Hi, You can create arrays larger than 4TB, however the T300 can only boot to arrays 2TB or smaller due to the limitation of MBR and it does not support UEFI.  
Hello, I own a  Dell PowerEdge T300 server. The specification sheet  mentions the amount of 4TB as Maximum Internal Storage. Is this the limit for storage? Is the limitation a software issue or was it a hardware restriction of the time that the sheet was published? Is it possible to have a RAID5 with 4 x 2TB HDDs (Capacity 6TB) in this server? I would appreciate any thoughts on the subject. Thank you very much.
Maximum Internal Storage Dell PowerEdge T300