These days, even business-critical applications are being virtualized, and with the increasing costs and complexity of data environments, it’s not surprising. Some estimate that large organizations are as much as 70% virtualized already, with no plans to go back to physical servers. Virtualization, however, introduces new challenges for the Oracle DBA, including getting visibility to … Read moreMust-know Tips and Tools for Oracle Virtualization
Test Driven Development (TDD) is not only a discipline we like to write about, we practice it ourselves every day. This is a blog post we shared with our friends over at Rainforest QA. Because we know you can’t enough of a good thing, we’re re-posting it here. Enjoy! Librato is a prolific engineering shop. … Read moreTDD: A Blueprint for Choosing Metrics
Imagine for a moment that you have suddenly been promoted from regular old developer to senior architect, and tasked with overseeing the telemetry efforts for all of the engineering teams at your organization. I recently had a conversation at DevOps Days Toronto with someone who was living through exactly that experience. He’d just been put in … Read moreChoosing Metrics that Matter (Beyond CPU/Disk/Network)
Virtualization management requires mastering a specific set of skills. But once mastered, these essential skills can lead to a long and meaningful career in IT. IT pros need a foundation in technologies. To extend utility to their organizations, they should further develop three essential skills – monitoring, troubleshooting, and reporting. Think back to your first responsibilities as an … Read moreVirtualization Monitoring Management Guide
The world may run on coffee, but it’s the alarm clock that gets us out of bed. It operates on a simple threshold. You set the time that’s important to you and receive an alert when that variable is true. Like your alarm clock, today’s tooling for web service alerting often operates on simple thresholds, … Read moreNo Need to Be Alarmed: Crafting an Effective Alert Strategy
Virtualization is supposed to provide consolidation and high availability benefits for applications. So what is a hypervisor? Why are there two types of hypervisors? What’s the difference between VMware® vSphere™ and Microsoft® Hyper-V®? What exactly are Type 1 and Type 2 hypervisors? What if I just want to learn about vSphere and Hyper-V so that I can compare … Read moreComparing vSphere and Hyper-V
I need to learn this. I get that feeling from time to time. Maybe you have experienced it too. For me, it happens when I know there is a better way to do things and I feel there isn’t enough time to stop and learn. It actually happened a few weeks ago. We have a large … Read moreTimeline Profiling with Chrome DevTools
Amazon CloudWatch is a popular option for collecting system and performance metrics from your AWS resources. For some services, it’s the only means available to collect badly needed metrics data. CloudWatch makes it trivially easy to fetch core system metrics like CPU, Network, and Disk, as well as more specialized metrics like queue-sizes and latency … Read moreHow To Make CloudWatch AWSome
Digital Experience Monitoring (DEM) is so business critical that it’s featured in a Gartner magic quadrant. At the same time, it is so new that even Wikipedia does not know what it is. (related read: What is Digital Experience Monitoring (and Why Should You Care)? Why is that? Monitoring as a practice is as old as dirt, … Read moreThe Evolution of the Web and Digital Experience Monitoring
People using our services would be very familiar with our basic HTTP Uptime check by now. After all, it’s our most used feature. Something a lot of our users might not know is that you can make the HTTP checks more advanced by using the Optional settings of the check. You find these settings under … Read moreMake the most of your HTTP check: best practice for optional settings
