Applies to ONTAP 9.14.1P6 ADP (Advanced Drive Partitioning) According to Fusion(fusion.netapp.com) and HWU(hwu.netapp.com), if the total internal disk count is 10 for A150 HA cluster, then the root ag...Applies to ONTAP 9.14.1P6 ADP (Advanced Drive Partitioning) According to Fusion(fusion.netapp.com) and HWU(hwu.netapp.com), if the total internal disk count is 10 for A150 HA cluster, then the root aggregate of each node will select 5 partitioned disks(P3): 2 for parity disks, 2 for data disks, and remain 1 will be used as a spare disk. However, when creating partitioned disks via Boot menu > 9 > 9a > 9b, ONTAP automatically creates the root aggregate with 2 partitioned disks and 3 data disks.