What is Zombie VM
A zombie VM is a virtual machine that does not function properly in a software environment but continues to function, consume resources, and provide no value.
The term 'zombie VM' is sometimes used interchangeably with the term 'orphaned VM', which is a computer that has been disconnected from its host. However, with a zombie VM, there is the implication that the VM is still actively using resources because it is still connected to its host. Along with misconfigured VMs, system administrators also look for disconnected or otherwise useless VMDK files, the files on those systems, in an attempt to clean up and prevent what is often referred to as 'VM sprawl'. VM sprawl occurs when more VMs are provisioned or created than required. This is mainly due to inefficiencies in building systems and changes in systems over time, where without rigorous analysis and constant management.