External Tape Library Redundancy Status. Redundancy status denotes the presence of internal redundant components such as fans, power supplies, etc. The library redundancy can be in one of the following states: other(1) The library redundancy status is unknown. notSupported(2) Indicates that the library cannot detect or report redundancy status. capable(3) Indicates that the library is capable of detecting and reporting redundant components but there are not enough redundant units installed to make redundancy active. notCapable(4) Indicates that the library is capable of detecting and reporting redundant components but there are no components that support redundancy. active(5) Indicates that the library is capable of detecting and reporting redundant components, there are enough redundant units installed, and redundancy is active.