Putting frequently used data sets on fast devices

You can improve performance by assigning frequently used data sets to faster disk devices.

To make the best use of your disk devices:

• Assign the most frequently used data sets to the faster disk devices at your disposal.
• For partitioned table spaces, you might choose to have some partitions on faster devices than other partitions.
  Placing frequently used data sets on fast disk devices also improves performance for nonpartitioned table spaces.
• Consider partitioning any nonpartitioned table spaces that have excessive I/O contention at the data set level.