[ TIP OF THE DAY ] What is VMkernel in ESXi?

What is VMkernel in ESXi? Never ignore the short and easy questions in vSphere. Your best answer... The VMkernel is a high-performance operating system that runs directly on the ESXi host. It manages most of the physical resources on the hardware, including memory, physical processors, storage, and networking controllers.

It is important to make a good impression on whoever is ASKING YOU. You can also say. special services such as vMotion, Fault Tolerance, Traffic management, NFS and iSCSI are also controlled by it. Configuration of VMKernel port on ESXi server using a standard or distributed vSwitch makes these services accessible. VMs cannot communicate with the ESXi server without VMKernel.