IBM IC35L040AVVN07-0 - 40GB IDE Deskstar 120GXP 7200RPM UATA-100..., Specifications

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9.8.4.4 User Password Lost
If the User Password is forgotten and High level security is set, the system user cannot access any data.
However the device can be unlocked using the Master Password.
If a system user forgets the User Password and Maximum security level is set, data access is impossible.
However the device can be unlocked using the Security Erase Unit command to unlock the device and
erase all user data with the Master Password.
User Password Lost
LEVEL ? High
Maximum
Erase Prepare Command
Erase Unit Command
with Master Password
Normal operation but data lost
Unlock EMD with Master Password
Normal operation
Figure 82. Password Lost
9.8.4.5 Attempt limit for SECURITY UNLOCK command
The SECURITY UNLOCK command has an attempt limit. The purpose of this attempt limit is to prevent
someone from attempting to unlock the drive by using various passwords multiple times.
The device counts the password mismatch. If the password does not match, the device counts it without
distinguishing the Master password and the User password. If the count reaches 5, EXPIRE bit (bit 4) of
Word 128 in Identify Device information is set and the SECURITY ERASE UNIT command and the
SECURITY UNLOCK command are then aborted until a hard reset or a power off. The count and EXPIRE
bit are cleared after a power-on reset or a hard reset.
Deskstar 120GXP hard disk drive specifications
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