What the Heck is a Unikernel?

Posted by Ian Eyberg on Jul 6, 2018 12:41:10 PM

Guest post from Ian Eyberg, CEO and Founder of NanoVMS

Virtual machines, containers, and unikernels. What are the differences? What is a unikernel anyways?

While virtual machines and containers get tossed around a lot in IT circles a new term has started entering the vernacular - unikernels - but what are they? Unikernels are a method of deploying software. They contain a given software application and the bits of the operating system that is needed boiled down to a very small lightweight secure virtual machine. Unlike containers, unikernels are at the end of the day, just virtual machines, albeit special tiny ones. Sometimes the VM can be ten to twenty megabytes.

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Topics: Virtual Machines, Unikernel

There’s more to a container than, well, a container.

Posted by Clive Longbottom on Jul 26, 2016 10:15:36 AM

It seems that virtual machines (VMs) are so last year. A new ship has sailed in and docked – it’s a container ship and it is full of Dockers (as well as Rkts and Mesos). The idea of containerisation is taking hold – the promise of a lighter means of dealing with applications enabling much higher workload densities and lower storage costs seems to attract developers, sysadmins and line of business people like moths to a flame.

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Topics: containers, Virtual Machines, System Containers

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