Day Two Cloud 032: The Foggy Path To Cloud Certification
Certifications are a tried and true way to boost skills and knowledge, burnish your resume, and create new opportunities. But when it comes to cloud, which certifications should you pursue? Can cloud cert programs keep up with technology churn and rapid rollout of new services? How should you study? What if you fail? We tackle all these questions and more with guest Mike Pfeiffer.
The post Day Two Cloud 032: The Foggy Path To Cloud Certification appeared first on Packet Pushers.
Red Hat, Cloud Save IBM
More than 2,000 IBM clients were using its container systems, and it signed 21 Red Hat deals in Q4...
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Follower Clusters – 3 Major Use Cases for Syncing SQL & NoSQL Deployments
Follower clusters are a ScaleGrid feature that allows you to keep two independent database systems (of the same type) in sync. Unlike cloning or replication, this allows you to maintain an active, point-in-time copy of your production data. This extra cluster, known as a follower cluster, can be leveraged for multiple use cases, including for analyzing, optimizing and testing your application performance for MongoDB, MySQL and PostgreSQL. In this blog post, we will cover the top three scenarios to leverage follower clusters for your application.
How Do Follower Clusters Differ From Replication?
Unlike a static clone, this data imports on a set schedule so your follower cluster is always in sync with your production cluster. Here are a few critical ways in which it differs from replication:
Migration from VMware NSX for vSphere to NSX-T
Migration to VMware NSX-T Data Center (NSX-T) is top of mind for customers who are on NSX for vSphere (NSX-V). Broadly speaking, there are two main methods to migrate from NSX for vSphere to NSX-T Data Center: In Parallel Migration and In Place Migration. This blog post is a high-level overview of the above two approaches to migration.
2 Methods for VMware NSX Migration
Customers could take one of two approaches for migration.
In Parallel Migration:
In this method, NSX-T infrastructure is deployed in parallel along with the existing NSX-V based infrastructure. While some components of NSX-V and NSX-T, such as management, could coexist, compute clusters running the workloads would be running on its own hardware. This could be net new hardware or reclaimed unused hardware from NSX-V.
Migration of the workload in this approach could take couple of different approaches.
- Cattle: New workloads are deployed on NSX-T and the older workloads are allowed to die over time.
- Pets: Lift and shift workloads over to the new NSX-T infrastructure.
In Place Migration
There is simpler method though! A method that doesn’t require dedicated hardware. It’s an in place migration approach. Curious? This method uses Continue reading
ShortestPathFirst Now Has a New, Shorter Domain Name – spfirst.net
ShortestPathFirst now has a new, shorter domain name (spfirst.net) that we intend to use for future correspondence, marketing and business initiatives. We will continue to maintain the longer domain (shortestpathfirst.net) for backward compatibility and for business continuity but for all intents and purposes will use the new domain name where possible. Stay tuned for lots …Continue reading "ShortestPathFirst Now Has a New, Shorter Domain Name – spfirst.net"
5G and Me: And Security
In today’s uber-connected world, everyone has dealt with that little voice in the back of the...
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Vapor IO Raises $90M to Build ‘Nationwide’ Edge Computing Network
It also reached an agreement for Cloudflare to deploy its cloud services on Vapor IO’s Kinetic...
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Juniper to MikroTik – MPLS and VPNv4 interop
Juniper to MikroTik – a new series
Previously, I’ve written a number of articles that compared syntax between Cisco and MikroTik and have received some great feedback on them.
As such, I decided to begin a series on Juniper to MikroTik starting with MPLS and L3VPN interop as it related to a project I was working on last year.
In the world of network engineering, learning a new syntax for a NOS can be overwhelming if you need a specific set of config in a short timeframe. The command structure for RouterOS can be a bit challenging if you are used to Juniper CLI commands.
If you’ve worked with Juniper gear and are comfortable with how to deploy that vendor, it is helpful to draw comparisons between the commands, especially if you are trying to build a network with a MikroTik and Juniper router.
Lab Overview
The lab consists of (3) Juniper P routers and (2) MikroTik PE routers. Although we did not get into L3VPN in this particular lab, the layout is the same.
A note on route-targets
It seems that the format of the route-target has some bearing on this being successful. Normally i’ll use a format like Continue reading
Network Field Day 22
Happy Days have returned! I have been invited to attend Network Field Day #22 (#NFD22) in San Jose, CA on …
The post Network Field Day 22 appeared first on Fryguy's Blog.
Getting More Bang for Your VXLAN Bucks
A little while ago I explained why you can’t use more than 4K VXLAN segments on a ToR switch (at least with most ASICs out there). Does that mean that you’re limited to a total of 4K virtual ethernet segments?
Of course not.
You could implement overlay virtual networks in software (on hypervisors or container hosts), although even there the enterprise products rarely give you more than a few thousand logical switches (to use NSX terminology)… but that’s a product, not technology limitation. Large public cloud providers use the same (or similar) technology to run gazillions of tenant segments.
Read more ...Trade-offs under pressure: heuristics and observations of teams resolving internet service outages (Part 1)
Trade-offs under pressure: heuristics and observations of teams resolving internet service outages, Allspaw, Masters thesis, Lund University, 2015
Following on from the STELLA report, today we’re going back to the first major work to study the human and organisational side of incident management in business-critical Internet services: John Allspaw’s 2015 Masters thesis. The document runs to 87 pages, so I’m going to cover the material across two posts. Today we’ll be looking at the background and literature review sections, which place the activity in a rich context and provide many jumping off points for going deeper in areas of interest to you. In the next post we’ll look at the detailed analysis of how a team at Etsy handled a particular incident on December 4th 2014, to see what we can learn from it.
Why is this even a thing?
Perhaps it seems obvious that incident management is hard. But it’s worth recaping some of the reasons why this is the case, and what makes it an area worthy of study.
The operating environment of Internet services contains many of the ingredients necessary for ambiguity and high consequences for mistakes in the diagnosis and response of an adverse Continue reading
The GPU Is The Worst – And Best – Thing To Happen To The FPGA
A decade or so before the GPU started storming the datacenter thanks to Nvidia’s Tesla GPU accelerators and their CUDA parallel programming environment and CPU offload model, FPGAs were starting to gain traction as accelerators in their own right. …
The GPU Is The Worst – And Best – Thing To Happen To The FPGA was written by Timothy Prickett Morgan at The Next Platform.
The University of Michigan Gets Serious About Supercomputing ROI
The University of Michigan is one of the top academic centers in the United States with over $1.5 …
The University of Michigan Gets Serious About Supercomputing ROI was written by Timothy Prickett Morgan at The Next Platform.
VMware Acquires AIOps Vendor Nyansa to Bolster SD-WAN
The software giant says Nyansa's technology will enable improved network visibility, monitoring,...
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Daily Roundup: Cisco Advances Intent-Based Networking
Cisco advanced intent-based networking; SK boasted standalone 5G first; and Citrix swatted ADC,...
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