In this chapter, I identify and show you how to tune your virtual memory subsystem. In contrast to other subsystems, there is a lot you can do to improve performance from a virtual memory perspective.
Before we get started, let me again state that, unless instructed otherwise, you should change only one parameter at a time. If you make multiple changes, you won't know precisely what caused the impact on performance. This point is particularly relevant to virtual memory.
Monitoring systems that must be compliant with the Payment Card Industry (PCI) Data Security Standard (DSS) can be done more efficiently with the help of SkyView's Policy Minder for AIX for IBM i and i5/OS. In the Webcast, Carol Woodbury, president and CTO of SkyView Partners, discusses the 12 sections of the AIX PCI DSS and explains how Policy Minder helps IT professionals set requirements and run reports to ensure standards are met.