it_tech

think I've sorted it now, instead of using the dell openmange disk and installing windows through that i used the lifecycle option that's built in. Specified i wanted to install via uefi and windows now allows me to use all the space.

Using a hardware raid, perc 310 controller. I've installed it once and didn't have any options on the right click with in disk management.

I have a brand new Dell T420 with 5 1TB hard drives. I've added 4 of those into a RAID 5 with the 5th being a hot spare. The problem I have is that after going through the open manage disc, then installing the OS it will only recognise 2TB of the space, not the 2.8TB. I have a feeling I should be using GPT instead of a MBR, trouble is i have no idea where to go from here. any suggestions? I'd like a 300GB OS partition and then the rest as a data one.