|Over the last three posts I've been discussing a few of the most frequently asked questions regarding the WebSphere CloudBurst Appliance. I'd like to wrap up today with a fourth and final installment.|
|If you have read some of my entries before, or if you have read any of our WebSphere CloudBurst articles on IBM's developerWorks, then you know that the appliance brings extreme simplification and safety to applying fixes and service level upgrades to running WebSphere Application Server virtual systems. Users select a virtual system, choose a fix or service level upgrade, and then WebSphere CloudBurst drives the application of the fix or upgrade to the system. Before applying the fix or upgrade, the appliance takes a snapshot of the virtual system, and users can simply click a button to roll back to the previous state if the process produces undesired results.|
|This is a pretty strong value add to WebSphere Application Server management and one that our users typically immediately understand. Almost always though, after users see this they are curious about another aspect of rolling out fixes and upgrades in WebSphere CloudBurst. In particular, they want to know how they ensure that all subsequent deployments (after applying the fix to a specific virtual system) can be ensured of having the correct fixes and service levels.|
|The answer to this inquiry is that there are a couple of different ways to achieve this, and it depends on what you are try to accomplish and your preferences. For instance, if you want to make sure all of your subsequent deployments have a particular interim fix, you will likely go the route of image extension. First, you pick the WebSphere Application Server Hypervisor Edition image in your catalog to which the fix applies. Next, you extend that image, and once a virtual machine based off the image is accessible, you use existing WebSphere Application Server tools (Update Installer) to apply the fix. After the fix has been applied, you can capture the updated image and then use it as the basis for patterns created from that particular version of the WebSphere Application Server.|
|On the other hand, if you are looking to ensure subsequent deployments are based on a new level of the WebSphere Application Server, your process will be a bit different. First you would load a new WebSphere Application Server Hypervisor Edition image (based on the new level of WebSphere Application Server) into your WebSphere CloudBurst catalog. Then you would select any of your customized patterns you wanted to upgrade to the new level, clone that pattern, and simply select the new image as the basis for the pattern. All of your other customizations are preserved. Really, it's that simple!|
|I hope that over the last month I have answered some of the more common questions about WebSphere CloudBurst. At any point if you have any questions feel free to email me or leave a comment right here on the blog.|
|-- Dustin Amrhein|
A view from the clouds: Cloud computing for developers
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Alas, the wait is over! WebSphere is jumping head first into the cloud computing fray. The announcement today of two new offerings means that companies will be able to build and benefit from private WebSphere clouds. In addition, to these new offerings, IBM also announced two more WebSphere products headed to the Amazon Elastic Compute Cloud.
To start, the new WebSphere Application Server Hypervisor Edition is a virtualized packaging of the popular WebSphere Application Server platform. The virtual image includes a Linux operating system, WebSphere Application Server, and IBM HTTP Server all pre-installed and packaged according to the Open Virtualization Format (OVF). There are six different WebSphere Application Server profiles pre-configured on the image, which allow the virtual image to take many different forms when deployed to a hypervisor. The image supports unattended activation, meaning the virtual image can be deployed to a hypervisor and configured with activation scripts. This feature allows the deployment process to be fully automated. WebSphere Application Server Hypervisor Edition allows users to reap the benefits from virtualization and realize a higher level of business agility with their WebSphere Application Server environments due to the radical ease of deployment.
In addition to WebSphere Application Server Hypervisor Edition, IBM announced the WebSphere CloudBurst Appliance. The WebSphere CloudBurst Appliance is a secure hardware appliance that allows users to construct, store, deploy, and maintain private WebSphere cloud environments. WebSphere CloudBurst delivers WebSphere Application Server configurations including the operating system, which are optimized for virtual environments. These configurations, or patterns as they are called by WebSphere CloudBurst, can be customized by users to build WebSphere Application Server configurations that include the operating system, middleware, and user applications. WebSphere CloudBurst allows users to deploy these patterns to their private cloud, and it provides maintenance and administration capabilities for the deployed virtual systems. In short, WebSphere CloudBurst provides capabilities to manage the entire lifecycle of private WebSphere cloud environments.
The announcement wasn't all about private clouds. IBM also announced its intention to make the WebSphere Application Server and WebSphere eXtreme Scale offerings available as Amazon Machine Images. These AMIs will allow users to utilize both the WebSphere Application Server and WebSphere eXtreme Scale on Amazon's Elastic Compute Cloud (EC2).
It's clearly an exciting and innovative time for cloud computing in WebSphere. Stay tuned to our blog and WebSphere Cloud Computing for Developers site for more information and resources on these new offerings. In the meantime, check out the WebSphere Application Server Hypervisor Edition page and the WebSphere CloudBurst page for more information and live demos!
-- Dustin Amrhein