Solved Can't extend volume

[nkoss]

I have a Drobo system with 16 TB of hard disk. Windows has it allocated as a 2 TB and a 14 TB for some reason. I formatted the 2 TB as seen in the first screenshot. I then Right click in the computer management window and click on Extend Volume. This is seen in the second screenshot. I then click Finish and get the message seen in the last screenshot.. I know that a 16 TB disk is OK since I have had it before. What is going on here and how do I extend the volume?

 

[pbcopter]

To use the entire size contiguously, you must configure the drive as GPT not MBR.

 

[nkoss]

Thanks...I finally got things working...appreciate the help!!

 

[pbcopter]

You're welcome.