Actually, 2. is incorrect. From the z/OS 1.7 WLM Planning book:
"IMPORTANT: If you enable dynamic alias management, you must also enable I/O priority management. So you need to specify yes for both of these options on the panel. If I/O priority management is set to no, you will get only the efficiency part of dynamic alias management and not the goal-oriented management. This means that WLM will make alias moves that minimize overall IOS queueing, but these moves will not take service class goals into
consideration." Bob Ted MacNEIL wrote:
Do you have I/O Priority Management turned on? It seems basic, but without it two things happen: 1. Execution Velocity is calculated with only CPU values. 2. PAV is not dynamic.
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