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A Small Step For RMF, A Giant Leap For Self-Documenting Systems
I mentioned APAR OA21140 before - here . It's quite an old APAR and so it will (in all likelihood) be on your systems. I'd like to draw your attention to a subtle 1-byte field in the SMF 74 Subtype 4 (Coupling Facility Activity) record: R744FLPN. It's the partition number for the coupling facility. (If you've seen any one of several of my presentations I'll've talked about this field.) Here's... [More]
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Channel Performance Reporting
Our channel reporting has consisted forever of a single chart. Before I tell you what the chart looked like I'll hazard that your channel reporting was about as bad. :-)
See, it's not something people tend to put much effort into.
Our one-chart report basically listed the top channels, from the perspective of the z/OS system under study, ranked by total channel utilisation descending - as a... [More]
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