We wanted to reduce the size of the VMware virtual machine disk (VMDK) from 50 GB to 25GB. After the letters, RW shows the VMware virtual disk (VMDK) size.The number highlighted above, under the heading #Extent explanation.These are some things, which is a descriptor file contains: It is the descriptor file and has the variables for the size of the *.-flat.vmdk. Then, power OFF the Virtual Machine, to change to the data store path where the VMware virtual machine disk (VMDK) is located.Firstly, you need to log in and connect to the VMware vSphere Host ESXi server, which hosts the virtual machine.Then start the VM, log in to the guest OS, and make sure that the unallocated area has disappeared and the disk size has been reduced.Ensure the new size displays in the VM properties.Once we move the virtual machine files, the new size of its virtual disk will display in its properties. Then we clone or migrate the virtual machine to another datastore.Specify the new size, save the changes and close the file. From the down arrow key, go to the line containing the disk size.Set the new size of the virtual disk using a text editor. To reduce the VMDK disk from 80 to 40 GB, we have to specify 83886080 in the Extent description section.The size of the vmdk disk is shown in the #Extent description section.We display the contents of the virtual disk configuration file (*.vmdk) using the cat command:# cat test_vm_3.vmdk.Then we go to the directory the VMDK file of our VM is located in:cd /vmfs/volumes/datastore/test-VM.Via SSH, we connect to the console of the ESXi host the VM is registered on.Initially, we shut down the virtual machine we want to reduce disk size.

In order to reduce the size of the VMDK file on the VMWare VMFS file system, our Support Techs suggests the following steps: Reduce the VMDK File Size of the VMWare Virtual Machine

Increase datastore size vmware esxi 5