Updates to the Red Hat Enterprise Clustering and Storage Management course

by Wander Boessenkool (Red Hat)

With the release of the updated Red Hat Enterprise Clustering and Storage Management Course (RH436) for Red Hat Enterprise Linux 6 a couple of new subjects have been introduced, while others have been updated to reflect the changes in the Red Hat High-Availability Add-On moving from Red Hat Enterprise Linux 5 to Red Hat Enterprise Linux 6.

One of the most noticeable new subjects in this updated course is the inclusion of an introduction to highly available, distributed, scalable storage using Red Hat Storage Server. Other updates include the use of multipathed storage throughout the course, as well as coverage of the XFS® file system.

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Guest Post: Sean Millichamp, Red Hat Certified Professional of the Year

by Sean Millichamp (Secure-24)

Being chosen as the worldwide Red Hat Certified Professional of the Year has been a bit surreal. It has been an incredible honor and fantastic experience, especially being at the Summit this year. One of the questions I have been asked over the past few weeks is, “Sean, how did you do it? How were YOU the one chosen as the RHCP of the year?” The easy answer is that I wrote an essay and they chose me. But I believe that the real answer at the heart of things is open source, the community and many years of experience.

My first introduction to Linux in 1993 with Yggdrasil LGX was a spectacular failure. I’d found Yggdrasil for $10 at a local computer expo and bought it because I thought it would be neat to learn something about Unix. It lasted maybe a week and then it was off my system and forgotten. I couldn’t get networking to work. I couldn’t get X-Windows to work. I barely knew how to list files in a directory. What went wrong? I could point to a lot of things but my main trouble was the lack of hardware support and my complete lack of Unix skills. In retrospect, the biggest failure was that I had no idea about the Linux community out there (and without an Internet connection, I had no way to access it).

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What is CloudForms?

by Vinny Valdez (Red Hat)

The following is an excerpt of a post originally published on June 29, 2012, on Vinny’s Tech Garage.

I’m really excited about CloudForms. In my recorded demo at Summit, I showed a RHEL 2-node active/passive cluster with GFS off an iSCSI target. Then I moved all the underlying CloudForms Cloud Engine components to shared storage. I was able to launch instances, fail over Cloud Engine, and see the correct status. After managing the instances, fail back, and all was good. All of this works because the RHEL HA cluster stops the databases and other services first, moves the floating ip over, then starts the services on the active node. This was a very basic deployment, much more could be explored with clustered PostgreSQL and sharded Mongo.

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Our favorites for the week

by Mike Randall (Red Hat)

Below are links to some pages and articles we found this week and really liked.

Red Hat
Taste of Training: JBoss Enterprise Application Platform 6 – Domain vs. Standalone Server Deployments, RedHat.com
Red Hat starts with Individual Exam Sessions, ITCertificationMaster.com
Monthly Facebook contest, Facebook.com
Hybrid cloud, PaaS mark ‘new era for Red Hat’, Wired.com
Another look at RHEV with Dor Laor, YouTube.com

Non-Red Hat

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Reducing friction in agile development using cloud

by Zach Rhoads (Red Hat)

One of the core tenants of agile development is to focus on the tasks that are the highest priority and immediate need. This is sometimes referred to as “Just-in-Time” development. The idea is to focus on the tasks needed to ship the feature now and worry about everything else when it is actually needed. Another tenant that goes hand-in-hand with “Just-in-Time” is the idea of failing early. Basically, a team should know as early as possible if something is going to fail, that way the team does not waste time going down the wrong path. This means the team should develop a feature and solicit feedback in short cycles, allowing the team to quickly understand what works and what does not.

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