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10.21.14 Locked and Unlocked Behavior
10.21.14.1 ATA Commands behavior
The table below describes how basic ATA commands behave on encryption drives in the locked and unlocked states
by TCG Enterprise feature.
Table 77 Command table for TCG Enterprise device lock operation
Command
Locked Band
Unlocked Band
Notes
Check Power Mode
Executable
Executable
Configure Stream
Executable
Executable
Device Configuration Freeze Lock
Executable
Executable
Device Configuration Identify
Executable
Executable
Device Configuration Restore
Executable
Executable
Device Configuration Set
Executable
Executable
Download Microcode
*2
*2
Depend on DL port lock
Download Microcode DMA
*2
*2
Depend on DL port lock
Execute Device Diagnostic
Executable
Executable
Flush Cache
Executable
Executable
Flush Cache Ext
Executable
Executable
Get Physical Element Status
Executable
Executable
Identify Device
Executable
Executable
Idle
Executable
Executable
Idle Immediate
Executable
Executable
Initialize Device Parameters
Executable
Executable
NCQ Non-Data – Abort NCQ
Queue
Executable
Executable
NCQ Non-Data – Deadline
Handling
Executable
Executable
NCQ Non-Data – Set Features
Executable
Executable
Read Buffer
Executable
Executable
Read Buffer DMA
Executable
Executable
Read DMA
Command aborted
Executable
Read DMA Ext
Command aborted
Executable
Read FPDMA Queued
Command aborted
Executable
Read Log Ext
Executable
Executable
Read Log DMA Ext
Executable
Executable
Read Multiple
Command aborted
Executable
Read Multiple Ext
Command aborted
Executable
Read Native Max Address
Executable
Executable
Read Native Max Address Ext
Executable
Executable
Read Sector(s)
Command aborted
Executable
Read Sector(s) Ext
Command aborted
Executable
Read Stream DMA Ext
Command aborted
Executable
Read Stream Ext
Command aborted
Executable
Read Verify Sector(s)
Command aborted
Executable
Read Verify Sector(s) Ext
Command aborted
Executable
Recalibrate
Executable
Executable
Receive FPDMA Queued
Executable
Executable
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Hard Disk Drive Specification