Active SMART supports S.M.A.R.T. on both IDE (ATA) and SCSI devices. (In order to monitor SCSI drives please use Active SMART SCSI version) But SCSI drives use another method of reporting their S.M.A.R.T. status, in concordance with S.M.A.R.T. implementation for IDE/ATA devices. They do not report detailed information about supported attributes and do not support reporting of detailed attributes statistics. SCSI drives report only overall S.M.A.R.T. status of the disk. Active SMART monitors this status and uses other drive health-status related features of SCSI drives to provide early notification about possible drive fail.