Array Controller Redundancy Error. The following values are valid: other (1) Indicates that the instrument agent does not recognize the redundancy error of the controller. You may need to upgrade the instrument agent. noFailure (2) No failures have been detected. noRedundantController (3) No redundant controller is installed. differentHardware (4) The other controller indicates a different hardware model. noLink (5) An inter-controller link to the other controller could not be established. differentFirmware (6) The other controller indicates a different firmware version. differentCache (7) The other controller indicates a different cache size. otherCacheFailure (8) The other controller indicates a cache failure. noDrives (9) This controller cannot see any attached drives, but the other controller can. otherNoDrives (10) This controller can see the attached drives, but the other controller cannot. unsupportedDrives (11) One or more attached drives has been determined to be incapable of properly supporting redundant controller operation. expandInProgress (12) Expand operation in progress. Redundant operation not supported until expand operation is complete.