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Windows 2008 R2 raw mapped drive won't extend

I have a guest server (Win08 R2) on an ESX 5.1 host with a few raw mapped drives back to my Dell/Compellent SAN. When I extended the volume on the SAN (500GB ro 750GB) it works fine. I now need to extend it to 1TB. The SAN (and support) sees the volume as 1TB. I rescanned the drives multiple times and tried this scenario on a second volume on the same server. Windows 2008 R2 doesn't see the unallocated space. The host see the drives as basic.

I also tried the same scenario on a Windows 2012 R2 Server and Windows 2003 Server. They both were successful.

Thoughts?
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PeretzSternACC
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PeretzSternACC
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1 Solution
 
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
A few things, this should be plug and play, e.g. hot plug.

But have you tried restarting the virtual machine guest machine?
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PeretzSternACCAuthor Commented:
@hanccocka, Yes, I've rebooted the VM. After a few hours the new space did show up. I don't know what's cussing this delay.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Yes, we've been observing this with a few machines, it's not "instant" plug and play, hit plug, as it should be.
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