4. Managing Virtual Machines

Each virtual machine (VM) is an independent system with an independent set of virtual hardware. Its main features are the following:

  • A virtual machine resembles and works like a regular computer. It has its own virtual hardware. Software applications can run in virtual machines without any modifications or adjustment.

  • Virtual machine configuration can be changed easily, for example, by adding new virtual disks or memory.

  • Although virtual machines share physical hardware resources, they are fully isolated from each other (file system, processes, sysctl variables) and the compute node.

  • A virtual machine can run any supported guest operating system.

The following table lists the current virtual machine configuration limits:




1 TiB


64 virtual CPUs


15 volumes, 512 TiB each


15 NICs

In this chapter: