
This is especially could be important in case if the drive has some undocumented proprietary (vendor-specific) health indicators (S.M.A.R.T. The more measurement data (history) DriveDx has, the more accurate the results. The last one (measurements history) also could be a cause of different results on multiple computers for the same drive.

Temperature, vibration level or electrical noise conditions could affect the following health indicators (SMART attributes): Quality of data cables affects health indicator #199 “(UDMA) CRC Error Count”. Fluctuation of “Spin-Up Time” indicator usually means that drive have not enough power supply or has not optimal temperature conditions or both. However, most modern computers have the ability to stop a drive while the machine is already running as a means of energy conservation or noise reduction.

Spin-up generally occurs at the very beginning of the computer boot process. Health indicator “Spin-Up Time” reports average time (in milliseconds or seconds) of spindle spin-up (from 0 rpm to fully operational). In the case of HDDs: #3 “Spin-Up Time” is mostly affected by power supply health indicator. SSDs and especially HDDs could be sensitive to power supply level, and high performance 7200+ RPM HDDs could be very sensitive to power supply level. pre-failure state early detection - DriveDx supports 3 drive health statuses: Ok, Failing (pre-failure) and Failed.Some subset of HDD / SSD health indicators is related not only with HDD / SSD itself but also with hardware environment (computer, ports, cables, power supply, drive and ambient temperature and (sometimes even) electrical noise).


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status, but also analyzes the changes of all drive health indicators that are closely related to SSD or HDD failures (like SSD wear out / endurance, reallocated bad sectors, offline bad sectors, pending sectors, I/O errors and more) and alerts the user immediately if anything goes wrong. Unlike most drive utilities, DriveDx does not only monitor the drive’s built-in S.M.A.R.T. DriveDx is advanced drive health diagnostic and monitoring utility.
