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10.5.4.3 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.
POR
Device Locked mode
Unlock CMD
Erase Prepare
Media access
Non-Media access
command (*1)
command (*1)
Reject
Complete
Password
Match ?
N
N
Erase Unit
Password
Match ?
Y
Y
Enter Device
Unlock mode
Complete
Erase Unit
Lock function
Disable
Normal operation : All commands are available
Freeze Lock command
Enter Device Frozen mode
Normal Operation except Set Password,
Disable Password, Erase Unit, Unlock commands.
(*1) Refer to 10.5.5 on the page.70
Figure 10 Usual Operation
68
Hard Disk Drive Specification