The desc ties this to the operState property of a UCS PsuControl object. OperState is the actual current redundancy condition of this chassis's power supplies (e.g. fully redundant versus running non-redundant), which is the single most important PSU field for an admin assessing this chassis's exposure to a single power-supply or feed failure. Example: an operState of non-redundant on a chassis normally configured for N+1 tells an admin that chassis would lose power entirely if its one remaining active PSU or feed failed right now.