This plugin is exceptionally nice, thank you so much for making it available. It offers so much more information than what was available via SNMP, even via the FCMGMT MIB in the experimental tree (that one basically offered all the sensors + a general “everything ok?” flag, but nothing on pools or the individual drives).
One thing I’d be glad to have is the controller firmware version. Any chance you could add that somewhere (assuming the API provides a way to query that information)?