Error Codes - Western Digital Ultrastar DC HC310 Specifications

9.21.15 Error Codes

All error codes are compliant with the TCG Core specification and SIIF, except in the following case:
 The maximum sessions allowed at any single time is 1. When a session is active and a new session is
requested, the drive answers the host with SP_BUSY, instead of NO_SESSIONS_AVAILABLE.
9.21.16 Life Cycle model
A Life Cycle model for TCG is able to combine TCG and BDE (with ATA security feature) features in a single code
and to switch back and forth between TCG and BDE modes. The Life Cycle model based on TCG Core specification
[1] and TCG Opal SSC specification [4] is applied to TCG Enterprise.
9.21.16.1 Switching between TCG Enterprise and BDE Modes
The switching feature is managed by the Life Cycle model.
TCG / BDE combined code switches back and forth between TCG Enterprise mode and BDE mode by invoking TCG
Method (Activate / Revert). Switching from BDE mode to TCG Enterprise mode is executed by "Activate method with
SID". And switching from TCG Enterprise mode to BDE mode is executed by "Revert method with SID". AdminSP is
working even if the drive is under BDE mode, and LockingSP is enabled when the drive is under TCG mode.
Activate method
Revert method
Host can execute Activate and Revert methods like other TCG methods.
Both Activate and Revert methods initialize TCG setting.
When the TCG / BDE combined drive is switched to another mode, it regenerates Encryption Key. That is, encrypted
user data becomes to garbage data.
9.21.16.2 ATA Security Feature Management
Command execution for ATA security feature is corresponded to TCG Life Cycle model (active or inactive), and for
Trusted Receive command, Trusted Send command and those subcommands are depended on ATA security status.
When TCG Enterprise is activated, the ATA security feature set is the same as not supported. And when the ATA
security feature set is enabled, TCG Enterprise cannot be activated.
The values to set to Identify Device information are modified corresponding to ATA security s tatus and TCG Life
Cycle model.
9.21.17 Customer Specific Requirements
This specification does not cover customer-specific requirements.
by the customer to WDC in the form of a customer-specification document.
BDE  TCG Enterprise
BDE  TCG Enterprise
Western Digital Hard Disk Drive OEM Specification
Customer-specific requirements are submitted
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