Serial ATA Flash Drive
APMxxxGNEAN-4ETM1XX
8
© 2017 Apacer Technology Inc. Rev. 1.5
2. Software Interface
2.1 Command Set
Table 2-1 summarizes the ATA commands supported by SM220-300B.
Table 2-1 Command Set
Initialize Device Parameters
Security Disable Password
2.2 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.
