Confirming this issue: Using Ubuntu 16.04, Kernel 4.4.0-57-generic wrong temperatures also make it into syslog:
Jan 2 20:22:27 server smartd[876]: Device: /dev/sda [SAT], SMART Usage Attribute: 194 Temperature_Celsius changed from 110 to 112 Jan 2 20:22:27 server smartd[876]: Device: /dev/sdb [SAT], SMART Usage Attribute: 194 Temperature_Celsius changed from 111 to 113 Not only is that wrong, it also tells admins that there was need to take action. Eventually, it makes it into some monitoring tool, which thereby abstracts the RAW_VALUE even further. Note that in reality my drives have <40°C, just by reading SMART's RAW_VALUE (and touching the drive with my finger). Also note that the device model is "In smartctl database", according to smartctl's output. That said, I'd expect smartctl to somehow "know" all variables of my drive, including their meaning. smartctl 6.5 2016-01-24 r4214 [x86_64-linux-4.4.0-57-generic] (local build) Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org === START OF INFORMATION SECTION === Model Family: Western Digital AV-GP (AF) Device Model: WDC WD30EURS-63SPKY0 [...] Firmware Version: 80.00A80 User Capacity: 3.000.592.982.016 bytes [3,00 TB] Sector Sizes: 512 bytes logical, 4096 bytes physical Device is: In smartctl database [for details use: -P show] ATA Version is: ACS-2 (minor revision not indicated) SATA Version is: SATA 3.0, 3.0 Gb/s (current: 3.0 Gb/s) Local Time is: Mon Jan 2 23:27:25 2017 CET SMART support is: Available - device has SMART capability. SMART support is: Enabled === START OF READ SMART DATA SECTION === SMART Attributes Data Structure revision number: 16 Vendor Specific SMART Attributes with Thresholds: ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE 1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always - 0 3 Spin_Up_Time 0x0027 177 176 021 Pre-fail Always - 6133 4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 98 5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0 7 Seek_Error_Rate 0x002e 200 200 000 Old_age Always - 0 9 Power_On_Hours 0x0032 072 072 000 Old_age Always - 20909 10 Spin_Retry_Count 0x0032 100 253 000 Old_age Always - 0 11 Calibration_Retry_Count 0x0032 100 253 000 Old_age Always - 0 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 98 192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 55 193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 42 194 Temperature_Celsius 0x0022 112 101 000 Old_age Always - 38 196 Reallocated_Event_Count 0x0032 200 200 000 Old_age Always - 0 197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always - 0 198 Offline_Uncorrectable 0x0030 100 253 000 Old_age Offline - 0 199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age Always - 0 200 Multi_Zone_Error_Rate 0x0008 100 253 000 Old_age Offline - 0 smartctl -P show /dev/sda smartctl 6.5 2016-01-24 r4214 [x86_64-linux-4.4.0-57-generic] (local build) Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org Drive found in smartmontools Database. Drive identity strings: MODEL: WDC WD30EURS-63SPKY0 FIRMWARE: 80.00A80 match smartmontools Drive Database entry: MODEL REGEXP: WDC WD(5000AUDX|7500AURS|10EUCX|(10|15|20|25|30)EUR[SX])-.* FIRMWARE REGEXP: .* MODEL FAMILY: Western Digital AV-GP (AF) ATTRIBUTE OPTIONS: None preset; no -v options are required. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to libatasmart in Ubuntu. https://bugs.launchpad.net/bugs/1581594 Title: constantly shows wrong temperature (99°C ) Status in libatasmart: Unknown Status in libatasmart package in Ubuntu: In Progress Bug description: Hello, here's my system info ~$ lsb_release -rd Description: Ubuntu 16.04 LTS Release: 16.04 ~$ apt-cache policy udisks2 udisks2: Installed: 2.1.7-1ubuntu1 Candidate: 2.1.7-1ubuntu1 Version table: *** 2.1.7-1ubuntu1 500 500 http://archive.ubuntu.com/ubuntu xenial/main amd64 Packages 100 /var/lib/dpkg/status Here's the problem: udisks2 constantly shows that my ssd temperature is 99°C (210°F), but in reality it's 30°C ~$ sudo smartctl -A /dev/sda smartctl 6.5 2016-01-24 r4214 [x86_64-linux-4.4.0-22-generic] (local build) Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org === START OF READ SMART DATA SECTION === SMART Attributes Data Structure revision number: 16 Vendor Specific SMART Attributes with Thresholds: ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE 1 Raw_Read_Error_Rate 0x000b 100 100 050 Pre-fail Always - 0 9 Power_On_Hours 0x0012 100 100 000 Old_age Always - 24 12 Power_Cycle_Count 0x0012 100 100 000 Old_age Always - 51 168 Unknown_Attribute 0x0012 100 100 000 Old_age Always - 0 170 Unknown_Attribute 0x0003 100 100 010 Pre-fail Always - 231 173 Unknown_Attribute 0x0012 100 100 000 Old_age Always - 65539 192 Power-Off_Retract_Count 0x0012 100 100 000 Old_age Always - 23 194 Temperature_Celsius 0x0023 070 070 030 Pre-fail Always - 30 (Min/Max 30/30) 218 Unknown_Attribute 0x000b 100 100 050 Pre-fail Always - 0 231 Temperature_Celsius 0x0013 100 100 000 Pre-fail Always - 99 241 Total_LBAs_Written 0x0012 100 100 000 Old_age Always - 337 in the GUI app ("Disks") it shows the wrong temperature too. hddtemp works well though: ~$ sudo hddtemp /dev/sda /dev/sda: PNY EU SSD CS1311 240GB: 30°C To manage notifications about this bug go to: https://bugs.launchpad.net/libatasmart/+bug/1581594/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
