big temperature difference between smartd & smartctl

[oximore]

Server: Debian squeeze
smartmontools 5.39.1+svn3124-2

---

Hello,

The temperature I get from the log file is very different from the one I get with the smartctl command:

cat /var/log/syslog | grep Celsius

May  7 07:00:19 interne smartd[17990]: Device: /dev/sda [SAT], SMART Usage Attribute: 194 Temperature_Celsius changed from 119 to 118
May  7 07:00:19 interne smartd[17990]: Device: /dev/sdc [SAT], SMART Usage Attribute: 194 Temperature_Celsius changed from 118 to 117
May  7 07:30:18 interne smartd[17990]: Device: /dev/sdc [SAT], SMART Usage Attribute: 194 Temperature_Celsius changed from 117 to 118
May  7 08:00:18 interne smartd[17990]: Device: /dev/sdb [SAT], SMART Usage Attribute: 194 Temperature_Celsius changed from 32 to 33
May  7 08:00:19 interne smartd[17990]: Device: /dev/sdc [SAT], SMART Usage Attribute: 194 Temperature_Celsius changed from 118 to 117
May  7 08:30:19 interne smartd[17990]: Device: /dev/sdb [SAT], SMART Usage Attribute: 194 Temperature_Celsius changed from 33 to 32
May  7 08:30:20 interne smartd[17990]: Device: /dev/sdd [SAT], SMART Usage Attribute: 194 Temperature_Celsius changed from 121 to 120
May  7 10:00:20 interne smartd[17990]: Device: /dev/sdc [SAT], SMART Usage Attribute: 194 Temperature_Celsius changed from 117 to 118
May  7 11:00:19 interne smartd[17990]: Device: /dev/sdb [SAT], SMART Usage Attribute: 194 Temperature_Celsius changed from 32 to 33
May  7 11:00:19 interne smartd[17990]: Device: /dev/sdd [SAT], SMART Usage Attribute: 194 Temperature_Celsius changed from 120 to 121
...

And when I use smartctl:

smartctl -x /dev/sda

Current Temperature:                    32 Celsius

Index    Estimated Time   Temperature Celsius
  43    2013-05-07 12:59    32  *************
 ...    ..( 42 skipped).    ..  *************
  86    2013-05-07 13:42    32  *************
  87    2013-05-07 13:43    31  ************
 ...    ..( 15 skipped).    ..  ************
 103    2013-05-07 13:59    31  ************
 104    2013-05-07 14:00    32  *************
 ...    ..(122 skipped).    ..  *************
 227    2013-05-07 16:03    32  *************
 228    2013-05-07 16:04    33  **************
 ...    ..( 60 skipped).    ..  **************
 289    2013-05-07 17:05    33  **************
 290    2013-05-07 17:06    32  *************
 ...    ..(111 skipped).    ..  *************
 402    2013-05-07 18:58    32  *************
 403    2013-05-07 18:59    33  **************
 ...    ..( 58 skipped).    ..  **************
 462    2013-05-07 19:58    33  **************
 463    2013-05-07 19:59    32  *************
 ...    ..(  7 skipped).    ..  *************
 471    2013-05-07 20:07    32  *************
 472    2013-05-07 20:08    31  ************
 ...    ..( 25 skipped).    ..  ************
  20    2013-05-07 20:34    31  ************
  21    2013-05-07 20:35    32  *************
 ...    ..( 20 skipped).    ..  *************
  42    2013-05-07 20:56    32  *************

(same values for sdb, sdc & sdd)

Any idea where that comes from?

119° Celsius.. Imagine my face when I saw that :)

[Christian Franke]

These log entries show the normalized attribute value. See the FAQ for further info.

Add "-I 194" directive to suppress these log entries. Add "-W ..." directive to enable temperature logging (see smartd.conf man page).

BTW: Your smartmontools version is more than 3 years old, please update if possible.

[oximore]

Thanks for your answer.

Sorry to not have seen that in the FAQ.

About the version, it's the version that goes with Debian squeeze.
Debian wheezy became the new stable version 3 days ago and will install v5.41+svn3365-1 (also old, I know, but we like stability on our servers ;))

Thanks again

[nolting11]

I hold written about the ​essay service in a blog stream by a website amount about academic publications. Adopt a exhibit as I weary my concede experience in handwriting it. Besides restrain too the pinpoint its gorgeous useful to you.