113
Western Digital Hard Disk Drive OEM Specification
Command
Description
unlocked
Locked
Base Template
Mandatory
Set
Sets a value in a table
N/A - table operations.
Not related to
bands/data on drive.
N/A - table operations.
Not related to
bands/data on drive.
Get
Gets (reads) a value in a table
N/A - table operations.
Not related to
bands/data on drive.
N/A - table operations.
Not related to
bands/data on drive.
ParamCheck
LRC
TPer implements param check LRC (longitudinal
Redundancy Check) on get/set method calls
on PIN value
N/A
N/A
Next
Iterates over all the rows of a table. Method
requires user to specify "where" (row in table)
and a "count". If where not specified, 1st row
in table is used. For count not specified,
default is number of last row in table. Returns 0
or more row number/uidref pairs currently in use
in table, per parameters specified.
N/A - table operations.
Not related to
bands/data on drive.
N/A
– table operations.
Not related to
bands/data on drive.
Authenticate
Authenticate an authority within a session
(session must have successfully begun).
Must be authorized.
Must be authorized.
GetACL
Returns contents of access controls
association's ACL stored in Method Table.
The result is a list of UIDREFS to ACE objects.
N/A - table operations.
Not to do with
bands/data on drive.
N/A
– table operations.
Not related to
bands/data on drive.
Table 92 TCG Enterprise SSC Commands Behavior -4
Command
Description
unlocked
Locked
Locking
Template
Mandatory
Erase
Cryptographically erases user data in a specified LBA range
and resets the access control (locking) of that LBA range
Can erase if
authorized.
Generates error.
Table 93 TCG Enterprise SSC Commands Behavior -5
Command
Description
TCG Inactivated
TCG Activated
Admin
Template
Customer specific
Activate
TCG Enterprise feature is activated form inactive mode
(BDE mode) to activation mode.
Note: Command is aborted at locked of ATA Security
Feature, and command is received at unlocked ATA
Security Feature but Activation is prohibited
Must be authorized
when ATA Security
Feature is disabled
Command received
but Activation is
prohibited
Revert
TCG Enterprise feature is reverted form activation mode to
inactive mode(BDE mode)
Note: Command is aborted at locked of ATA Security
Feature, and command is received at unlocked ATA
Security Feature but Activation is prohibited
Command received
but Revert is
prohibited
Can Revert if must
be authorized
Table 94 TCG Enterprise SSC Commands Behavior -6
