Attribute ID: 230 (0xE6)
Hard drives, supporting this attribute
Samsung, Seagate, IBM (Hitachi), Fujitsu (not all models), Maxtor, Western Digital (not all models)
GMR Head Amplitude S.M.A.R.T. parameter indicates a head moving distances between operations.
This parameter is considered informational by the most hardware vendors. Although degradation of this parameter can be an indicator of drive aging and/or potential electromechanical problems, it does not directly indicate imminent drive failure. Regular backup is recommended. Pay closer attention to other parameters and overall drive health.
See also: S.M.A.R.T. Monitoring.