Before you begin, make sure that you do not have an active snapshot
on the VM, extending a virtual disk with a snapshot will cause
corrpution
Extend the boot volume of Windows Server 2003 Virtual Machine
To start, I have a Windows Server 2003 Virtual Machine that has a 5.3G disk
allocated to it, I need to expand this disk to 10G.
Step 1: Power off the virtual machine that holds the boot volume that you want
to extend.
Step 2: Make a backup copy of your virutal disk, this is optional but if you
mess up don't call me unless you're willing to pay.
Step 3: From the service console, increase the size of the .dsk or .vmdk
virtual disk file. This can also be accomplished through the Virtual
Infrastructure Client if you are using VirtualCenter 2.x+.
[root@esx-test local]# ls -lah test.vmdk -rw------- 1 root root 5.4G Jul 18 13:57 test.vmdk
Extend the virtual disk with vmkfstools. The input to the -X switch is the size that you want the disk file to be not the size you want to extend the disk file by.
[root@esx-test local]# vmkfstools -X 10G test.vmdk
View the new size of test.vmdk
[root@esx-test local]# ls -lah test.vmdk -rw------- 1 root root 10G Jul 18 13:57 test.vmdk
Step 4: For this step you will need an additional Virtual Machine running
Windows Server 2003. Power off the second Virtual Machine, and add the disk
from the first Virtual Machine to it through the mui. Power up the second
Virtual Machine and verify that the imported disk has unallocated space on
it.
From the run menu type "diskpart.exe" to enter the command line utility to
resize disk partitions in Windows Server 2003.
The command list volume will show you all the available volumes. Select
your volume as shown below. select volume 1 corresponds to the "D"
volume that I want to exntend. Finally extend the volume with the
extend command.
If all goes well, the partition will be immediately exnteded under the Disk
Management snap in.
Step 5: Shut down the second Virtual Machine and remove the disk from the
second Virtual Machine. Power on the first Virtual Machine and check out your
new space.
