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AP-SDMxxxxXPANS-HTX

8

© 2011 Apacer Technology Inc.

Rev. 1.1

3.5

S.M.A.R.T. Technology

S.M.A.R.T. is an acronym for Self-Monitoring, Analysis and Reporting Technology, an open standard allowing

disk drives to automatically monitor their own health and report potential problems. It protects the user from

unscheduled downtime by monitoring and storing critical drive performance and calibration parameters. Ideally,

this should allow taking proactive actions to prevent impending drive failure.

Apacer SDM uses the standard SMART command B0h to read data from the drive for SMART feature as the

SATA Rev. 2.6 ATA/ATAPI-7 specifications. Based on the SFF-8035i Rev. 2.0 specifications, Apacer SMART

defines 3 vendor-specified SMART Attribute IDs (E5h, EAh-EBh, and E8h) in the SDM. They represent Flash

ID, maximum erase count, average erase count, good block count, free-list block count, and firmware version

information. When the Apacer SMART Utility running on the host, it analyzes and reports the disk status to the

host before the SDM is in critical condition.