A set of utilities for managing and diagnosing SCSI devices and devices supporting the SCSI command set (including SAS, SATA, and others). Allows performing low-level operations and obtaining detailed information about the configuration and status of storage devices.
Home pages:
sdparm - https://sg.danny.cz/sg/sdparm.html
sg3_utils - https://sg.danny.cz/sg/sg3_utils.html