[smartmontools-support] Short test always fails, long test passes

Thane K. Sherrington thane at computerconnectionltd.com
Fri Dec 8 14:48:27 CET 2017


Here's a strange one.  I have a hard drive that fails every short read 
test with a read error, but every long tests passes.

Any idea why, and should I be concerned?

I've included the output below:

smartctl 6.5 2016-05-07 r4318 [i686-w64-mingw32-win7(64)-sp1] (sf-6.5-1)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Hitachi/HGST Travelstar 7K750
Device Model:     Hitachi HTS727550A9E364
Serial Number:    J33L0083G1WMRA
LU WWN Device Id: 5 000cca 68bc0dc1d
Firmware Version: JF3OA200
User Capacity:    500,107,862,016 bytes [500 GB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    7200 rpm
Form Factor:      2.5 inches
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   ATA8-ACS T13/1699-D revision 6
SATA Version is:  SATA 2.6, 3.0 Gb/s
Local Time is:    Fri Dec 08 09:45:53 2017 AST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status:  (0x82)    Offline data collection activity
                     was completed without error.
                     Auto Offline Data Collection: Enabled.
Self-test execution status:      ( 115)    The previous self-test 
completed having
                     the read element of the test failed.
Total time to complete Offline
data collection:         (   45) seconds.
Offline data collection
capabilities:              (0x5b) SMART execute Offline immediate.
                     Auto Offline data collection on/off support.
                     Suspend Offline collection upon new
                     command.
                     Offline surface scan supported.
                     Self-test supported.
                     No Conveyance Self-test supported.
                     Selective Self-test supported.
SMART capabilities:            (0x0003)    Saves SMART data before entering
                     power-saving mode.
                     Supports SMART auto save timer.
Error logging capability:        (0x01)    Error logging supported.
                     General Purpose Logging supported.
Short self-test routine
recommended polling time:      (   2) minutes.
Extended self-test routine
recommended polling time:      ( 116) minutes.
SCT capabilities:            (0x003d)    SCT Status supported.
                     SCT Error Recovery Control supported.
                     SCT Feature Control supported.
                     SCT Data Table supported.

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   062    Pre-fail 
Always       -       0
   2 Throughput_Performance  0x0005   156   156   040    Pre-fail 
Offline      -       121
   3 Spin_Up_Time            0x0007   253   253   033    Pre-fail 
Always       -       2
   4 Start_Stop_Count        0x0012   095   095   000    Old_age 
Always       -       8484
   5 Reallocated_Sector_Ct   0x0033   100   100   005    Pre-fail 
Always       -       0
   7 Seek_Error_Rate         0x000b   100   100   067    Pre-fail 
Always       -       0
   8 Seek_Time_Performance   0x0005   094   094   040    Pre-fail 
Offline      -       58
   9 Power_On_Hours          0x0012   066   066   000    Old_age 
Always       -       15062
  10 Spin_Retry_Count        0x0013   100   100   060    Pre-fail 
Always       -       0
  12 Power_Cycle_Count       0x0032   097   097   000    Old_age 
Always       -       4797
191 G-Sense_Error_Rate      0x000a   100   100   000    Old_age 
Always       -       0
192 Power-Off_Retract_Count 0x0032   100   100   000    Old_age 
Always       -       196624
193 Load_Cycle_Count        0x0012   095   095   000    Old_age 
Always       -       52817
194 Temperature_Celsius     0x0002   181   181   000    Old_age 
Always       -       33 (Min/Max 8/47)
196 Reallocated_Event_Count 0x0032   100   100   000    Old_age 
Always       -       14
197 Current_Pending_Sector  0x0022   100   100   000    Old_age 
Always       -       0
198 Offline_Uncorrectable   0x0008   100   100   000    Old_age 
Offline      -       0
199 UDMA_CRC_Error_Count    0x000a   200   200   000    Old_age 
Always       -       0
223 Load_Retry_Count        0x000a   100   100   000    Old_age 
Always       -       0

SMART Error Log Version: 1
No Errors Logged

SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining 
LifeTime(hours)  LBA_of_first_error
# 1  Short offline       Completed: read failure       30% 15062         -
# 2  Extended offline    Completed without error       00% 15062         -
# 3  Extended offline    Completed without error       00% 15047         -
# 4  Short offline       Completed: read failure       30% 15043         -
# 5  Extended offline    Interrupted (host reset)      60% 15039         -
# 6  Extended offline    Completed without error       00% 15020         -
# 7  Extended offline    Completed without error       00% 15016         -
# 8  Extended offline    Completed without error       00% 15005         -
# 9  Short offline       Completed: read failure       30% 14999         -
#10  Short offline       Aborted by host               50% 14999         -
#11  Extended offline    Completed without error       00% 10730         -
#12  Extended offline    Aborted by host               80% 10724         -
#13  Extended offline    Interrupted (host reset)      80% 10724         -
#14  Extended offline    Interrupted (host reset)      70% 10723         -
#15  Extended offline    Interrupted (host reset)      90% 10723         -
#16  Extended offline    Interrupted (host reset)      90% 10722         -
#17  Extended offline    Interrupted (host reset)      90% 10722         -
#18  Extended offline    Interrupted (host reset)      90% 10722         -
#19  Extended offline    Interrupted (host reset)      90% 10722         -
#20  Extended offline    Interrupted (host reset)      90% 10722         -
#21  Short offline       Completed without error       00% 10718         -
2 of 3 failed self-tests are outdated by newer successful extended 
offline self-test # 2

SMART Selective self-test log data structure revision number 1
  SPAN  MIN_LBA  MAX_LBA  CURRENT_TEST_STATUS
     1        0        0  Not_testing
     2        0        0  Not_testing
     3        0        0  Not_testing
     4        0        0  Not_testing
     5        0        0  Not_testing
Selective self-test flags (0x0):
   After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.


-- 
Thane K. Sherrington

Computer Connection, Ltd.  ...taking the mystery out of computers since 1982.
Winner of the 2012 Ian Spencer - Excellence in Business Award
Winner of the 2016 Reader's Choice Best Computer Store
Winner of the 2017 Reader's Choice Best Computer Store
95 College St., Antigonish,
NS B2G 1X6
902-863-3361 (phone)
902-863-2580 (fax)
thane at computerconnectionltd.com






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