Start Updating host file

Updating host file

ESX/ESXi is the primary component in the VMware Infrastructure software suite.

VMFS enables multiple hosts to access the same SAN LUNs simultaneously, while file-level locking provides simple protection to file-system integrity.

This results in an error message displayed on a purple diagnostic screen.

In traditional systems, a given operating system runs a single kernel.

The VMware FAQ mentions that ESX has both a Linux 2.4 kernel and vmkernel – hence confusion over whether ESX has a Linux base.

The intended effect of this process is to minimize the time during which the VM is suspended; in a best case this will be the time of the final transfer plus the time required to start the new VM.

VMware ESX is available in two main types: ESX and ESXi, although since version 5 only ESXi is continued.

An ESX system starts a Linux kernel first, but it loads vmkernel (also described by VMware as a kernel), which according to VMware 'wraps around' the linux kernel, and which (according to VMware Inc) does not derive from Linux.

The ESX userspace environment, known as the "Service Console" (or as "COS" or as "vmnix"), derives from a modified version of Red Hat Linux, (Red Hat 7.2 for ESX 2.x and Red Hat Enterprise Linux 3 for ESX 3.x).

At least some of the modules derive from modules used in the Linux kernel.

To access these modules, an additional module called In ESX (and not ESXi), the Service Console is a vestigial general purpose operating system most significantly used as bootstrap for the VMware kernel, vmkernel, and secondarily used as a management interface.

ESX uses a Linux kernel to load additional code: often referred to by VMware, Inc. The dependencies between the "vmkernel" and the Linux part of the ESX server have changed drastically over different major versions of the software.