Virtualization

Virtualization

The old data application model uses a client application on the users desktop to run the various files. In a virtualized model, all applications are stored on a central server, such that when a user clicks to open a file on their desktops, the data file is virtually wrapped by the application from the central server and loaded to the desktop for that instance of working.

There are three streams of virtualization:

1. Server Virtualization
2. Desktop Virtualization
3. Application Virtualization

Server Virtualization

Previously, user processing power was distributed by varying amounts to the desktop. The virtualization model retains all processing power centrally, thus optimzing its use.

Server virtualization [hardware virtualization] enables multiple operating systems to run on a single physical machine as virtual machines [VMs].

The virtual approach is not aimed at saving money on software or hardware - it's about simplifying installation and management.

The key beneftis of virtualization include:

1. Consolidate workloads of underutilized server machines onto a smaller number of fully utilized machines.
2. Fewer physical machines - reduced costs through lower hardware, energy, and management overhead,
3. More dynamic IT infrastructure

Video - Server Virtualization In Brief

A quick tour to explain server virtualization [2:34]

The Big Deal in Virtualization

The presentation of VMware - the leader in virtualization explains why virtualization IS such a big deal. [4:46]

Virtualization With Sun Systems

How Sun Microsystems' technologies let you virtualize your datacenters. [2:37]

For a fuller understanding of running a virtual server environment.

All You Need For Virtualization

"Virtually All You Need", is a replay of a recent SCIENTIFIC COMPUTING's educational Webcast series, discussing attaining real value from server virtualization both today and tomorrow.

VMWare

Microsoft Virtual Server - mainly popular with SME's who do not have VMWare.

Citrix

PowerVM Lx86 - IBM's Linux virtualization software integrated with IBM Servers

NEXT: Virtualization Implementation Plan

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