The purpose is to create a disk to keep contents shared across the VMs
Following the instructions at http://www.vmware.com/support/ws45/doc/ws40_disks.html#1046465
Find your VM installation and run the following
C:\Program Files\VMware\VMware Workstation>
vmware-vdiskmanager.exe -s 10GB -a ide -t 1 -c "D:\Virtual Machines\vmDisk.vmdk"
(s: size, a: interface, t: type (0-3 for increase and size options), c:create)
Creating disk 'D:\Virtual Machines\vmDisk.vmdk'
Virtual disk creation successful.How to browse a Vmdk?
Tried to add this newly created disk when the vm server was on by going to settings/add/hard drive/existing virtual.
Got error: failed to add disk ide0:1
I shutdown the vm pc and add disk then try starting the machine.
Then went to disk mgt in windows where I got the "Initialize Disk" prompt
New Volume > Simple > Quick format and voila!!