by Satish Irrinki (Red Hat)
Increasingly in today’s world, data centers are moving towards software-defined computing, networking, and storage. IT infrastructure that supports the application and data workloads is moving from bare metal servers to cloud. While the most obvious justification for this shift can be summarized as increased efficiency, capacity utilization, and flexibility (to scale up or down), there are less obvious fundamental economic and financial principles in play that contribute to overall business stability of the organizations and lines of business (LOB).
Cloud computing has changed the cost structure of IT infrastructure. Historically, IT infrastructure was considered a capital expenditure (CapEx) that requires large upfront investments leading to higher fixed costs for the business. With the advent of cloud computing, primarily because of its pay-for-use billing model, IT expenditure shifted from fixed operating cost structure to variable operating cost (OpEx) model.
This shift not only decreases the need for larger cash flow requirements or, in lieu, higher liabilities on balance sheet (akin to capitalization of lease expenses) for the CapEx, it also reduces the volatility in the operating income for the business.
Continue reading “Cloud Adoption for Enhanced Business Stability”
We’re a little late posting these but here are a few photos from the reception honoring our Red Hat Certified Professionals at McGreevy’s in Boston on June 12, 2013.
Continue reading “Photos: Red Hat Certified Professional Reception at Summit”
by Thomas Crowe (Red Hat)
A key component to a successful migration is a “migration mission statement.” The migration mission statement’s purpose is to summarize the key parts of a migration into a succinct, simply-communicated format that results in a clearly defined migration goal that is easily measurable for success. A sample migration mission statement could be:
Migrate the Acme Order Processing java application from the current proprietary IBM hardware running AIX and WebSphere into a cloud infrastructure running Red Hat Enterprise Linux and JBoss Application Server; in order to provide better TCO and ROI, as well as provide increased scalability and reliability. The migration should be performed during non-peak hours, have minimal downtime requirements, and provide for rollback if necessary.
Generally speaking, there are several factors that go into planning and executing a successful migration project. But by answering the following questions, a significant amount of the information necessary for a successful migration can be gathered.
The most basic question to initially ask is simply, “What is being migrated?” This simple question sets the stage for gathering the additional information that is required. Is the migration moving all services from one server to another? Maybe it is migrating an application from one application server to another, or migrating storage from one array to another. Each of these scenarios are going to have unique data-gathering requirements that need to be understood in order to successfully plan and ultimately execute a successful migration.
Continue reading “Determining your ‘migration mission statement’…and why it’s important”
At Red Hat Summit last week in Boston, Rafael Guimarães was awarded this year’s prestigious Red Hat Certified Professional of the Year. A native of Brazil, Guimarães is a Red Hat Certified Engineer (RHCE) and JBoss Certified Application Administrator (JBCAA) at Petrobras, the largest oil company in Brazil and one of the largest in the world. This is his story.
Continue reading “VIDEO: Rafael Guimarães, 2013 Red Hat Certified Professional of the Year”
by Randy Russell and Pete Hnath (Red Hat)
Cloud computing represents a major shift in enterprise IT architecture that requires companies to rethink their strategy. Red Hat is bringing to market a full portfolio of training and certification offerings that enable customers to evaluate Red Hat’s cloud technologies and understand how to deploy them successfully.
Customers seeking to build an open Infrastructure-as-a-Service (IaaS) cloud may look to Red Hat OpenStack as their foundation. OpenStack is emerging as a leading platform for IaaS cloud architectures and has attained broad industry support. Red Hat is excited to announce the immediate availability of Red Hat OpenStack Administration (CL210), which provides architects and system administrators with a hands-on course to learn how to install, configure, and manage a Red Hat OpenStack deployment. Later this summer Red Hat will also introduce the Red Hat certificate of expertise in OpenStack IaaS, which will validate a professional’s ability to successfully deploy and administrate an OpenStack based IaaS cloud.
For customers looking to deliver an open Platform-as-a-Service (PaaS) cloud, OpenShift Enterprise by Red Hat may be the solution. OpenShift gives application developers self-service access so they can easily deploy applications on demand. Red Hat is pleased to announce the immediate availability of OpenShift Enterprise Administration (CL280), a heavily lab-based 2-day course that guides the student through the steps to install, configure and manage an OpenShift based PaaS cloud.
Continue reading “Red Hat Training and certifications help build your path to the cloud”
by Sean Millichamp
Sean Millichamp was crowned worldwide Red Hat Certified Professional of the Year in June 2012 at Red Hat Summit. With Rafael Guimaraes officially set to be the next recipient of the award at next week’s Summit event in Boston, Sean offers us a look back at his past 12 months since winning the esteemed title.
It’s been a little over a year now since Red Hat selected me as the 2012 Worldwide Red Hat Certified Professional of the Year and what a year it has been! The whole experience was (and continues to be) amazing.
Initially, I didn’t tell too many people when Red Hat notified me that I had won. As with any contest there is some requisite legal paperwork (permission to use your name, etc.) that has to be cleared and so I only told my family, my boss, and a couple of other co-workers who knew I had submitted an entry, but that didn’t last long. The news passed quickly from my boss, to the company VP, to the CEO and then to the entire executive and sales teams. I still had not announced it to my surrounding coworkers but when a fairly continuous stream of people began walking up to me to shake my hand I found myself repeatedly explaining to those around me why I was being congratulated and what the award was – all the while caught somewhere between my more typically modest self and extreme bubbling pride.
In fact, I think my employer, Secure-24, was every bit as excited about this award as I was. If this seems unusual you need only to understand our business. We are a managed hosting company: IT is our business. The majority of our employees are either technical or work to directly support technical resources. So, when a senior engineer on one of their main product platforms wins a top award with a key partner – it was a sales/marketing dream come true. Our marketing team even issued a press release about it!
Continue reading “Guest Post: My time as Red Hat Certified Professional of the Year”
by Wander Boessenkool (Red Hat)
Replicated Red Hat Storage Server Volumes provide you with high-availability, when a single server goes down all your data is still there. Even better, if you were using that server to access your data using the native client it will automatically switch over to a server that is still responding. But what if you want to mount the volume while the server you normally use is down?
When you want to mount a Red Hat Storage Server Volume from your /etc/fstab you normally use a line like this:
Continue reading “Mounting a Volume Using the Native Client when a Server is Down”
By Damian Tommasino
The demand for Linux engineers today is growing rapidly with the increase of “cloud” services. More and more organizations want their data to be available everywhere they go with zero downtime to their applications. This kind of demand from organizations requires that engineers know their “stuff” cold. When a web server goes down or a disk fails, you don’t have time to Google for an answer while there is a service outage affecting all of your customers. Becoming Red Hat certified is just one way to set yourself apart when showing potential, or current, employers that you can rise to the challenge.
Red Hat has clearly recognized these types of challenges that engineers and administrators face today when they developed their exams. Instead of the normal Q & A you would expect, these exams are fully hands-on. This lab style exam format helps to set Red Hat apart from other vendors by showing that certified individuals are highly experienced in their roles. For me, having Linux experience is critical to my job and being certified (from multiple vendors) shows expertise to my clients and peers.
The two main Red Hat exams are the Red Hat Certified System Administrator (RHCSA) exam, and the Red Hat Certified Engineer (RHCE) exam. As previously mentioned, each exam is completely hands-on and requires a solid proficiency of Red Hat Enterprise Linux in order to pass. The RHCSA is two and half (2.5) hours long, while the RHCE is two (2) hours.
Continue reading “Guest Post: Preparing for Red Hat exams”