10.9.5 Command Table

This command table shows the drive’s response to commands when the Security Function is enabled.

Table 10.9-1 Security mode command actions

Command

Locked mode

Unlocked mode

Frozen mode

CHECK POWER MODE

O

O

O

EXECUTE DEVICE DIAGNOSTICS

O

O

O

DEVICE CONFIGRATION

X

O

O

DOWNLOAD MICROCODE

O

O

O

FLUSH CACHE (EXT)

X

O

O

FORMAT TRACK

X

O

O

IDENTIFY DEVICE

O

O

O

IDLE

O

O

O

IDLE IMMEDIATE

O

O

O

INITIALIZE DEVICE PARAMETERS

O

O

O

NOP

O

O

O

READ BUFFER

O

O

O

READ DMA (EXT)

X

O

O

READ MULTIPLE (EXT)

X

O

O

READ NATIVE MAX ADDRESS (EXT)

O

O

O

READ SECTORS (EXT)

X

O

O

READ SENSE DATA

O

O

O

READ VERIFY (EXT)

X

O

O

RECALIBRATE

O

O

O

SECURITY DISABLE PASSWORD

X

O

X

SECURITY ERASE PREPARE

O

O

O

SECURITY ERASE UNIT

O

O

X

SECURITY FREEZE LOCK

X

O

O

SECURITY SET PASSWORD

X

O

X

SECURITY UNLOCK

O

O

X

SEEK

O

O

O

SET FEATURES

O

O

O

SET MAX (EXT)

X

O

O

SET MULTIPLE MODE

O

O

O

SLEEP

O

O

O

SMART

O

O

O

STANDBY

O

O

O

STANDBY IMMEDIATE

O

O

O

WRITE BUFFER

O

O

O

WRITE DMA (EXT)

X

O

O

WRITE MULTIPLE (EXT)

X

O

O

WRITE SECTORS (EXT)

X

O

O

WRITE VERIFY

X

O

O

O: Drive executes command normally

X: Drive rejects command with an Aborted command error

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