“You cannot solve a problem with the same kind of thinking that created it.”
— Albert Einstein
This chapter focuses on the requirements to keep your z/VM systems updated to ensure full functionality, optimal utility, security, and the elimination of known problems. The process of ordering and applying z/VM Service is described.
The full details are provided to apply the two main types of service:
•Recommended service upgrade (RSU), which is analogous to a service pack
•Program temporary fix (PTF), which is analogous to a bug fix ...