I have a Netapp FAS2240-4 with Release 8.2.4P4 7-Mode. It has two controller boards, one disk shelf an a total of 48 disk (24x2TB in the FAS and 24x1TB in the shelf). It is out of support, so I think I can not upgrade Ontap. I used to have the disks configured like this:
Now I would like to use a configuration like this:
I bootet into maintenance mode and changed the owner of all disks to Node 1. But now Node 2 does not boot, because it does not have any disks. The status of the aggregates is like this:
aggr status -v Aggr State Status Options aggr0 online raid_dp, aggr root, diskroot, nosnap=off, raidtype=raid_dp, 64-bit raidsize=11, ignore_inconsistent=off, snapmirrored=off, resyncsnaptime=60, fs_size_fixed=off, lost_write_protect=on, ha_policy=cfo, hybrid_enabled=off, percent_snapshot_space=0%, free_space_realloc=off
Plex /aggr0/plex0: online, normal, active RAID group /aggr0/plex0/rg0: normal, block checksums RAID group /aggr0/plex0/rg1: normal, block checksums
you don't need to do it that way. You could have easily torn down the system, and 7-mode is software disk ownership, so once you tear down your data aggregate on the other node, you will be left with just aggr0, which will be your 3 disk raid-dp or if you choose 2 disk raid4 vol for the OS.
If your secondary node only had one aggregate than you need to rebuild the entire system the way you want it.
The picture below looks like partition from ADP, which is cDOT only