Resource Library

This paper is a high level, moderately technical understanding of Hyper-Converged Infrastructures. IT managers, data center architects, and administrators alike may find this information helpful in their pursuit to simplify the data center and improve application performance.

Measurements and metrics provide a view into every aspect of an organization. From resource availability to necessary improvements, measurements are the key to successfully understanding how your organization is performing. This paper will give you guidance on why measuring is important, how to get started, what types of metrics are available, what should be measured, and how to go about initiating improvements.

Answer the questions posed in our ITIL Decision Tree to see if you should pursue ITIL 4. It’s easy-to-follow and no matter how you answer, it will provide a distinct next step for your ITIL journey.

In this hour-long webinar by Global Knowledge instructor and ITIL Expert Michael Scarborough, you will learn how to study for and succeed in passing ITIL Intermediate Exams. You will learn how to approach an ITIL Intermediate exam, the true/false approach and why it works and how to study for the ITIL Intermediate exams.

Every second of every day, data is being sent and received. Billions of data packets are processed by your company’s network every day. In fact, you received dozens of packets just to read this article, but the vast majority of us have no idea how this works. People have no clue as to what goes on behind the scenes to ensure data actually gets to the right device.

Accessing cloud-based resources, whether they be IaaS/PaaS/SaaS-based, is very convenient. With a browser and Internet connection, you are up and running. No driving to your work office, no need to log into the corporate network. Just open up your web browser and go. This convenience, however, comes with a security risk. All of your business work is conducted over an insecure communication network. Unlike your office network, where the network link between you and the data center is under corporate control and is physically secure, the cloud access link is over the Internet.

Cisco Internetwork Operating System (IOS) has been around since a little after the inception of Cisco Systems as a company. In 1984, Len and Sandy Bosack from Stanford University founded Cisco Systems with a small commercial gateway server. The first Cisco router that I touched was an Advanced Gateway Server (AGS), which was the first marketed product of the company. After this came the Mid-Range Gateway Server (MGS), the Compact Gateway Server (CGS) and later the Integrated Gateway Server (IGS) and AGS+. The first version of IOS that I touched was 8.2(7). The operating system was based on a Unix-based system and was designed as a monolithic operating system, meaning that processes are stacked and interrelated.

We asked for your top IT horror stories, and you delivered. Read the most unexpected and cringe-worthy IT nightmares from fellow IT professionals.

ITIL® is still recognised as the de facto standard in delivering end-to-end, holistic IT services. The 4th iteration retains ITIL’s place as one of the key tools at the disposal of organization’s seeking to manage digital transformations.

The ITIL 4 update is the first since 2011, and will address the new processes, vocabulary, and methods used in modern IT, including DevOps, Agile, and Lean IT development.