Kernel driver drivetemp

References

ANS T13/1699-DInformation technology - AT Attachment 8 - ATA/ATAPI Command Set (ATA8-ACS)

ANS Project T10/BSR INCITS 513Information technology - SCSI Primary Commands - 4 (SPC-4)

ANS Project INCITS 557Information technology - SCSI / ATA Translation - 5 (SAT-5)

Description

This driver supports reporting the temperature of disk and solid statedrives with temperature sensors.

If supported, it uses the ATA SCT Command Transport feature to readthe current drive temperature and, if available, temperature limitsas well as historic minimum and maximum temperatures. If SCT CommandTransport is not supported, the driver uses SMART attributes to readthe drive temperature.

Sysfs entries

Only the temp1_input attribute is always available. Other attributes areavailable only if reported by the drive. All temperatures are reported inmilli-degrees Celsius.

temp1_inputCurrent drive temperature
temp1_lcritMinimum temperature limit. Operating the device belowthis temperature may cause physical damage to thedevice.
temp1_minMinimum recommended continuous operating limit
temp1_maxMaximum recommended continuous operating temperature
temp1_critMaximum temperature limit. Operating the device abovethis temperature may cause physical damage to thedevice.
temp1_lowestMinimum temperature seen this power cycle
temp1_highestMaximum temperature seen this power cycle