Dell powerede R620 server virtual disk

Hi

I have searching for hours on virtual disk limit for dell R620 server 

Currently we have Dell R620 ( PERC H310 Mini ) with 1 virtual disk ( 2 physical drives containing OS )

I wanted to purchase 6 new HDD and add them as second virtual disk to the server

Can we have more that one virtual disk on Dell R620 ?

Where can I find the dell documentation ?

Please help

Thank you in advance

Jay