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LXC container vs VM – Let’s discuss in detail!

by | Feb 27, 2021

LXC container vs VM – How do they differ from each other?

Linux containers are designed for running applications whereas Virtual Machines are designed for running Operating Systems.

As part of our Server Management Services, we help customers in choosing the right option.

Today, we’ll do an analysis and see what our Support Engineers suggest as the best to our customers.

 

How does LXC container differ from VM?

Let’s discuss in detail on LXC containers vs VM and see which is the best among these two.

 

LXC Container vs VM

 

LXC Containers

LXC is short for Linux Containers. Containers mainly help in modularizing services or applications. Containers are a solution when there is a problem with the reliability of running the software when moving from one computing environment to another. We highly recommend them in scenarios where customers need to run multiple instances of database management, web server, etc.

The main aim of the LXC container is to create an environment as close as possible to a standard Linux installation but without the requirement for a separate kernel.

Linux containers use fewer resources as they just need to run an application. But VM’s need more as it has to run the entire OS.

 

Virtual Machines

The simplest way of defining a virtual machine is creating a computer within a physical computer.

Multiple virtual machines can run at a time on the same physical computer. Each VM has its own virtual hardware, including CPUs, hard drives, and other devices.

Virtual Machines can be moved easily from one server to another, even in running state. This helps in balancing the load in servers.

 

Which is the best among LXC container vs VM?

Recently one of our customers approached us for choosing him the best among LXC containers and VM. Our Support Engineers suggested him to use VM as he needs to run the entire LAMP(Linux, Apache, MySQL, PHP) stack on its own server.

There are many positives and negatives when we talk about LXC containers and VMs. Today we are going to discuss some of them.

One of the main advantages of LXC containers over VM is that an application running in a container can be easily ported to a different container irrespective of the OS. But it is less secured when comparing with VM as it shares system resources.

Whereas one of the reasons for choosing VM over LCX is that we can choose and control its OS, updates, etc. Also, It provides more isolation and security.

The main difference is that VMs require their own kernel instance to run while containers share the same kernel. In other words, containers are virtualization at the operating-system-level whereas VMs is virtualization at the hardware level.

We can’t choose one over the other as both are the best in their own areas, and they have their own strengths and weaknesses.

[Need any further assistance with LXC containers? – We can help you with it]

 

Conclusion

In conclusion, VMs are the best choice if you need to host multiple applications in the same environment for multiple purposes. LXC containers are preferred in cases where you have a single-purpose application environment. Today, We discussed in detail LXC container vs VM and saw how our Support Engineers choose the best.

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