The Sequential Data Striping feature can reduce the time required to read and write your DFSORT input and output data sets. We recommend using sequential data striping for your very large DFSORT input and output data sets as a way to improve elapsed time.

Features such as compression, extended addressability (for VSAM), increased extent and volume support, and space constraint relief options assist in managing the space requirements of very large data sets.

If you decide to use compression, realize that there is a CPU cost which could outweigh the I/O performance benefits. Although compression can be used to improve disk storage capacity, the impact to CPU usage and elapsed time should be evaluated in your environment.

Consult with your storage administrator to learn how these features can be exploited in your environment.