User Manual

SCSI Commands Reference Manual, Rev. J 221
www.seagate.com Direct Access Block commands (SPC-5 and SBC-4)
3.48 SET TIMESTAMP command
The SET TIMESTAMP command (see table 192) requests the device server to initialize a device clock (see SPC-5) if the SCSIP bit is
set to one in the Control Extension mode page (see 5.3.13). If the SCSIP bit is set to zero, the device server shall terminate the SET
TIMESTAMP command with CHECK CONDITION status, with the sense key set to ILLEGAL REQUEST, and the additional sense
code set to INVALID FIELD IN CDB. This command uses the MAINTENANCE OUT CDB format (see
SPC-5).
OPERATION CODE field
The OPERATION CODE field is defined in SPC-5 and shall be set as shown in table 276 for the SET TIMESTAMP command.
SERVICE ACTION field
The SERVICE ACTION field is defined in 2.2.2 and shall be set as shown in table 276 for the SET TIMESTAMP command.
PARAMETER LIST LENGTH field
The PARAMETER LIST LENGTH field specifies the length in bytes of the SET TIMESTAMP parameters that shall be transferred from the applica-
tion client to the device server. A parameter list length of zero indicates that no data shall be transferred, and that no change shall be made to
the timestamp.
CONTROL byte
The CONTROL byte is defined in Clause 2.2.7.
Table 192 SET TIMESTAMP command
Bit
Byte
7 6 5 4 3 2 1 0
0 OPERATION CODE (A4h)
1 Reserved SERVICE ACTION (0Fh)
2
Reserved. . .
5
6 (MSB)
PARAMETER LIST LENGTH. . .
9 (LSB)
10 Reserved
11 CONTROL