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

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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
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