Unable to create new volume on Windows 2012 Server

I'm attempting to create a new volume on a 2012 server.

I have 838 total capacity with 244 GB un-allocated.  

I've tried creating a volume every size from 1gb to 244gb but keep getting the error "Failed to create partition - not enough available capacity"
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Tom FI.T. and Support Staff ManagerAsked:
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Cliff GaliherCommented:
What is the disk size, format, and partition layout. You may be hitting other limits (2TB, four volumes on a primary partition, or similar.) Based on the unallocated space, my first guess is you are hitting a 2TB limit on a 3TB drive.
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Tom FI.T. and Support Staff ManagerAuthor Commented:
Its a RAID 10 - 838 GB Total Cap - Ive got C, G and F all fixed at 100, 251 and 244 gb respective.  All NTFS
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Cliff GaliherCommented:
If you I utilized the disk as MBR then you are likely hitting the four volume limit on a primary partition (there is a hidden reserved volume as well as the three you listed.) You'll need to create a new extended partition, and from there you can add new volumes to that partition.
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