User Manual

SCSI Commands Reference Manual, Rev. J 189

www.seagate.com Direct Access Block commands (SPC-5 and SBC-4)

3.35 REPORT SUPPORTED TASK MANAGEMENT FUNCTIONS commands

The REPORT SUPPORTED TASK MANAGEMENT FUNCTIONS command (see table 159) requests the device server to return on task

management functions (see SAM-5) the addressed logical unit supports. This command uses the MAINTENANCE IN CDB format

(see

SPC-5).

OPERATION CODE field

The OPERATION CODE field shall be set as shown in table 159 for the REPORT SUPPORTED TASK MANAGEMENT FUNCTIONS command.

SERVICE ACTION field

The SERVICE ACTION field shall be set as shown in table 159 for the REPORT SUPPORTED TASK MANAGEMENT FUNCTIONS command.

REPD bit

1 A return extended parameter data (REPD) bit set to one specifies that the task management timeout information shall be included in the

parameter data that is returned.

0 A REPD bit set to zero specifies that the task management timeout information shall not be returned.

The format of the parameter data for the REPORT SUPPORTED TASK MANAGEMENT FUNCTIONS command depends on the value

of the REPD bit as follows:

if the REPD bit is set to zero, the REPORT SUPPORTED TASK MANAGEMENT FUNCTION parameter data returned is shown in table 160;

and

1 if the REPD bit is set to one, the REPORT SUPPORTED TASK MANAGEMENT FUNCTION parameter data returned is shown in table 161.

ALLOCATION LENGTH field

The ALLOCATION LENGTH field is defined in 2.2.6. The allocation length should be at least four.

CONTROL byte

The CONTROL byte is defined in Clause 2.2.7.

Table 159 REPORT SUPPORTED TASK MANAGEMENT FUNCTIONS command

Bit

Byte

7 6 5 4 3 2 1 0

0 OPERATION CODE (A3h)

1 Reserved SERVICE ACTION (0Dh)

2 REPD

Reserved. . .

6 (MSB)

ALLOCATION LENGTH (4h or larger). . .

9 (LSB)

10 Reserved

11 CONTROL