How do I get windows to see an extent added through VMWare?

I added an extent to my data store in VMWare that my server is in.  It says the datastore is 20 gb bigger which is what I set it at so it sees is in VMWare.  How do I get my server to see that unallocated space?
TriCountyITAsked:
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franked_itCommented:
Depending on which version of Windows you are using, you may be able to use Disk Management to expand the volume.  You can get to this by going to Start -> Run  and typing in: diskmgmt.msc.  You should also be able to use a tool like PartitionMagic to resize the partition.
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franked_itCommented:
If you're talking about ESX, and you've just made the VMFS data store larger, you'll need to make the Virtual Disk assigned to that particular VM larger.  Then you can use the OS tools to resize the partition.  

Here's a post that has instructions for ESX disk size change:
http://communities.vmware.com/message/417860
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franked_itCommented:
Here's a step by step showing DiskManager instead of trying to use command line tools for expanding the OS volume:
http://vmprofessional.com/index.php?content=2k3resize
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TriCountyITAuthor Commented:
Is there a GUI way of doing it in VMware?
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franked_itCommented:
There is no GUI way of managing the VMware virtual disks in Linux.  I can't remember if I found one in ESX, I don't think there is.  I don't think that the Windows VMware Workstation has a GUI either.

I think VMware generally doesn't want users to constantly change the virtual disk size, it's kind of a hidden feature they've made available.

It would help if I knew what VMware product you are using: Workstation for Linux, Workstation for Windows, ESX, VMware Server, VMware player, etc.
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TriCountyITAuthor Commented:
I am using ESX server 3.5.
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franked_itCommented:
With ESX, you're stuck using the command line tool mentioned above, or using VMware converter.  Since the VM is already there, you should be able to use the free VMware converter.  just pay attention to the step regarding the disk size.  It will let you specify a new volume size for each volume in the original VM.  It will also expand the guest OS for you.

Here's a link to the download for VMware converter:
http://www.vmware.com/download/converter/

Do be aware that any snapshots of this VM will cause the command-line tool to function, but the VM may not boot any more.  Snapshots may also affect VMware converter's ability to clone and resize the disk, but I'm not sure.
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franked_itCommented:
Were you able to get the virtual drive resized?
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TriCountyITAuthor Commented:
I did and I didnt if that makes sense.  I used too much of the datastore to begin with so I wasnt able to expand it like I wanted to.  But I was able to expand like 500 mb just for testing purposes.  Now what I am doing is just creating a seperate LUN and using the Raw Device Mapping for my data.  It exands way easier that trying to make the virtual machine (c:drive) bigger.  Thanks for all the help.
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franked_itCommented:
Bummer!  No problem.  
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