Lots of RAID solutions are sadly not GPT aware so they are not very helpful.
If your board cannot recognize a bunch of 3TB disks in an array, then look for a BIOS update
Sorry I might not have been 100% clear here:
I can see and use the five 3TB drives, since the current version of my motherboard BIOS and Intel RST supports AHCI = passthru of the disc from Intel RST to operating system.
However, since Intel RST does not support RAID of any 3TB discs - according to the information provided by Intel - then that is what I would like to know when it might be available. I need to decide between a software solution, or Intel RST - and Intel is currently not even an option...
I have the same (similar?) issue. Just purchased two 3TB WD greens (WD30EZRX) and connected them to my X58-based ASUS P6T ("plain", as it had more of what I needed than "Deluxe"). Upgraded BIOS to 1408 to gain BIOS support for >2.2TB drives, but option ROM is still too old (shows something like 746GB). So I gave up on the idea to use these as system drives. Loaded fresh Intel RST 10.6.0.1002 software (for 64-bit Windows 7 [Ultimate]). It shows all attached drives nicely:
But, when I attempt to create a volume (RAID1, but the same happens for any other RAID type as well) those are not listed (ports 1 and 2):
What is going on here? Can I create a RAID volume with these or not?