New HDD reading 1.3TB instead of 8TB

I work at a very small company (8 people) and was given the task to add an HDD to our server to do incremental backups. We bought a new 8TB IronWolf HDD but after installation the server computer can only recognise about 1.3TB. I am not at all experienced with such systems, so I hope you guys can …

Windows 2008 VPS via New HDD reading 1.3TB instead of 8TB.