User Manual

SCSI Commands Reference Manual, Rev. J 367
www.seagate.com Parameters for direct access devices
The year and week in the year that the SCSI target device was manufactured shall be contained in the parameter value of the log
parameter in which the parameter code is 0001h. The date of manufacture shall not be saveable by the application client using
the LOG SELECT command (i.e., the log parameter DS bit shall be set to one). The date is expressed in numeric ASCII characters
(30h – 39h) in the form YYYYWW, as shown in table 347.
The accounting date specified by parameter code 0002h may be saved using a LOG SELECT command to indicate when the
device was placed in service. If the parameter is not yet set or is not settable, the default value placed in the parameter field shall
be 6 ASCII space characters (20h). The field shall not be checked for validity by the device server.
The parameter value in the specified cycle count over device lifetime log parameter (parameter code 0003h) shall contain a
four-byte binary value that indicates how many stop-start cycles may typically be performed over the lifetime of the SCSI target
device without degrading the SCSI target device’s operation or reliability outside the limits specified by the manufacturer of the
SCSI target device. The specified cycle count over device lifetime parameter shall not be saveable by the application client using
the LOG SELECT command (i.e., the log parameter DS bit shall be set to one).
28 (MSB)
SPECIFIED CYCLE COUNT OVER DEVICE LIFETIME
(4-BYTE BINARY NUMBER)
. . .
31 (LSB)
32 (MSB)
PARAMETER CODE 0004h
ACCUMULATED START-STOP CYCLES
33 (LSB)
34 PARAMETER CONTROL BYTE – binary format list log parameter (see 5.2.2.2.2.5)
35 PARAMETER LENGTH (04h)
36 (MSB)
ACCUMULATED START-STOP CYCLES
(4-BYTE BINARY NUMBER)
. . .
39 (LSB)
40 (MSB)
PARAMETER CODE 0005h
SPECIFIED LOAD-UNLOAD COUNT OVER DEVICE LIFETIME
41 (LSB)
42 PARAMETER CONTROL BYTE – binary format list log parameter (see 5.2.2.2.2.5)
43 PARAMETER LENGTH (04h)
44 (MSB)
SPECIFIED LOAD-UNLOAD COUNT OVER DEVICE LIFETIME
(4-BYTE BINARY NUMBER)
. . .
47 (LSB)
48 (MSB)
PARAMETER CODE 0006h
ACCUMULATED LOAD-UNLOAD CYCLES
49 (LSB)
50 PARAMETER CONTROL BYTE – binary format list log parameter (see 5.2.2.2.2.5)
51 PARAMETER LENGTH (04h)
52 (MSB)
ACCUMULATED LOAD-UNLOAD CYCLES
(4-BYTE BINARY NUMBER)
. . .
55 (LSB)
Table 347 Start-Stop Cycle Counter log page (Sheet 2 of 2)
Bit
Byte
7 6 5 4 3 2 1 0