Update. I figured out why I was seeing different sizes and it was simple. When I created the RAID array it created 2TB of usable space but allocated 1TB as drive C and left another 1TB as unallocated. Kind of a Duh! moment, but at least I'm learning.
I'd like to get this all to be usable as a single 2TB volume, drive C.
I couldn't find anything in the manual that would help me and the only reference to what I want to do that I can find in the Help in RST says to go to Windows Disk Management and extend the volume. However that option in Disk Management is grayed out.
I'm guessing way to do this would be to update my latest backup, start over and recreate the array from scratch with no data, and then restore.
If anyone could give me any advice on how to proceed or hints on where to find more definitive information I'd really appreciate it.
Thank you, joe-intel. I appreciate the response. I which I knew what it meant. :-) GPT and MBR are not things I've encountered before. I will do some homework.
It is the boot volume BTW. It's not obvious to me that either Windows Disk Management or RST gives me the answer the info re GPT vs. MBR. I'll try to dig a bit though.
Please take into consideration that in order for an operating system to fully support storage devices that have capacities that exceed 2 terabytes (2 TB's), the device must be initialized by using the GUID partition table (GPT) * partitioning scheme.
Additionally if you intend to start the computer from one of these large disks, the system’s base firmware interface must use the Unified Extensible Firmware Interface (UEFI) * and not BIOS.
Thank you, Cesar. I'm clearly well over my head in this but I'll do my best to figure it out. (This all because HP claims the system it sold me is supported except for RST, although after 3 weeks they still cannot show me any documentation which excludes RST (or anything else for that matter). I'm quite frustrated (other phrases come to mind) with HP.) I really do appreciate that folks here are trying to guide me.
BTW, the drives are only 1TB. It's the combined RAID5 volume of 3x1TB that would yield 2TB usable. Nothing usable exceeds 2TB.
Does what you suggest still apply in that case?
In this particular case, as the whole volume will be 2TB's it is preferable to have a GPT partition set up in UEFI in order to ensure best performance and compatibility with your system.
Thanks, Cesar. You have no idea how much I appreciate your help (and also that from Joe-intel).
I have determined that my my drive (actually the set of 3 drives seen by Windows as 1) is UEFI/GPT.
So ... since what I want to do is combine the two 1TB partitions into a single 2TB I'm guessing that I had the right strategy initially, "... update my latest backup, start over and recreate the array from scratch with no data, and then restore".
Thanks yet again.
I hope you have succeeded.
I am sorry for coming back late, I just wanted to include these links in case they are needed: