Dividing a table and storing it in multiple user RDAREAs is called table row partitioning. A table partitioned by rows is called a row-partitioned table.
The RDAREAs used to store a row-partitioned table must be on different disks.
You should employ table row partitioning in the following circumstances:
You define table row partitioning with the CREATE TABLE definition SQL statement. For details about how to define the table row partitioning, see 7.2 Creating a row partitioned table.