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If you’ve been around IT for even a few minutes, you’ve likely heard the acronyms “LAN” and “WAN” used by fellow technicians. But with all of the possible variations of networks—different sizes, different arrangements, and different protocols—how do you tell the difference between a LAN and a WAN and everything in between? The simple answer is one of scope and size.
Cloud can be described as the ability for users to provision new environments and/or services in a self-service fashion backed by automation. z Systems use technologies that best allow us to apply the strengths of our platform to cloud methodologies while complying with industry standards and preserving the security and manageability of our platform. This enables us to use the strengths of z Systems scalable multitenant architecture for on-premise cloud deployments. z Systems can also expose valuable enterprise services in a secure manner that feels native to mobile and Web application developers, enabling organizations to use enterprise services on z Systems with a frictionless experience for distributed developers.
The amount of data being produced does not seem to show any sign of slowing; if anything, it may in fact be exceeding projected growth rates. As these absolute limitations on raw hardware capacity begin to be felt, the importance of looking at all of the aspects of a computing infrastructure in order to tackle the future's truly large-scale computing demands, is imperative. This white paper examines how IBM's initiatives like Linux, Cloud Manager with OpenStack and the OpenPower Foundation IBM are meeting this challenge.
PowerVM is the virtualization environment for AIX, Linux, and IBM i running on the IBM POWER hardware platform. This white paper provides an overview of PowerVM concepts, architecture, terminology, and capabilities.
The results are in, and analysis is complete from our seventh annual IT Skills and Salary Survey. This was our second in partnership with Windows IT Pro and one of the industry's largest with more than 12,000 North American respondents. Download your copy to learn how your salary, bonus, job function, and other factors compare to your peers.
The short answer (and a common one in our industry): it depends. When comparing Cisco IOS with Juniper Junos, the decision to choose one over the other is difficult and often boils down to cost. Of course, there are other factors to consider.
Get a look at how your numbers compare to your peers and neighbors with our comprehensive lists below. A Note About Our Certification List For the condensed list of certifications in our 2013 IT Skills & Salary Report, we included only certifications that received enough responses to be statistically relevant. The list below is more inclusive. Certification data is for informational purposes only, as the values of some of the more exclusive certifications are based on few responses and, therefore, are less reliable.
Regardless of your vendor preference or your experience on the Juniper JUNOS CLI, assuming you have a point of reference to another vendor, your first thought when experiencing JUNOS is, “I have been here before.” The CLI is familiar, convenient, and polished. The similarities between JUNOS CLI and another CLI such as Cisco’s IOS are not what I want to focus on here however; it is their differences I want to focus on. But first, when you connect to a JUNOS powered device and access Operational Mode (see Brad Wilson’s blog post Introduction to Juniper Junos), it looks very much like the User EXEC Mode in IOS. In fact, there are a lot of JUNOS commands that are very much like the IOS User EXEC Mode commands.
None of us have much time to waste, so what can you do when your environment changes quickly and you need to come up to speed on a device that you have never seen before? You find the quickest way to bring yourself up to speed. Some of you will have experience with other vendors’ equipment, and some of you will not have much experience at all; therefore, we will focus on topics that will get your feet wet the quickest and have you talking Junos in no time.
For the fourth year in a row, Global Knowledge and TechRepublic have partnered to create a comprehensive IT salary survey. With over 12,000 responses, the 2011 report has turned out to be one of this year's most relevant and revealing salary surveys in the industry. Below is our complete list of Salaries by Popular Certifications and Salaries by State.