I have 4 disks: 2 x 1TB and 2 x 4TB.
In the RHEL 7.4 installation disk partitioning section, I can create a single Volume Group over all 4 disks and set RAID level: RAID 1 (Redundancy)
This theoretically gives me +- 5TB of available space in a single volume group - but I have no idea how the RAID 1 mirror is applied.
To me it makes conceptual sense to have the 2 x 1Tb drives mirror each other and and the 2 x 4Tb drives mirror each other and define a volume group over the mirrored pairs, however there doesn't seem to be any way that I can see to "tell" the RHEL GUI how I want the mirror configured within the volume group.
My question is: Is there something I'm missing withing the GUI, and should I even be concerned about pairing "like" disks; or does it truly make no difference ie. does RHEL 7 handle the RAID aspect transparently within the volume group?
thanks so much!