PCTechGuide 's page on SMART ( 2003 ) comments that the technology has gone through three phases : An early hard disk monitoring technology was introduced by IBM in 1992 in its IBM 9337 Disk Arrays for AS\/400 servers using IBM 0662 SCSI-2 disk drives .
PCTechGuide 's page on S.M.A.R.T. commented in 2003 that the technology had gone through three phases : The industry 's first hard disk monitoring technology was introduced by IBM in 1992 in their IBM 9337 Disk Arrays for AS\/400 servers using IBM 0662 SCSI-2 disk drives .