Saturday, April 22, 2006
virts4
Virtualisation have all been hardware-centric, because the inherent inflexibility of hardware
virtualisation can work anywhere in the computing stack.
virtOS=, programs written for one OS to run on another
programs written for a virtual OS run anywhere
(similar to how Java maintains its hardware independence through the Java Virtual Machine).
Java VM versus other
current lack of agreed standards for PC virtualisation tech
We're very early in the process of virtualizing middleware," Eunice says. Vendor examples of the capability include Levanta's Release 3 software for IBM's zSeries and Intrepid M appliance for Linux on x86 servers, Cassatt's Collage and Web Automation Module, and IBM's WebSphere Extended Deployment
Web Automation Module: Apps encountering the most demand will get application server services from wherever they are underutilized across the server set
The savings stem in part from higher server usage levels. For example, WebLogic servers will go from about 40% utilization to 75% and higher, Lynn says. Some hardware servers will go from less than 10% utilization to 50% as multiple virtual machines are stacked up on what used to be siloed servers running single applications. Beyond savings from buying less hardware, often fewer software licenses need to be purchased as well.
http://www.techworld.com/opsys/features/index.cfm?featureid=1783
http://www.itweek.co.uk/itweek/comment/2145883/pros-cons-pc-virtualisation
http://www.theinquirer.net/?article=27253
http://www.xensource.com/
http://www.informationweek.com/software/showArticle.jhtml?articleID=183700351 ¶ 11:17 PM
virtualisation can work anywhere in the computing stack.
virtOS=, programs written for one OS to run on another
programs written for a virtual OS run anywhere
(similar to how Java maintains its hardware independence through the Java Virtual Machine).
Java VM versus other
current lack of agreed standards for PC virtualisation tech
We're very early in the process of virtualizing middleware," Eunice says. Vendor examples of the capability include Levanta's Release 3 software for IBM's zSeries and Intrepid M appliance for Linux on x86 servers, Cassatt's Collage and Web Automation Module, and IBM's WebSphere Extended Deployment
Web Automation Module: Apps encountering the most demand will get application server services from wherever they are underutilized across the server set
The savings stem in part from higher server usage levels. For example, WebLogic servers will go from about 40% utilization to 75% and higher, Lynn says. Some hardware servers will go from less than 10% utilization to 50% as multiple virtual machines are stacked up on what used to be siloed servers running single applications. Beyond savings from buying less hardware, often fewer software licenses need to be purchased as well.
http://www.techworld.com/opsys/features/index.cfm?featureid=1783
http://www.itweek.co.uk/itweek/comment/2145883/pros-cons-pc-virtualisation
http://www.theinquirer.net/?article=27253
http://www.xensource.com/
http://www.informationweek.com/software/showArticle.jhtml?articleID=183700351 ¶ 11:17 PM
