Containers vs VMs: What's the difference?

What are virtual machines and containers, and how do they fit into our modern cloud-native way of building and architecting applications?

In this lightboard video, Nigel Brown with IBM Cloud, answers this question and much more in four parts. He also breaks down why users should not just look at virtual machines and containers as competing technologies because there can be a lot of benefits of having them work together for particular use cases.

#Containers #VirtualMachines #CloudComputing

[heLostAndDamned]

key sentence is: "VM is isolation of machines, while Containers is isolation of processes"

[fuqingwang]

1. The level at which virtualization happens - virtualization happens at hardware level vs. OS level
2. The type of isolation achieved - isolation of machines vs. isolation of processes
3. How resources are accessed - via hypervisor vs. via kernel features such as namespace and cgroups
4. Flexibility of hardware vs. portability

[stephwliu]

Can we get Nigel to do more explanation videos? Super great explanation and very personable speaker!

[lisun]

2:17 OS level virtualization --Containers vs hardware level virtualization --VM
4:17 isolation of process --Containers vs isolation of the machine --VM
4:22 different in access:
5:37 different in flexibility(VM) and portability (Container) : [6:03 Docker file]
6:55 Type1 HYPERVISOR & Type2 HYPERVISOR;
7:22 collaboration of type2 HV (flexibility) and Containers(portability) --KubeVirt, new version of Kubernetes, OpenShift.

[wavemancali]

Dude, I wish I had more teachers like you when I was entering the tech field. You have explained this very well in such a short video.

[guidoricciardi]

Finally someone who can make the topic understandable. Nigel, you and the team that produced this video are great. IBM is really lucky to find you!

[reeteshhurkhoo]

I'm really impressed with the explanation as well as the lightboard which has been used. Most tutors use traditional whiteboards or PowerPoint presentations. Technically and content wise this lecture is a class above. Thanks a lot Nigel!!!

[carmensandoval]

💡AHA! Moment here @7:21! We can run VMs and Containers as technologies that can work together not as competing technologies. Great video! Shoutouts to the whole team behind this video! Nigel, you're amazing!

[nellyfrittata]

So Nigel is left handed and writing backwards? Impressive

[whippoorwill]

Real sweet-spot delivery: technical content explained clearly and accurately, in accessible and conversational language. My employer holds twice-yearly conventions; I'd give a lot to have Nigel Brown invited as a guest presenter.

[dasamlan]

Very well explained Nigel, really liked the way and the speed at which you explained - not too fast or too slow. Keep it up, make more videos. Cheers!

[josemedeiros]

Great explanation, information and video. I am a former IBMer, I worked for IBM Global Services 1996-1998 supporting LSI Logic's Microsoft's NT 3.52 servers, and Microsoft's NT 4 servers and Lotus Notes servers at IBM's Storage Division in San Jose, California.

[mirzosharifjalolov]

Finally I found a clear and clean explanation about these two confusing (at least for me) concepts.
Thank you for excellent presentation!

[lesterpalmiano]

By far, this video brought more clarity about containers than the many videosI watched previously. Newbie to cloud engineering and getting my knowledge up for the AZ900 so trying to dissect everything cloud. Thanks for making this much easier to understand and build on!

[arnavpatel]

This guy is great! I really feel like I learned something here, keep it up Nigel!

[darman]

Thanks. I’ve been trying to understand containers for an AWS cert exam and other videos were either too detailed or full of vague company jargon that the average person doesn’t understand. This is short, clear, and to the point. Thanks!

[Darltk]

Great video and explanation. I have went through training but this is one of the best explanations that I have had. Thanks for sharing.

[forrestpasky]

This is best simplest explanation I have seen. Thank you NIgel. I'll look for other videos by you.

[Exen]

The easiest and best explanation that I have seen on youtube about containers vs VM! Nicely done!

[adebolarotimi-silva]

Finally, someone who knows how to demystify vague IT concepts; thanks brother for an absolutely lucid explanation.