A nonpartitioned page set. A simple page set initially consists of a single data set (page set piece). If that data set is extended to 2 gigabytes, another data set is created, and so on up to a total of 32 data sets. The data sets are considered to be a single contiguous linear address space that contains a maximum of 64 gigabytes. Data is stored in the next available location within this address space without regard to any partitioning scheme.