ATA Flash Drive 255

AP-FD25B20AxxxxxS-xxx

5.2 Intelligent Power Failure Recovery

The Low Power Detection on the controller initiates cached data saving before the power supply to the

device is too low. This feature prevents the device from crash and ensures data integrity during an

unexpected blackout. Once power was failure before cached data writing back into flash, data in the

cache will lost. The next time the power is on, the controller will check these fragmented data segment,

and, if necessary, replace them with old data kept in flash until programmed successfully.

5.3 Enhanced Security Level

5.3.1 ATA Secure Erase

Accomplished by the Secure Erase (SE) command, which added to the open ANSI standards that control

disk drives, “ATA Secure Erase” is built into the disk drive itself and thus far less susceptible to malicious

software attacks than external software utilities. It is a positive easy-to-use data destroy command,

amounting to electronic data shredding. Executing the command causes a drive to internally completely

erase all possible user data. This command is carried out within disk drives, so no additional software is

required. Once executed, neither data nor the erase counter on the device would be recoverable, which

blurs the accuracy of device lifespan. The process to erase will not be stopped until finished while

encountering power failure, and will be continued when power is back on.

8

© 2011 Apacer Technology Inc.

Rev. 1.2