Technical information

HGST Ultrastar C15K600 Hard Disk Drive Specification
347
21.14
Locked and Unlocked Behavior
21.14.1
T10 SCSI commands
The table below describes how basic T10 SCSI commands behave on encryption drives in the locked and unlocked
states.
Table 297 T10 SCSI Commands Behavior Table (part 1 of 2)
Command
Unlocked
Locked
FORMAT UNIT (04) OEM Command can’t be executed when locked. Must unlock with
MSID or password, before formatting.
INQUIRY (12)
OEM
OEM
LOG SELECT (4C) OEM OEM
LOG SENSE (4D)
OEM
OEM-no access to customer data, will get some log information.
MODE SELECT (15) OEM OEM
MODE SELECT (55) OEM OEM
MODE SENSE (1A) OEM OEM
MODE SENSE (5A) OEM OEM
PERSISTENT RESERVE IN (5E) OEM OEM
PERSISTENT RESERVE IN (5F)
OEM
OEM
PRE-FETCH (34)
OEM
MSID only - limits DRAM accessibility. This is a read function.
READ (6) - (08)
OEM
Ent_A authorized only
READ (10) - (28)
OEM
Ent_A authorized only
READ (12) - (A8)
OEM
Ent_A authorized only
READ (16) - (88) OEM Ent_A authorized only
READ (32) - (7F/09) OEM Ent_A authorized only
READ BUFFER (3C) OEM OEM. Sensitive data cannot be snap shorted from DRAM.
READ CAPACITY (10) - (25) OEM OEM
READ CAPACITY (16) (9E/10) OEM OEM
READ DEFECT DATA (37) OEM OEM
READ DEFECT DATA (B7)
OEM
OEM
READ LONG (3E)
OEM
Ent_A authorized only
REASSIGN BLOCKS (07)
OEM
Command access denied if the effective range is locked.
RECEIVE DIAGNOSTICS
RESULTS (1C)
OEM
OEM
RELEASE (17) OEM OEM
RELEASE (57) OEM OEM
REPORT DEVICE IDENTIFIER
(A3/05)
OEM OEM.
REPORT LUNS (A0) OEM OEM.
REPORT SUPPORTED
OPERATION CODES (A3/0C)
OEM
OEM.
REPORT SUPPORTED TASK
MANAGEMENT FUNCTIONS
(A3/0D)
OEM
OEM
REQUEST SENSE (03)
OEM
OEM
RESERVE (16)
OEM
OEM
RESERVE (56)
OEM
OEM
REZERO UNIT (01)
OEM
OEM
SEEK (6) - (0B) OEM OEM
SEEK (10) - (2B) OEM OEM