I've recently run into a struggle with my raid array running dangerously low on space. I decided the best course of action would be to expand it--and everything has gone well so far.
The original configuration:
4x 146GB HDDs in Raid 5 -- 1 Virtual Disk (408.38 GB)
5x 1TB HDDs in Raid 5 -- New drive acting as a Hot Spare -- 1 Virtual Disk (408.38GB)
I'm now trying to find the best way to expand this disk to use the newly attained space on the RAID. OMSA shows the drives (I actually used OMSA to replace the member disks) to each have some 800 GB of space usable for the drive. I can't, however, figure out how to expand the drives themselves. I haven't tried going into the RAID Controller BIOS because I keep seeing information strewn about the internet suggesting I can do it via OMSA.
Going into the "Reconfigure" menu, and selecting the current 4 drives only leaves me the option of "RAID-0" with a 544GB virtual drive.
It's also come to my attention that booting a drive larger than 2 TB seems to be out of the question without UEFI, if someone could just double confirm that for me I would appreciate it.
Is what I'm looking to do possible?