ESXi is a type of hypervisor. Hypervisor is nothing but a virtual machine manager which creates a virtualized network and maintains multiple operating systems that are present in a virtualized network providing concurrency and reducing the cost thereby. ESXi provides improved security and is considered to be the best hypervisor or virtual machine manager that is there. ESXi server boasts of its increased reliability and manageability which is implemented by the virtual server on the virtualized environment. Concurrency of guest operating systems is given precedence by ESXi too. The job of the virtual machine manager is to take care of the connected guests in the virtualized environment. Every terminal is allowed to carry on their task without creating any sort of disturbance from the server end. The virtualized environment makes a terminal or a single virtual machine that is connected in the network to get an impression as if the client is working on a real machine although the system is virtualized in nature. It is hard to differentiate logical from the real machine.

ESXi server directly continues installation on the hardware without involving operating system from any end. This fact makes it the fastest virtual machine manager when it comes to the installation, configuration and the deployment of the server. The job of the ESXi server is to handle numerous guests and clients that are connected to the virtualized network without giving them the impression that they are connected to a virtualized environment. As virtualization has spread its wings, various costs like power consumption, cooling load and hardware cost have been drastically reduced. Cost efficiency has been given precedence ever since and every data center and company has started installing virtual machine managers to create a virtualized environment for improved performance. The virtual machine manager plays a vital role in development and creation of a virtual environment which increases the productivity and reliability quotient of the company.

Every backup creation is taken care of by backup ESXi as such. Creation of restore points is done as it ensures rolling back in the event of data failure or loss. Everything is managed by backup ESXi. All the files of configuration of ESXi server are periodically stored on a compact virtual device by backup ESXi. It is the prime concern of backup ESXi to ensure backup creation. Regular intervals could also be specified by the help of backup ESXi. The primary job of backup ESXi is to create backup but it could be used to recover the data too.