Array Controller Redundancy Type. The following values are valid: other (1) Indicates that the instrument agent does not recognize the redundancy type of the controller. You may need to upgrade the instrument agent. notRedundant (2) The array controller is not in a redundant configuration. driverDuplexing (3) The array controller is using a controller duplexing algorithm implemented exclusively in the operating system driver. fwActiveStandby (4) The array controller is using an active/standby algorithm implemented in the controller firmware and the operating system driver. fwPrimarySecondary (5) The array controller is using a primary/secondary algorithm implemented in the controller firmware and the operating system driver. fwActiveActive (6) The array controller is using an active/active algorithm implemented in the controller firmware.