I am repurposing an old AFF8080 (and a small SSD shelf) as a test system. I created the cluster, set up networking, and was about to create data aggregates when I noticed root-data-data partitioning was automatically configured. The problem is I want to do old-school individual physical disks for root and data aggregates. Why? Because I expect a couple of disks to fail eventually, but can't replace them on this box. When they fail I'll just remove the disk and have one less disk. Not sure how root-data-data works exactly, but I'd expect that I can only have a couple of disks fail before it starts having issues.
On top of that, even if I were keeping root-data-data, somehow the assignments are screwy with only 4 disks assigned to one node and 20 to the other. Either way, I need to reconfigure the disks.
I cannot find anything that spells out how to disable root-data-data. Or ... if there's a way to leave it enabled but exclude a few physical disks (for my scenario of removing failed disks), that would work too. Any suggestions?