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Travelstar 5K160 (SATA) Hard Disk Drive Specification
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The system manufacturer/dealer who intends to enable the device lock function for the end users,
must set the master password even if only single level password protection is required. Otherwise, if
the User Password is forgotten then no one can unlock the device which is locked with the User
Password.
12.9.4 Master Password Revision Code
This Master Password Revision Code is set by Security Set Password command with the master
password. And this revision code field is returned in the Identify Device command word 92. The valid
revision codes are 0001h to FFFEh. The default value of Master Password Revision Code is FFFEh.
Value 0000h and FFFFh is reserved.
12.9.5 Operation example
12.9.5.1 Master Password setting
The system manufacturer/dealer can set a initial Master Password using the Security Set Password
command, without enabling the Device Lock Function.
12.9.5.2 User Password setting
When a User Password is set, the device will automatically enter lock mode the next time the device
is powered on.
Figure 11 Initial Setting
12.9.1.2 Operation from POR after User Password is set
When Device Lock Function is enabled, the device rejects media access command until a Security
Unlock command is successfully completed.