IBM DTNA-22160 Hard Drive Specifications - Page 75
Operation from POR after User Password is set
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10.7.4.3 Operation from POR after User Password is set When Device Lock Function is enabled, the device rejects media access command until an Security Unlock command is successfully completed. POR > Device Locked mode < V Unlock CMD Password Match ? N Y V Enter Device Unlock mode V Erase Prepare Erase Unit Password Match ? N Y Complete Erase Unit V Lock function Disable V V Media access Non media access command (*1) command (*1) Reject V Complete V V > Normal operation : All commands are available V Freeze Lock command V Enter Device Frozen mode Normal Operation except Set Password, Disable Password, Erase Unit, Unlock commands. (*1) refer to c in Figure 43 on page 69 Figure 41. Usually Operation General Operation Descriptions 67
10.7.4.3
Operation from POR after User Password is set
When Device Lock Function is enabled, the device rejects media access command until an Security Unlock
command is successfully completed.
POR
>
Device Locked mode
<
V
V
V
V
Unlock CMD
Erase Prepare
Media access
Non media access
command
(*1)
command
(*1)
Password
Erase Unit
Match ?
Password
N
Match ?
N
Y
Y
Complete
Reject
Complete
Erase Unit
V
V
V
V
Enter Device
Lock function
Unlock mode
Disable
V
> Normal operation
: All commands are available
V
Freeze Lock command
V
Enter Device Frozen mode
Normal Operation except Set Password,
Disable Password, Erase Unit, Unlock commands.
(*1) refer to c in Figure 43 on page 69
Figure 41. Usually Operation
General Operation Descriptions
67