurring downtime.   When a VMware administrator initiates a VMotion migration the memory state of …

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Virtualisation 101 – VMware Update Manager (VUM)

What Is It? Update Manager is VMware’s patching product, and is used for updating ESX/ESXi hosts, virtual appliances and guest machines.  It is a companion product to vCenter and installed via the vCenter Installer.  In smaller deployments VUM would be installed on the vCenter server, but in larger environments could be run as a dedicated …

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Virtualisation 102 – SRM

This article builds on the previous 101 overview of VMware’s Site Recovery Manager and covers the deployment process at a high level.  For detailed instructions on how to roll out SRM please refer to the documentation linked to in the previous article. Preparation Phase DR projects are notorious for soaking up engineer resource, requiring multiple …

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Virtualisation 101 – SRM

This is the first in a short series of high level articles intended to explain how some of VMware’s products and features work, to help anyone that needs to get up to speed quickly on a particular topic. What Is It? Site Recovery Manager is a VMware product that enables protection of a virtual infrastructure …

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