Hitachi HTS541010G9AT00 Specifications - Page 71
Security mode, Security level, Password, Master Password Revision Code
UPC - 000061425019
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Security Erase Prepare Security Erase Unit Security Freeze Lock Security Disable Password ('F3'h) ('F4'h) ('F5'h) ('F6'h) 10.9.1 Security mode The following security modes are provided: Device Locked Mode Device Unlocked Mode Device Frozen Mode The device disables media access commands after power on. Media access commands are enabled by either a Security Unlock command or a Security Erase Unit command. The device enables all commands. If a password is not set this mode is entered after power on, otherwise it is entered by a Security Unlock or a Security Erase Unit command. The device enables all commands except those which can update the device lock function, set/change password. The device enters this mode via a Security Freeze Lock command. It cannot quit this mode until power off. 10.9.2 Security level The following security levels are provided: High level security Maximum level security When the device lock function is enabled and the User Password is forgotten, the device can be unlocked via a Master Password. When the device lock function is enabled and the User Password is forgotten, then only the Master Password with a Security Erase Unit command can unlock the device. Then the user data is erased. 10.9.3 Password This function can have two types of passwords as described below. Master Password User Password When the Master Password is set, the device does NOT enable the Device Lock Function, and the device CANNOT be locked with the Master Password, but the Master Password can be used for unlocking the locked device. The User Password should be given or changed by a system user. When the User Password is set, the device enables the Device Lock Function, and then the device is locked on next power on reset. If Software Setting Preservation is disabled, the device is locked on COMRESET as well. The system manufacturer or dealer who intends to enable the device lock function for end users must set the master password even if only single level password protection is required. Otherwise, the default master password which is set by Hitachi Global Storage Technologies can unlock a device that is locked with a user password 10.9.4 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. Values 0000h and FFFFh are reserved. Travelstar 5K100 (Serial ATA) Hard Disk Drive Specification 59