CFast 2A-M
APCFAxxxGA2AD-ATM
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© 2015 Apacer Technology Inc. Rev. 1.0
5.2 S.M.A.R.T.
S.M.A.R.T. is an abbreviation for Self-Monitoring, Analysis and Reporting Technology, a self-monitoring
system that provides indicators of drive health as well as potential disk problems. It serves as a warning
for users from unscheduled downtime by monitoring and displaying critical drive information. Ideally, this
should allow taking proactive actions to prevent drive failure and make use of S.M.A.R.T. information for
future product development reference.
Apacer devices use the standard SMART command B0h to read data out from the drive to activate our
S.M.A.R.T. feature that complies with the ATA/ATAPI specifications. S.M.A.R.T. Attribute IDs shall
include initial bad block count, total later bad block count, maximum erase count, average erase count,
power on hours and power cycle. When the S.M.A.R.T. Utility running on the host, it analyzes and reports
the disk status to the host before the device reaches in critical condition.
Note: attribute IDs may vary from product models due to various solution design and supporting capabilities.
Apacer memory products come with S.M.A.R.T. commands and subcommands for users to obtain
information of drive status and to predict potential drive failures. Users can take advantage of the
following commands/subcommands to monitor the health of the drive.
READ ATTRIBUTE THRESHOLDS
Enable/Disable Attribute Autosave
Execute Off-line Immediate
General SMART attribute structure
*Byte 5: LSB
SMART attribute ID list
Total later bad block count
SSD Protect Mode (vendor specific)
Unexpected Power Loss Count