Hi list, Any one knows how can I locate a HDD directly attached to mpt3sas, sas3ircu only supports LOCATE commd to locates driver installed in a disk enclosure, but not directly attached. I know microsemi/PMCs supports SGPIO interface to locate drive eg: Adp80xxapp sgpio 0 set 0 1 I searched in latest upstream mpt3sas code, didn't find such interface. Do I miss something? Thanks, Jack