User Manual

SCSI Commands Reference Manual, Rev. J 325
www.seagate.com Parameters for direct access devices
5.2.8.2 Temperature Report log parameter
The Temperature Report log parameter has the format shown in table 296.
PARAMETER CODE field
The PARAMETER CODE field is described in 5.2.2.2.1 and shall be as shown in table 294 for the Temperature Report log parameters.
PARAMETER LENGTH field
The PARAMETER LENGTH field is described in 5.2.2.2.1 and shall be set as shown in table 296 for the Temperature Report log parameters.
The temperature values reported in the Temperature Report log parameters indicate a temperature in degrees Celsius. Negative values shall be
indicated by two's complement notation. A value of -128 (i.e., 80h) specifies that temperature is not valid.
TEMPERATURE field
The TEMPERATURE field indicates the most recently detected temperature by the temperature sensor associated with this log parameter.
LIFETIME MAXIMUM TEMPERATURE field
The LIFETIME MAXIMUM TEMPERATURE field indicates the maximum temperature detected by the temperature sensor associated with this log
parameter since the time of manufacture.
LIFETIME MINIMUM TEMPERATURE field
The LIFETIME MINIMUM TEMPERATURE field indicates the minimum temperature detected by the temperature sensor associated with this log
parameter since the time of manufacture.
MAXIMUM TEMPERATURE SINCE POWER ON field
The MAXIMUM TEMPERATURE SINCE POWER ON field indicates the maximum temperature detected by the temperature sensor associated
with this log parameter since the most recent power on.
MINIMUM TEMPERATURE SINCE POWER ON field
The MINIMUM TEMPERATURE SINCE POWER ON field indicates the minimum temperature detected by the temperature sensor associated with
this log parameter since the most recent power on.
Table 296 Temperature Report log parameter
Bit
Byte
7 6 5 4 3 2 1 0
0 (MSB)
PARAMETER CODE (see table 289)
1 (LSB)
2 PARAMETER CONTROL BYTE – binary format list log parameter (see 5.2.2.2.2.5)
3 PARAMETER LENGTH (08h)
4 Reserved
5 TEMPERATURE
6 LIFETIME MAXIMUM TEMPERATURE
7 LIFETIME MINIMUM TEMPERATURE
8 MAXIMUM TEMPERATURE SINCE POWER ON
9 MINIMUM TEMPERATURE SINCE POWER ON
10
Reserved
11