The desc ties this to the redundancy property of a UCS PsuControl object. Redundancy is the administrator-configured target redundancy mode for this chassis's power supplies — for example non-redundant, N+1, or grid redundant — which is the setting operState is actually measured against to decide whether the chassis is currently meeting its intended protection level. Example: setting redundancy to 'grid' on a chassis with dual power feeds means UCS Manager expects each feed to independently support full load, and will flag operState accordingly if that expectation isn't met.