Текст страницы
SCT Status Request
Once an SCT command has been issued, a status is reported in the ATA registers. This status indicates that the
command was accepted or that an error occurred. This ATA status return does not indicate successful completion
of the SCT actions. Some commands can take several minutes or even hours to execute. In this case, the host can
determine execution progress by requesting SCT status.
Log page E0h contains the status information. Reading log page E0h retrieves the status information. The SCT
status may be acquired any time that the host is allowing to send a command to the device. This command will not
change the power state of the drive, nor terminate any background activity, including any SCT command in
progress.
SCT Status Request Using SMART
Command Block Output Registers
Register
7 6 5 4 3 2 1
0
Feature
D5h
Sector Count
01h
Sector Number
E0h
Cylinder Low
4Fh
Cylinder High
C2h
Device/Head
-
-
- D -
-
-
-
Command
B0h
Table 56 Input Registers of SCT Status Request Using SMART
SCT Status Request Using Read Log Ext
Command Block Output Registers
Register
7 6 5 4 3 2 1 0
Feature
Current
Reserved
Previous
Reserved
Sector Count
Current
01h
Previous
00h
LBA Low
Current
E0h
Previous
Reserved
LBA Mid
Current
00h
Previous
00h
LBA High
Current
Reserved
Previous
Reserved
Device/Head
-
-
- D -
-
-
-
Command
2Fh
Table 57 Input Registers of SCT Status Request Using Read Log Ext
97
Western Digital Ultrastar DC HC310 SATA Product Manual