IBM IC25N040ATCS04 - Travelstar 40 GB Hard Drive - 11.9.5.3 Operation from POR after User Password is Set

11.9.5.3 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
Command (*1) Command (*1)
Password
Erase Unit
Password
Match ?
Reject
Complete
Complete
Erase Unit
Lock function
Disable
Normal operation : All commands are available
Freeze Lock command
Enter Device Frozen mode
Normal Operation expect Set Password,
Disable Password, Erase Unit, Unlock commands.
Enter Device
Unlock mode
N
Y
N
Y
Erase Prepare Media Access Non-media Access
Match ?
(*1) — refers to the commands in Figure
66
, "Command table for device lock operation"
on 90 and 91.
Figure 64. Usual operation for POR
Travelstar 60GH & 40GN hard disk drive specifications
88