VMware ESXi: How to check disk for errorsĪ VMDK file, as its full name 'Virtual Machine Disk' suggests, is a virtual disk that contains all the information about a VM and is commonly used in cloud and virtual computing. For VMware ESXi, a VMDK file mainly consists of a virtual disk descriptor diskname.vmdk and a virtual disk extent diskname-flat.vmdk which holds the raw files. Note: VMKFSTOOLS cannot fix all the ESXi disk errors.Can you run chkdsk on a virtual machine?.How to check ESXi disk failures from Command Line.VMware ESXi: How to check disk for errors.