Your customer want you to add a new volume in one of the VM Windows server but can not affort down time? No worry, you can do that easily with ESX.

Below is step by step guide with screen captured from the VM (my test machine is running on Windows 2003 Enterprise):

Tip: It is best to do a snapshot before you start this task, incase anything goes wrong.

This is my test VM machine. It is having one disk at beginning.

1) This is my test VM machine. It is having one disk at beginning.

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