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Help me interpret smartctl output please

Last response: in Storage
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I have been noticing performance issues recently, and in an attempt to diagnose the issue I ran a smartctl. I'll paste the full output below here but a few things stuck out at me, I'm just wanting to ensure I'm reading this report correctly. By what I'm seeing it appears my drive is past the threshold on raw read error's and spin up time. It also appears to have spiked at an extremely high temperature at some point (likely leading to the errors). These stats seem to indicate the drive is in "pre fail" condition and is likely to die at any moment. If someone would be willing to just look it over and confirm my suspicions, or call me an idiot and school me on how to properly read the report that would be great :) 

  1. sudo smartctl /dev/disk0 -x
    

  2. Password:
    

  3. smartctl 5.43 2012-06-30 r3573 [x86_64-apple-darwin12.1.0] (local build)
    

  4. Copyright (C) 2002-12 by Bruce Allen, <a href="http://smartmontools.sourceforge.net" rel="nofollow" target="_blank">http://smartmontools.sourceforge.net</a>
    

  5.  
  6. === START OF INFORMATION SECTION ===
    

  7. Model Family:     Hitachi Travelstar 7K500
    

  8. Device Model:     Hitachi HTS725050A9A362
    

  9. Serial Number:    100914PCG420VLKBP0ZC
    

  10. LU WWN Device Id: 5 000cca 5b5ef958b
    

  11. Firmware Version: PC4ACB1E
    

  12. User Capacity:    500,107,862,016 bytes [500 GB]
    

  13. Sector Size:      512 bytes logical/physical
    

  14. Device is:        In smartctl database [for details use: -P show]
    

  15. ATA Version is:   8
    

  16. ATA Standard is:  ATA-8-ACS revision 6
    

  17. Local Time is:    Mon Sep 24 13:04:05 2012 EDT
    

  18. SMART support is: Available - device has SMART capability.
    

  19. SMART support is: Enabled
    

  20. AAM feature is:   Unavailable
    

  21. APM level is:     128 (minimum power consumption without standby)
    

  22. Rd look-ahead is: Enabled
    

  23. Write cache is:   Enabled
    

  24. ATA Security is:  Disabled, frozen [SEC2]
    

  25.  
  26. === START OF READ SMART DATA SECTION ===
    

  27. SMART overall-health self-assessment test result: PASSED
    

  28.  
  29. General SMART Values:
    

  30. Offline data collection status:  (0x00)	Offline data collection activity
    

  31. 					was never started.
    

  32. 					Auto Offline Data Collection: Disabled.
    

  33. Self-test execution status:      (   0)	The previous self-test routine completed
    

  34. 					without error or no self-test has ever 
    

  35. 					been run.
    

  36. Total time to complete Offline 
    

  37. data collection: 		(  645) seconds.
    

  38. Offline data collection
    

  39. capabilities: 			 (0x5b) SMART execute Offline immediate.
    

  40. 					Auto Offline data collection on/off support.
    

  41. 					Suspend Offline collection upon new
    

  42. 					command.
    

  43. 					Offline surface scan supported.
    

  44. 					Self-test supported.
    

  45. 					No Conveyance Self-test supported.
    

  46. 					Selective Self-test supported.
    

  47. SMART capabilities:            (0x0003)	Saves SMART data before entering
    

  48. 					power-saving mode.
    

  49. 					Supports SMART auto save timer.
    

  50. Error logging capability:        (0x01)	Error logging supported.
    

  51. 					General Purpose Logging supported.
    

  52. Short self-test routine 
    

  53. recommended polling time: 	 (   2) minutes.
    

  54. Extended self-test routine
    

  55. recommended polling time: 	 ( 131) minutes.
    

  56. SCT capabilities: 	       (0x003d)	SCT Status supported.
    

  57. 					SCT Error Recovery Control supported.
    

  58. 					SCT Feature Control supported.
    

  59. 					SCT Data Table supported.
    

  60.  
  61. SMART Attributes Data Structure revision number: 16
    

  62. Vendor Specific SMART Attributes with Thresholds:
    

  63. ID# ATTRIBUTE_NAME          FLAGS    VALUE WORST THRESH FAIL RAW_VALUE
    

  64.   1 Raw_Read_Error_Rate     PO-R--   086   086   062    -    8257585
    

  65.   2 Throughput_Performance  P-S---   100   100   040    -    0
    

  66.   3 Spin_Up_Time            POS---   140   140   033    -    2
    

  67.   4 Start_Stop_Count        -O--C-   100   100   000    -    1028
    

  68.   5 Reallocated_Sector_Ct   PO--CK   100   100   005    -    181
    

  69.   7 Seek_Error_Rate         PO-R--   100   100   067    -    0
    

  70.   8 Seek_Time_Performance   P-S---   100   100   040    -    0
    

  71.   9 Power_On_Hours          -O--C-   088   088   000    -    5611
    

  72.  10 Spin_Retry_Count        PO--C-   100   100   060    -    0
    

  73.  12 Power_Cycle_Count       -O--CK   100   100   000    -    926
    

  74. 160 Unknown_Attribute       -O--CK   100   100   000    -    0
    

  75. 191 G-Sense_Error_Rate      -O-R--   100   100   000    -    2156073582592
    

  76. 192 Power-Off_Retract_Count -O--CK   100   100   000    -    68733042703
    

  77. 193 Load_Cycle_Count        -O--C-   046   046   000    -    549160
    

  78. 194 Temperature_Celsius     -O----   152   152   000    -    36 (Min/Max 2/48)
    

  79. 195 Hardware_ECC_Recovered  -O-R--   100   100   000    -    0
    

  80. 196 Reallocated_Event_Count -O--CK   100   100   000    -    196
    

  81. 197 Current_Pending_Sector  -O---K   100   100   000    -    0
    

  82. 198 Offline_Uncorrectable   ---R--   100   100   000    -    0
    

  83. 199 UDMA_CRC_Error_Count    -O-R--   200   200   000    -    0
    

  84. 223 Load_Retry_Count        -O-R--   100   100   000    -    0
    

  85. 254 Free_Fall_Sensor        -O--CK   095   095   000    -    1424
    

  86.                             ||||||_ K auto-keep
    

  87.                             |||||__ C event count
    

  88.                             ||||___ R error rate
    

  89.                             |||____ S speed/performance
    

  90.                             ||_____ O updated online
    

  91.                             |______ P prefailure warning
    

  92.  
  93. ATA_READ_LOG_EXT (addr=0x00:0x00, page=0, n=1) failed: 48-bit ATA commands not supported
    

  94. Read GP Log Directory failed.
    

  95.  
  96. SMART Log Directory Version 1 [multi-sector log support]
    

  97. SMART Log at address 0x00 has    1 sectors [Log Directory]
    

  98. SMART Log at address 0x01 has    1 sectors [Summary SMART error log]
    

  99. SMART Log at address 0x02 has    1 sectors [Comprehensive SMART error log]
    

  100. SMART Log at address 0x06 has    1 sectors [SMART self-test log]
    

  101. SMART Log at address 0x09 has    1 sectors [Selective self-test log]
    

  102. SMART Log at address 0x80 has   16 sectors [Host vendor specific log]
    

  103. SMART Log at address 0x81 has   16 sectors [Host vendor specific log]
    

  104. SMART Log at address 0x82 has   16 sectors [Host vendor specific log]
    

  105. SMART Log at address 0x83 has   16 sectors [Host vendor specific log]
    

  106. SMART Log at address 0x84 has   16 sectors [Host vendor specific log]
    

  107. SMART Log at address 0x85 has   16 sectors [Host vendor specific log]
    

  108. SMART Log at address 0x86 has   16 sectors [Host vendor specific log]
    

  109. SMART Log at address 0x87 has   16 sectors [Host vendor specific log]
    

  110. SMART Log at address 0x88 has   16 sectors [Host vendor specific log]
    

  111. SMART Log at address 0x89 has   16 sectors [Host vendor specific log]
    

  112. SMART Log at address 0x8a has   16 sectors [Host vendor specific log]
    

  113. SMART Log at address 0x8b has   16 sectors [Host vendor specific log]
    

  114. SMART Log at address 0x8c has   16 sectors [Host vendor specific log]
    

  115. SMART Log at address 0x8d has   16 sectors [Host vendor specific log]
    

  116. SMART Log at address 0x8e has   16 sectors [Host vendor specific log]
    

  117. SMART Log at address 0x8f has   16 sectors [Host vendor specific log]
    

  118. SMART Log at address 0x90 has   16 sectors [Host vendor specific log]
    

  119. SMART Log at address 0x91 has   16 sectors [Host vendor specific log]
    

  120. SMART Log at address 0x92 has   16 sectors [Host vendor specific log]
    

  121. SMART Log at address 0x93 has   16 sectors [Host vendor specific log]
    

  122. SMART Log at address 0x94 has   16 sectors [Host vendor specific log]
    

  123. SMART Log at address 0x95 has   16 sectors [Host vendor specific log]
    

  124. SMART Log at address 0x96 has   16 sectors [Host vendor specific log]
    

  125. SMART Log at address 0x97 has   16 sectors [Host vendor specific log]
    

  126. SMART Log at address 0x98 has   16 sectors [Host vendor specific log]
    

  127. SMART Log at address 0x99 has   16 sectors [Host vendor specific log]
    

  128. SMART Log at address 0x9a has   16 sectors [Host vendor specific log]
    

  129. SMART Log at address 0x9b has   16 sectors [Host vendor specific log]
    

  130. SMART Log at address 0x9c has   16 sectors [Host vendor specific log]
    

  131. SMART Log at address 0x9d has   16 sectors [Host vendor specific log]
    

  132. SMART Log at address 0x9e has   16 sectors [Host vendor specific log]
    

  133. SMART Log at address 0x9f has   16 sectors [Host vendor specific log]
    

  134. SMART Log at address 0xa2 has    1 sectors [Device vendor specific log]
    

  135. SMART Log at address 0xe0 has    1 sectors [SCT Command/Status]
    

  136. SMART Log at address 0xe1 has    1 sectors [SCT Data Transfer]
    

  137.  
  138. SMART Extended Comprehensive Error Log (GP Log 0x03) not supported
    

  139. SMART Error Log Version: 1
    

  140. ATA Error Count: 1
    

  141. 	CR = Command Register [HEX]
    

  142. 	FR = Features Register [HEX]
    

  143. 	SC = Sector Count Register [HEX]
    

  144. 	SN = Sector Number Register [HEX]
    

  145. 	CL = Cylinder Low Register [HEX]
    

  146. 	CH = Cylinder High Register [HEX]
    

  147. 	DH = Device/Head Register [HEX]
    

  148. 	DC = Device Command Register [HEX]
    

  149. 	ER = Error register [HEX]
    

  150. 	ST = Status register [HEX]
    

  151. Powered_Up_Time is measured from power on, and printed as
    

  152. DDd+hh:mm:SS.sss where DD=days, hh=hours, mm=minutes,
    

  153. SS=sec, and sss=millisec. It "wraps" after 49.710 days.
    

  154.  
  155. Error 1 occurred at disk power-on lifetime: 5607 hours (233 days + 15 hours)
    

  156.   When the command that caused the error occurred, the device was active or idle.
    

  157.  
  158.   After command completion occurred, registers were:
    

  159.   ER ST SC SN CL CH DH
    

  160.   -- -- -- -- -- -- --
    

  161.   40 51 08 78 cd d7 4c  Error: UNC 8 sectors at LBA = 0x0cd7cd78 = 215469432
    

  162.  
  163.   Commands leading to the command that caused the error were:
    

  164.   CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
    

  165.   -- -- -- -- -- -- -- --  ----------------  --------------------
    

  166.   25 00 08 78 cd d7 40 00      00:29:35.500  READ DMA EXT
    

  167.   2f 00 01 10 00 00 00 00      00:29:35.500  READ LOG EXT
    

  168.   60 08 38 78 cd d7 40 00      00:29:31.900  READ FPDMA QUEUED
    

  169.   60 08 30 88 67 bf 40 00      00:29:31.900  READ FPDMA QUEUED
    

  170.   60 08 28 a8 c1 bf 40 00      00:29:31.800  READ FPDMA QUEUED
    

  171.  
  172. SMART Extended Self-test Log (GP Log 0x07) not supported
    

  173. SMART Self-test log structure revision number 1
    

  174. No self-tests have been logged.  [To run self-tests, use: smartctl -t]
    

  175.  
  176.  
  177. SMART Selective self-test log data structure revision number 1
    

  178.  SPAN  MIN_LBA  MAX_LBA  CURRENT_TEST_STATUS
    

  179.     1        0        0  Not_testing
    

  180.     2        0        0  Not_testing
    

  181.     3        0        0  Not_testing
    

  182.     4        0        0  Not_testing
    

  183.     5        0        0  Not_testing
    

  184. Selective self-test flags (0x0):
    

  185.   After scanning selected spans, do NOT read-scan remainder of disk.
    

  186. If Selective self-test is pending on power-up, resume after 0 minute delay.
    

  187.  
  188. SCT Status Version:                  3
    

  189. SCT Version (vendor specific):       256 (0x0100)
    

  190. SCT Support Level:                   1
    

  191. Device State:                        Active (0)
    

  192. Current Temperature:                    36 Celsius
    

  193. Power Cycle Min/Max Temperature:     36/41 Celsius
    

  194. Lifetime    Min/Max Temperature:      2/48 Celsius
    

  195. Lifetime    Average Temperature:        34 Celsius
    

  196. Under/Over Temperature Limit Count:   0/0
    

  197. SCT Temperature History Version:     2
    

  198. Temperature Sampling Period:         1 minute
    

  199. Temperature Logging Interval:        1 minute
    

  200. Min/Max recommended Temperature:      5/60 Celsius
    

  201. Min/Max Temperature Limit:           -40/65 Celsius
    

  202. Temperature History Size (Index):    478 (419)
    

  203.  
  204. Index    Estimated Time   Temperature Celsius
    

  205.  420    2012-09-24 05:07    34  ***************
    

  206.  ...    ..( 30 skipped).    ..  ***************
    

  207.  451    2012-09-24 05:38    34  ***************
    

  208.  452    2012-09-24 05:39    35  ****************
    

  209.  453    2012-09-24 05:40    34  ***************
    

  210.  454    2012-09-24 05:41    35  ****************
    

  211.  455    2012-09-24 05:42    34  ***************
    

  212.  456    2012-09-24 05:43    34  ***************
    

  213.  457    2012-09-24 05:44    35  ****************
    

  214.  458    2012-09-24 05:45    34  ***************
    

  215.  459    2012-09-24 05:46    34  ***************
    

  216.  460    2012-09-24 05:47    35  ****************
    

  217.  461    2012-09-24 05:48    34  ***************
    

  218.  462    2012-09-24 05:49    35  ****************
    

  219.  463    2012-09-24 05:50    34  ***************
    

  220.  464    2012-09-24 05:51    35  ****************
    

  221.  ...    ..(  5 skipped).    ..  ****************
    

  222.  470    2012-09-24 05:57    35  ****************
    

  223.  471    2012-09-24 05:58    34  ***************
    

  224.  472    2012-09-24 05:59    35  ****************
    

  225.  ...    ..( 14 skipped).    ..  ****************
    

  226.    9    2012-09-24 06:14    35  ****************
    

  227.   10    2012-09-24 06:15    34  ***************
    

  228.   11    2012-09-24 06:16    35  ****************
    

  229.   12    2012-09-24 06:17    34  ***************
    

  230.   13    2012-09-24 06:18    35  ****************
    

  231.  ...    ..( 92 skipped).    ..  ****************
    

  232.  106    2012-09-24 07:51    35  ****************
    

  233.  107    2012-09-24 07:52    36  *****************
    

  234.  108    2012-09-24 07:53    35  ****************
    

  235.  109    2012-09-24 07:54    36  *****************
    

  236.  110    2012-09-24 07:55    35  ****************
    

  237.  111    2012-09-24 07:56    35  ****************
    

  238.  112    2012-09-24 07:57    35  ****************
    

  239.  113    2012-09-24 07:58    36  *****************
    

  240.  114    2012-09-24 07:59    36  *****************
    

  241.  115    2012-09-24 08:00    35  ****************
    

  242.  116    2012-09-24 08:01    36  *****************
    

  243.  ...    ..(  7 skipped).    ..  *****************
    

  244.  124    2012-09-24 08:09    36  *****************
    

  245.  125    2012-09-24 08:10    37  ******************
    

  246.  126    2012-09-24 08:11    37  ******************
    

  247.  127    2012-09-24 08:12    37  ******************
    

  248.  128    2012-09-24 08:13    38  *******************
    

  249.  129    2012-09-24 08:14    37  ******************
    

  250.  130    2012-09-24 08:15    37  ******************
    

  251.  131    2012-09-24 08:16    38  *******************
    

  252.  ...    ..(  8 skipped).    ..  *******************
    

  253.  140    2012-09-24 08:25    38  *******************
    

  254.  141    2012-09-24 08:26    37  ******************
    

  255.  ...    ..(  7 skipped).    ..  ******************
    

  256.  149    2012-09-24 08:34    37  ******************
    

  257.  150    2012-09-24 08:35    38  *******************
    

  258.  ...    ..(  6 skipped).    ..  *******************
    

  259.  157    2012-09-24 08:42    38  *******************
    

  260.  158    2012-09-24 08:43    39  ********************
    

  261.  ...    ..(  2 skipped).    ..  ********************
    

  262.  161    2012-09-24 08:46    39  ********************
    

  263.  162    2012-09-24 08:47    40  *********************
    

  264.  ...    ..( 13 skipped).    ..  *********************
    

  265.  176    2012-09-24 09:01    40  *********************
    

  266.  177    2012-09-24 09:02    39  ********************
    

  267.  178    2012-09-24 09:03    39  ********************
    

  268.  179    2012-09-24 09:04    39  ********************
    

  269.  180    2012-09-24 09:05    38  *******************
    

  270.  ...    ..(  2 skipped).    ..  *******************
    

  271.  183    2012-09-24 09:08    38  *******************
    

  272.  184    2012-09-24 09:09    39  ********************
    

  273.  ...    ..(  2 skipped).    ..  ********************
    

  274.  187    2012-09-24 09:12    39  ********************
    

  275.  188    2012-09-24 09:13    40  *********************
    

  276.  ...    ..(  7 skipped).    ..  *********************
    

  277.  196    2012-09-24 09:21    40  *********************
    

  278.  197    2012-09-24 09:22    41  **********************
    

  279.  ...    ..( 16 skipped).    ..  **********************
    

  280.  214    2012-09-24 09:39    41  **********************
    

  281.  215    2012-09-24 09:40    40  *********************
    

  282.  216    2012-09-24 09:41    40  *********************
    

  283.  217    2012-09-24 09:42    40  *********************
    

  284.  218    2012-09-24 09:43    39  ********************
    

  285.  219    2012-09-24 09:44    39  ********************
    

  286.  220    2012-09-24 09:45    39  ********************
    

  287.  221    2012-09-24 09:46    38  *******************
    

  288.  ...    ..(  4 skipped).    ..  *******************
    

  289.  226    2012-09-24 09:51    38  *******************
    

  290.  227    2012-09-24 09:52    37  ******************
    

  291.  228    2012-09-24 09:53    38  *******************
    

  292.  229    2012-09-24 09:54    37  ******************
    

  293.  ...    ..( 14 skipped).    ..  ******************
    

  294.  244    2012-09-24 10:09    37  ******************
    

  295.  245    2012-09-24 10:10    38  *******************
    

  296.  246    2012-09-24 10:11    39  ********************
    

  297.  247    2012-09-24 10:12    39  ********************
    

  298.  248    2012-09-24 10:13    39  ********************
    

  299.  249    2012-09-24 10:14    38  *******************
    

  300.  ...    ..(  3 skipped).    ..  *******************
    

  301.  253    2012-09-24 10:18    38  *******************
    

  302.  254    2012-09-24 10:19    37  ******************
    

  303.  ...    ..( 14 skipped).    ..  ******************
    

  304.  269    2012-09-24 10:34    37  ******************
    

  305.  270    2012-09-24 10:35    38  *******************
    

  306.  ...    ..(  2 skipped).    ..  *******************
    

  307.  273    2012-09-24 10:38    38  *******************
    

  308.  274    2012-09-24 10:39    39  ********************
    

  309.  ...    ..(  9 skipped).    ..  ********************
    

  310.  284    2012-09-24 10:49    39  ********************
    

  311.  285    2012-09-24 10:50    38  *******************
    

  312.  ...    ..(  7 skipped).    ..  *******************
    

  313.  293    2012-09-24 10:58    38  *******************
    

  314.  294    2012-09-24 10:59    37  ******************
    

  315.  295    2012-09-24 11:00    37  ******************
    

  316.  296    2012-09-24 11:01    38  *******************
    

  317.  297    2012-09-24 11:02    38  *******************
    

  318.  298    2012-09-24 11:03    37  ******************
    

  319.  ...    ..(  2 skipped).    ..  ******************
    

  320.  301    2012-09-24 11:06    37  ******************
    

  321.  302    2012-09-24 11:07    38  *******************
    

  322.  303    2012-09-24 11:08    38  *******************
    

  323.  304    2012-09-24 11:09    38  *******************
    

  324.  305    2012-09-24 11:10    39  ********************
    

  325.  ...    ..(  2 skipped).    ..  ********************
    

  326.  308    2012-09-24 11:13    39  ********************
    

  327.  309    2012-09-24 11:14    38  *******************
    

  328.  ...    ..(  2 skipped).    ..  *******************
    

  329.  312    2012-09-24 11:17    38  *******************
    

  330.  313    2012-09-24 11:18    37  ******************
    

  331.  ...    ..( 34 skipped).    ..  ******************
    

  332.  348    2012-09-24 11:53    37  ******************
    

  333.  349    2012-09-24 11:54    36  *****************
    

  334.  ...    ..( 69 skipped).    ..  *****************
    

  335.  419    2012-09-24 13:04    36  *****************
    

  336.  
  337. Error SMART WRITE LOG does not return COUNT and LBA_LOW register
    

  338. Warning: device does not support SCT (Get) Error Recovery Control command
    

  339.  
  340. SATA Phy Event Counters (GP Log 0x11) not supported

More about : interpret smartctl output

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The Raw_Read_Error_Rate attribute is sick (86) , but it is still above the failure threshold (62). The Reallocated_Sector_Ct (181) is worrisome, too. I would backup regularly and not entrust any important data to this drive.

BTW, your drive appears to have a very aggressive autoparking setting.

Load_Cycle_Count -O--C- 046 046 000 - 549160
Power_On_Hours -O--C- 088 088 000 - 5611

This means that your drive parks its heads every 37 seconds, on average. You might like to reconfigure its APM settings using a utility such as hdparm. However, since APM settings are volatile (ie they don't survive a power cycle), then you may need to have hdparm run automatically at every boot.
 
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