Hitachi travelstar hds723020bla642 用户手册
7K200 SATA OEM Specification
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(*1) refer to Table 35 Command table for device lock operation on Page 62 and Table 36 Command table for
device lock operation - continued on Page 63.
device lock operation - continued on Page 63.
Figure 6 Usual Operation
12.9.1.3 User Password Lost
If the User Password is forgotten and High level security is set, the system user can’t 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.