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Revert methods initialize TCG setting and regenerates Encryption Key. That is, encrypted user data becomes to
garbage data.
Port Lock cannot be used in ISE mode. Set Method to Port Table will fail when ISE mode.
Level 0 Discovery reports 1 as LockingEnabled except SEC2/4/5/6.
StartSession with LockingSP is not allowed when SEC2/4/5/6.
After successful Authentication with EraseMaster or BandMasterN, Identify Device Data Word 128 changes to
0000h. This indicates that the ATA Security command is not available. After that, after successful PSID Revert,
Identify Device Data Word 128 changes to value indicating an ATA Security state (SEC1).
Level 0 Discovery always returns 1 as Locking Enabled. If it is SATA, Level 0 Discovery returns 0 as Locking
Enabled when SEC2/4/5/6.
When in ISE mode, ATA Security command is not allowed during TCG Session with AdminSP or LockingSP.
Block SID Authentication
If a Block SID Authentication command has been successfully executed, SID Authentication will be blocked. This
feature based on TCG Storage Feature Set: Block SID Authentication Specification Version 1.00 Published
Revision 1.00.
If Block SID Authentication is supported, Level 0 Discovery returns feature descriptor as Feature Code = 0402.
The Block SID Authentication command is delivered by the transport IF-SEND command. There is no IF-RECV
response to the Block SID Authentication command.
The Block SID Authentication command is defined as follows:
Command: IF_SENF
Protocol ID: 0x02
Transfer Length: Non-zero
ComID: 0x0005
Byte 0: Clear Events (0 or 1)
Bytes 1 to Transfer Length -1: Reserved (00)
Block SID Authentication state will be cleared by Power Cycle or Revert Method. If a Block SID Authentication
command issued with Clear Events = 1, Block SID Authentication state is also cleared by Hardware Reset.
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Western Digital Ultrastar DC HC310 SATA Product Manual