The root aggregate is configured by the factory; you should not change it. However, you can use the data partitions in a few different configurations, depending on your requirements.
The following diagram shows one way to configure the partitions for an active-passive configuration with 12 partitioned disks. There are two root aggregates, one for each node, composed of the small partitions. Each root aggregate has a spare partition. There is just one RAID-DP data aggregate, with two parity disk partitions and one spare partition.
The following diagram shows one way to configure the partitions for an active-active configuration with 12 partitioned disks. In this case, there are two RAID-DP data aggregates, each with their own data partitions, parity partitions, and spares. Note that each disk is allocated to only one node. This is a best practice that prevents the loss of a single disk from affecting both nodes.
The disks used for data, parity, and spare partitions might not be exactly as shown in these diagrams. For example, the parity partitions might not always align on the same disk.