Travelstar 80GN Hard Disk Drive Specification
149
Security Level
A zero indicates a High level, a one indicates a Maximum level. If the host sets the High level and the password is
forgotten then the Master Password can be used to unlock the device. If the host sets the Maximum level and the
user password is forgotten, only a Security Erase Prepare/Security Unit command can unlock the device and all
data will be lost.
Password
The 32 bytes are always significant in the text of the password.
Master Password Revision Code
The Revision Code field is set with Master password. If Identifier is User, the Revision Code is not set. The Revi-
sion Code field is returned in Identify Device word 92. The valid Revision Codes are 0000h to FFFDh. The Default
Master Password Revision Code is FFFEh. The code FFFFh is reserved.
The setting of the Identifier and Security level bits interact as follows:
Identifier = User / Security level = High
The password supplied with the command will be saved as the new user password. The security mode feature
(lock function) will be enabled from the next power on. The drive may then be unlocked by either the user
password or the previously set master password.
Identifier = Master / Security level = High
This combination will set a master password but will NOT enable the security mode feature (lock function).
Identifier = User / Security level = Maximum
The password supplied with the command will be saved as the new user password. The security mode feature
(lock function) will be enabled from the next power on. The drive may then be unlocked by only the user pass-
word. The master password previously set is still stored in the drive but may NOT be used to unlock the
device.
Identifier = Master / Security level = Maximum
This combination will set a master password but will NOT enable the security mode feature (lock function).
Summary of Contents for IC25N020ATMR04
Page 4: ......
Page 14: ......
Page 20: ...Travelstar 80GN Hard Disk Drive Specification 10 ...
Page 21: ...Travelstar 80GN Hard Disk Drive Specification 11 Part 1 Functional specification ...
Page 22: ...Travelstar 80GN Hard Disk Drive Specification 12 ...
Page 24: ...Travelstar 80GN Hard Disk Drive Specification 14 ...
Page 34: ...Travelstar 80GN Hard Disk Drive Specification 24 ...
Page 48: ...Travelstar 80GN Hard Disk Drive Specification 38 ...
Page 67: ...Travelstar 80GN Hard Disk Drive Specification 57 Part 2 Interface specification ...
Page 68: ...Travelstar 80GN Hard Disk Drive Specification 58 ...
Page 70: ...Travelstar 80GN Hard Disk Drive Specification 60 ...
Page 72: ...Travelstar 80GN Hard Disk Drive Specification 62 September 19 2003 10 28 am ...
Page 100: ...Travelstar 80GN Hard Disk Drive Specification 90 ...
Page 106: ...Travelstar 80GN Hard Disk Drive Specification page 96 ...
Page 131: ...Travelstar 80GN Hard Disk Drive Specification 121 ...
Page 202: ...Travelstar 80GN Hard Disk Drive Specification 192 ...
Page 209: ...Travelstar 80GN Hard Disk Drive Specification 199 ...
Page 210: ...Travelstar 80GN Hard Disk Drive Specification 200 ...