<div dir="ltr"><div>Hi,</div><div><br></div><div>how to understand the following lines of smartctl -x output?</div><div></div><div>
<p><span style="color:rgb(0,0,255)"><strong>SMART Extended Comprehensive Error Log Version: 1 (1 sectors)<br>
No Errors Logged</strong></span></p>
<p><strong style="color:rgb(0,0,255)">SMART Extended Self-test Log Version: 1 (1 sectors)</strong></p>
</div><div>Especially, what is the meaning of "1 sectors"? I hope this is not the number of bad/failing sectors, right?<br></div><div><br></div><div>On another drive, I get the following:</div><div><span style="color:rgb(0,0,255)">SMART Extended Comprehensive Error Log Version: 1 (64 sectors)<br>No Errors Logged<br><br>SMART Extended Self-test Log Version: 1 (1 sectors)</span></div><div><br></div><div>And another one:</div><div><span style="color:rgb(0,0,255)">SMART Extended Comprehensive Error Log Version: 1 (6 sectors)<br>No Errors Logged<br><br>SMART Extended Self-test Log Version: 1 (1 sectors)</span><br></div><div><br></div><div>So the numbers differ. As far as I know all three drives have no bad/failing sectors.</div><div><br></div><div>For the reference, I enclose the full output for the first drive at the end of the message.</div><div><br></div><div>Thank you in advance for your explanation.</div><div>D. Wroblewski</div><div><br></div><div><br></div><div><span style="font-family:monospace">smartctl 6.6 2017-11-05 r4594 [x86_64-w64-mingw32-w10-b19045] (sf-6.6-1)<br>Copyright (C) 2002-17, Bruce Allen, Christian Franke, <a href="http://www.smartmontools.org">www.smartmontools.org</a><br><br>=== START OF INFORMATION SECTION ===<br>Model Family: Samsung based SSDs<br>Device Model: Samsung SSD 870 EVO 4TB<br>Serial Number: S6BCNF0W303394P<br>LU WWN Device Id: 5 002538 f43335cfe<br>Firmware Version: SVT02B6Q<br>User Capacity: 4 000 787 030 016 bytes [4,00 TB]<br>Sector Size: 512 bytes logical/physical<br>Rotation Rate: Solid State Device<br>Form Factor: 2.5 inches<br>Device is: In smartctl database [for details use: -P show]<br>ATA Version is: ACS-4 T13/BSR INCITS 529 revision 5<br>SATA Version is: SATA 3.3, 6.0 Gb/s (current: 6.0 Gb/s)<br>Local Time is: Wed May 24 13:47:15 2023 CEDT<br>SMART support is: Available - device has SMART capability.<br>SMART support is: Enabled<br>AAM feature is: Unavailable<br>APM feature is: Unavailable<br>Rd look-ahead is: Enabled<br>Write cache is: Enabled<br>DSN feature is: Unavailable<br>ATA Security is: Disabled, NOT FROZEN [SEC1]<br><br>=== START OF READ SMART DATA SECTION ===<br>SMART overall-health self-assessment test result: PASSED<br><br>General SMART Values:<br>Offline data collection status: (0x00) Offline data collection activity<br> was never started.<br> Auto Offline Data Collection: Disabled.<br>Self-test execution status: ( 0) The previous self-test routine completed<br> without error or no self-test has ever <br> been run.<br>Total time to complete Offline <br>data collection: ( 0) seconds.<br>Offline data collection<br>capabilities: (0x53) SMART execute Offline immediate.<br> Auto Offline data collection on/off support.<br> Suspend Offline collection upon new<br> command.<br> No Offline surface scan supported.<br> Self-test supported.<br> No Conveyance Self-test supported.<br> Selective Self-test supported.<br>SMART capabilities: (0x0003) Saves SMART data before entering<br> power-saving mode.<br> Supports SMART auto save timer.<br>Error logging capability: (0x01) Error logging supported.<br> General Purpose Logging supported.<br>Short self-test routine <br>recommended polling time: ( 2) minutes.<br>Extended self-test routine<br>recommended polling time: ( 320) minutes.<br>SCT capabilities: (0x003d) SCT Status supported.<br> SCT Error Recovery Control supported.<br> SCT Feature Control supported.<br> SCT Data Table supported.<br><br>SMART Attributes Data Structure revision number: 1<br>Vendor Specific SMART Attributes with Thresholds:<br>ID# ATTRIBUTE_NAME FLAGS VALUE WORST THRESH FAIL RAW_VALUE<br> 5 Reallocated_Sector_Ct PO--CK 100 100 010 - 0<br> 9 Power_On_Hours -O--CK 099 099 000 - 72<br> 12 Power_Cycle_Count -O--CK 099 099 000 - 70<br>177 Wear_Leveling_Count PO--C- 100 100 000 - 0<br>179 Used_Rsvd_Blk_Cnt_Tot PO--C- 100 100 010 - 0<br>181 Program_Fail_Cnt_Total -O--CK 100 100 010 - 0<br>182 Erase_Fail_Count_Total -O--CK 100 100 010 - 0<br>183 Runtime_Bad_Block PO--C- 100 100 010 - 0<br>187 Uncorrectable_Error_Cnt -O--CK 100 100 000 - 0<br>190 Airflow_Temperature_Cel -O--CK 068 057 000 - 32<br>195 ECC_Error_Rate -O-RC- 200 200 000 - 0<br>199 CRC_Error_Count -OSRCK 100 100 000 - 0<br>235 POR_Recovery_Count -O--C- 099 099 000 - 47<br>241 Total_LBAs_Written -O--CK 099 099 000 - 99307622<br>252 Unknown_Attribute -O--CK 100 100 000 - 0<br> ||||||_ K auto-keep<br> |||||__ C event count<br> ||||___ R error rate<br> |||____ S speed/performance<br> ||_____ O updated online<br> |______ P prefailure warning<br><br>General Purpose Log Directory Version 1<br>SMART Log Directory Version 1 [multi-sector log support]<br>Address Access R/W Size Description<br>0x00 GPL,SL R/O 1 Log Directory<br>0x01 SL R/O 1 Summary SMART error log<br>0x02 SL R/O 1 Comprehensive SMART error log<br>0x03 GPL R/O 1 Ext. Comprehensive SMART error log<br>0x04 GPL,SL R/O 8 Device Statistics log<br>0x06 SL R/O 1 SMART self-test log<br>0x07 GPL R/O 1 Extended self-test log<br>0x09 SL R/W 1 Selective self-test log<br>0x10 GPL R/O 1 NCQ Command Error log<br>0x11 GPL R/O 1 SATA Phy Event Counters log<br>0x13 GPL R/O 1 SATA NCQ Send and Receive log<br>0x30 GPL,SL R/O 9 IDENTIFY DEVICE data log<br>0x80-0x9f GPL,SL R/W 16 Host vendor specific log<br>0xa1 SL VS 16 Device vendor specific log<br>0xa5 SL VS 16 Device vendor specific log<br>0xce SL VS 16 Device vendor specific log<br>0xe0 GPL,SL R/W 1 SCT Command/Status<br>0xe1 GPL,SL R/W 1 SCT Data Transfer<br><br>SMART Extended Comprehensive Error Log Version: 1 (1 sectors)<br>No Errors Logged<br><br>SMART Extended Self-test Log Version: 1 (1 sectors)<br>Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error<br># 1 Short offline Completed without error 00% 71 -<br># 2 Short offline Completed without error 00% 66 -<br># 3 Extended offline Completed without error 00% 62 -<br># 4 Extended offline Aborted by host 90% 56 -<br># 5 Extended offline Aborted by host 90% 55 -<br># 6 Short offline Completed without error 00% 5 -<br># 7 Extended offline Aborted by host 80% 1 -<br># 8 Short offline Completed without error 00% 0 -<br><br>SMART Selective self-test log data structure revision number 1<br> SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS<br> 1 0 0 Not_testing<br> 2 0 0 Not_testing<br> 3 0 0 Not_testing<br> 4 0 0 Not_testing<br> 5 0 0 Not_testing<br> 256 0 65535 Read_scanning was never started<br>Selective self-test flags (0x0):<br> After scanning selected spans, do NOT read-scan remainder of disk.<br>If Selective self-test is pending on power-up, resume after 0 minute delay.<br><br>SCT Status Version: 3<br>SCT Version (vendor specific): 256 (0x0100)<br>SCT Support Level: 1<br>Device State: Active (0)<br>Current Temperature: 32 Celsius<br>Power Cycle Min/Max Temperature: 29/29 Celsius<br>Lifetime Min/Max Temperature: 28/43 Celsius<br>Under/Over Temperature Limit Count: 0/0<br>SMART Status: 0xc24f (PASSED)<br><br>SCT Temperature History Version: 2<br>Temperature Sampling Period: 10 minutes<br>Temperature Logging Interval: 10 minutes<br>Min/Max recommended Temperature: 0/70 Celsius<br>Min/Max Temperature Limit: 0/70 Celsius<br>Temperature History Size (Index): 128 (0)<br><br>Index Estimated Time Temperature Celsius<br> 1 2023-05-23 16:30 ? -<br> 2 2023-05-23 16:40 ? -<br> 3 2023-05-23 16:50 ? -<br> 4 2023-05-23 17:00 32 *************<br> 5 2023-05-23 17:10 31 ************<br> 6 2023-05-23 17:20 ? -<br> 7 2023-05-23 17:30 31 ************<br> 8 2023-05-23 17:40 ? -<br> ... ..( 4 skipped). .. -<br> 13 2023-05-23 18:30 ? -<br> 14 2023-05-23 18:40 38 *******************<br> 15 2023-05-23 18:50 ? -<br> 16 2023-05-23 19:00 ? -<br> 17 2023-05-23 19:10 28 *********<br> 18 2023-05-23 19:20 39 ********************<br> 19 2023-05-23 19:30 40 *********************<br> 20 2023-05-23 19:40 ? -<br> 21 2023-05-23 19:50 28 *********<br> 22 2023-05-23 20:00 ? -<br> 23 2023-05-23 20:10 38 *******************<br> 24 2023-05-23 20:20 40 *********************<br> ... ..( 2 skipped). .. *********************<br> 27 2023-05-23 20:50 40 *********************<br> 28 2023-05-23 21:00 41 **********************<br> ... ..( 13 skipped). .. **********************<br> 42 2023-05-23 23:20 41 **********************<br> 43 2023-05-23 23:30 42 ***********************<br> ... ..( 6 skipped). .. ***********************<br> 50 2023-05-24 00:40 42 ***********************<br> 51 2023-05-24 00:50 43 ************************<br> 52 2023-05-24 01:00 43 ************************<br> 53 2023-05-24 01:10 43 ************************<br> 54 2023-05-24 01:20 36 *****************<br> 55 2023-05-24 01:30 31 ************<br> ... ..( 20 skipped). .. ************<br> 76 2023-05-24 05:00 31 ************<br> 77 2023-05-24 05:10 32 *************<br> 78 2023-05-24 05:20 32 *************<br> 79 2023-05-24 05:30 31 ************<br> 80 2023-05-24 05:40 32 *************<br> 81 2023-05-24 05:50 32 *************<br> 82 2023-05-24 06:00 35 ****************<br> 83 2023-05-24 06:10 32 *************<br> 84 2023-05-24 06:20 32 *************<br> 85 2023-05-24 06:30 31 ************<br> ... ..( 3 skipped). .. ************<br> 89 2023-05-24 07:10 31 ************<br> 90 2023-05-24 07:20 ? -<br> 91 2023-05-24 07:30 32 *************<br> 92 2023-05-24 07:40 ? -<br> 93 2023-05-24 07:50 ? -<br> 94 2023-05-24 08:00 32 *************<br> 95 2023-05-24 08:10 33 **************<br> 96 2023-05-24 08:20 32 *************<br> 97 2023-05-24 08:30 ? -<br> 98 2023-05-24 08:40 ? -<br> 99 2023-05-24 08:50 ? -<br> 100 2023-05-24 09:00 39 ********************<br> 101 2023-05-24 09:10 31 ************<br> 102 2023-05-24 09:20 ? -<br> 103 2023-05-24 09:30 39 ********************<br> 104 2023-05-24 09:40 42 ***********************<br> 105 2023-05-24 09:50 42 ***********************<br> 106 2023-05-24 10:00 41 **********************<br> 107 2023-05-24 10:10 41 **********************<br> 108 2023-05-24 10:20 ? -<br> ... ..( 2 skipped). .. -<br> 111 2023-05-24 10:50 ? -<br> 112 2023-05-24 11:00 29 **********<br> ... ..( 5 skipped). .. **********<br> 118 2023-05-24 12:00 29 **********<br> 119 2023-05-24 12:10 30 ***********<br> 120 2023-05-24 12:20 ? -<br> ... ..( 7 skipped). .. -<br> 0 2023-05-24 13:40 ? -<br><br>SCT Error Recovery Control:<br> Read: Disabled<br> Write: Disabled<br><br>Device Statistics (GP Log 0x04)<br>Page Offset Size Value Flags Description<br>0x01 ===== = = === == General Statistics (rev 1) ==<br>0x01 0x008 4 70 --- Lifetime Power-On Resets<br>0x01 0x010 4 72 --- Power-on Hours<br>0x01 0x018 6 99307622 --- Logical Sectors Written<br>0x01 0x020 6 140790 --- Number of Write Commands<br>0x01 0x028 6 62635072 --- Logical Sectors Read<br>0x01 0x030 6 163275 --- Number of Read Commands<br>0x01 0x038 6 221000 --- Date and Time TimeStamp<br>0x04 ===== = = === == General Errors Statistics (rev 1) ==<br>0x04 0x008 4 0 --- Number of Reported Uncorrectable Errors<br>0x04 0x010 4 83 --- Resets Between Cmd Acceptance and Completion<br>0x05 ===== = = === == Temperature Statistics (rev 1) ==<br>0x05 0x008 1 32 --- Current Temperature<br>0x05 0x020 1 43 --- Highest Temperature<br>0x05 0x028 1 28 --- Lowest Temperature<br>0x05 0x058 1 70 --- Specified Maximum Operating Temperature<br>0x06 ===== = = === == Transport Statistics (rev 1) ==<br>0x06 0x008 4 374 --- Number of Hardware Resets<br>0x06 0x010 4 0 --- Number of ASR Events<br>0x06 0x018 4 0 --- Number of Interface CRC Errors<br>0x07 ===== = = === == Solid State Device Statistics (rev 1) ==<br>0x07 0x008 1 0 N-- Percentage Used Endurance Indicator<br> |||_ C monitored condition met<br> ||__ D supports DSN<br> |___ N normalized value<br><br>SATA Phy Event Counters (GP Log 0x11)<br>ID Size Value Description<br>0x0001 2 0 Command failed due to ICRC error<br>0x0002 2 0 R_ERR response for data FIS<br>0x0003 2 0 R_ERR response for device-to-host data FIS<br>0x0004 2 0 R_ERR response for host-to-device data FIS<br>0x0005 2 0 R_ERR response for non-data FIS<br>0x0006 2 0 R_ERR response for device-to-host non-data FIS<br>0x0007 2 0 R_ERR response for host-to-device non-data FIS<br>0x0008 2 0 Device-to-host non-data FIS retries<br>0x0009 2 0 Transition from drive PhyRdy to drive PhyNRdy<br>0x000a 2 0 Device-to-host register FISes sent due to a COMRESET<br>0x000b 2 0 CRC errors within host-to-device FIS<br>0x000d 2 0 Non-CRC errors within host-to-device FIS<br>0x000f 2 0 R_ERR response for host-to-device data FIS, CRC<br>0x0010 2 0 R_ERR response for host-to-device data FIS, non-CRC<br>0x0012 2 0 R_ERR response for host-to-device non-data FIS, CRC<br>0x0013 2 0 R_ERR response for host-to-device non-data FIS, non-CRC</span></div><div><br></div></div>