Problem with using full capacity of a RAID 10

[Susan_773]

I have a HP b120i RAID card, which is a software RAID card.

I have 4 2TB drives in a RAID 10.

The RAID card shows the logical drive as 3.7TB

In Server 2016 setup, I format the drive as GPT.

The drive shows up as 3.7TB unallocated.

I create a partition and the last 1.6TB is separated from the remaining unallocated so I now have 2 unallocated partitions.

If I create partitions on the remaining unallocated of the first 2TB, I cannot create a partition on the additional 1.6TB partition.

I receive the error 0x80042468

Is this a limitation of the RAID controller or something in Windows that I am missing?

Thanks

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