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10.9.3 Security mode operation from power-on
In locked mode, the drive rejects media access commands until a SECURITY UNLOCK command is
successfully completed.
Power-on
Locked mode
UNLOCK ERASE Media access Non-media
PREPARE access
No
Password ERASE Reject
match? UNIT Command Execute
Command
Yes
Unit erased
Unlock
mode
Lock function disabled
Normal operation, all
commands are available
FREEZE LOCK
Normal operation,
Frozen mode commands
are available
Figure 4 Password set security mode power-on flow