How to increase the size of an RDM disk in vmware esxi 5.1 vm's

I have a lun created with a san which is 1500GB. I have increased the size now to 2000GB.
How do I get this new size to show up in the vm which is using the rdm disk?
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Re-scan the disk in the OS. Using Disk Management.

You will need to expand the disk, in the OS.

see my Article for methods

HOW TO:  Resize a VMware (VMDK) Virtual Disk
vmichAuthor Commented:
well the disk that I have are RDM so the rescan will not work with these to see the new size that I changed via the san..
vmichAuthor Commented:
So it looks like I need to power down the vm and then remove the rdm disks and then add them back in for it to see the extra storage correct?
Also, I guess since the disk are mbr on the windows side, the largest disk I can have is 2TB correct?
vmichAuthor Commented:
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