Understanding Potential Problem Areas

This chapter lists and describes some potential problems that might arise and what you can do to avoid them. Some of the topics that are discussed in this chapter were already discussed in previous chapters or in other documents. We chose to repeat them here because they are important topics that can cause serious problems if overlooked.

The Lock-Step method ensures that the active IOCDS file, the hardware system area (HSA), and z/VM are all using the same I/O configuration.