Adding hard disk for Proxmox Storage

SSH into the Proxmox box:

I had to go in with fdisk and clean up my disk before I could add it, I wanted the entire disk visible to proxmox so I cleaned off any of the remaining partitions. You can find out using fdisk -l as you can see here, I needed /dev/sda. Then, you can create the physical volume:

 

Then create the volume group:

 

The storage is then present: