Troubleshooting 129Controller LED IndicatorsThe external SAS ports on the PERC 6/E adapter have a port status LEDper x4 SAS port. This bi-color LED displays the status of any external SASport. The LED indicates whether all links are functional or only partial linksare functional.Table 7-9 describes the patterns for the PERC 6/E adapter port status.smartd[smartd[2338]Device: /dev/sda, BadIEC (SMART) mode page,err=-5, skip devicesmartd[2338] Unable toregister SCSI device/dev/sda at line 1 offile /etc/smartd.confThis is a known issue. An unsupportedcommand is entered through the userapplication. User applications attempt to directCommand Descriptor Blocks to RAID volumes.The error message does not effect the featurefunctionality.The Mode Sense/Select command is supportedby firmware on the controller. However, theLinux kernel daemon issues the command tothe virtual disk instead of to the driver IOCTLnode. This action is not supported.Table 7-9. LED Behavior PatternsPort State LED StatePower-on state OffReset state OffAll links in port connected Green light onOne or more links are not connected (applicable only in wide portconfigurations)Amber light onAll links in the port are disconnected or the cable is disconnected OffTable 7-8. Linux Operating System Errors (continued)Error Message Suggested Solution