User Manual

SCSI Commands Reference Manual, Rev. J 372
www.seagate.com Parameters for direct access devices
PARAMETER CODE field
The PARAMETER CODE field is described in 5.2.2.2.2, and shall be set as shown in table 352 for the Temperature log parameter.
PARAMETER LENGTH field
The PARAMETER LENGTH field is described in 5.2.2.2.2, and shall be set as shown in table 352 for the Temperature log parameter.
TEMPERATURE field
The TEMPERATURE field indicates the temperature of the SCSI target device in degrees Celsius at the time the LOG SENSE command is per-
formed. Temperatures equal to or less than zero degrees Celsius shall cause the TEMPERATURE field to be set to zero. If the device server is
unable to detect a valid temperature because of a sensor failure or other condition, then the TEMPERATURE field shall be set to FFh. The tem-
perature should be reported with an accuracy of plus or minus three Celsius degrees while the SCSI target device is operating at a steady state
within its environmental limits.
No comparison is performed between the contents of the TEMPERATURE field and the contents of the optional REFERENCE TEMPERATURE
field.
REFERENCE TEMPERATURE field
The REFERENCE TEMPERATURE field indicates the maximum reported sensor temperature in degrees Celsius at which the SCSI target device is
capable of operating continuously without degrading the SCSI target device's operation or reliability beyond manufacturer accepted limits. If
the device server is unable to return a reference temperature and the optional Reference Temperature log parameter is included in the Tem
-
perature log page being returned, then REFERENCE TEMPERATURE field is set to FFh.
The reference temperature may change for vendor specific reasons.