It doesn’t happen very often, but sometimes a patch to firmware for Power Systems is defective, and when it does happen, we like to point it out.
Defective PTFs happen fairly regularly with IBM i, as defective patches happen for other operating systems. Sometimes the effects of defective PTF patches are dramatic, sometimes they are just weird. Sometimes they are in between.
Both IBM i 7.4 and IBM i 7.5 have a defective patch in the firmware for Power10 systems, and to be super precise it affects machine types 9105-22A (Power S1022), 9105-22B (Power S1022s), 9105-41B (Power S1014), 9105-42A (Power …
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