Adding New HD via LUN The space is not correct

Interesting dilemma

ESXi 5.5 with current updates, RHWS 6.5 With  1 – 100GB vmdk, 1 32TB RDM and 3 -  8TB LUNS.  Equals 56TB +/- Plenty of space on the EVA –  56TB +/- , LUNS are Thick provisioned and Thin provisioned on the VM.

Yes I know RDM..BLAH .. but it's all they had before I came on-board.

Attempted to add another HD with a presented 8tb LUN yet only 1020.00MEG can be used.

I thought 5.5 VMFS 5 we were allowed 32 extents up to 64TB ?? 

Steps done so far.

1. Deleted and re-presented the LUN in Command View
2. Deleted and re-added storage in VMware.

Nothing changes on the amount of space I can use. 1020.00MEG

Any other checks I can do?

Thanks

Michael