With IBM’s pervasive encryption technology on their z14 and z15 mainframes, you can transparently encrypt data sets and Coupling Facility (CF) structures at low cost on z/OS. While this is an attractive feature, exploiting pervasive encryption is not as simple as flipping a switch. Mainframe shops should estimate the system resources needed to enable this support; this takes a detailed analysis of the systems’ SMF data. Fortunately, much of the process is automated by IBM Z Batch Network Analyzer (zBNA), a free download provided by IBM.
zBNA is a Java-based Windows application which analyzes SMF data and estimates effects of several IBM technologies, such as pervasive encryption, zEDC compression, and zHyperLink on your workloads.