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I am struggeling with smartd.conf and disk auto-test/emails.

My settings now:

I set my MAILADDR in mdadm.conf and also ran smartd.service and ever since iam receiving info about disk failures, but seemingly in very random way (times to be exact). Single emails about SMART errors are coming at 1:18, 2:48, 4:48, 6:25, 8:18, 11:18, 13:18, 16:18 - that was example of yesterday "randomness", times vary every day.

The email contains info about for example:

Device: /dev/sdo [SAT], 2 Offline uncorrectable sectors

Device: /dev/sdaj [SAT], 1 Offline uncorrectable sectors

Device: /dev/sdbo [SAT], 1 Offline uncorrectable sectors

etc.

About which honestly i really don't care, its really no big deal - i would like to receive emails like that maybe once a week, to check if the number is increasing and its time to be proactive and change HDD. On the other side, emails about DegradedArray, Sparse missing or such are welcome, but they are also coming from "mdadm monitoring" as fot others - SMART errors are coming straight from root. So i suppose those are two different alarms. First looks like default smratd.service and other as mdadm (my mail set in mdadm.conf)

Its bit confusing and annoying - telling me about single sector failures every day on old HDDs is not really necessary so i wonder if i can change the frequency of sending certain types of emails - doing certain tests.

I red articles on internet and I tried to customize the tests per my colleague advice using smartd.conf

/dev/sda -d sat -m mail@random.oo -M exec /usr/share/smartmontools/smartd-runner \ -a -o on -S on -s (S/../.././22|L/../../6/07) -R 194

but its not working i would say. Iam not receiving any emails about results of short/long test and disks seems not to be tested anyway. But iam still receiving what i think is results of default tests of smartd.

Proof of short/long tests not running automatically - example of sda:

=== START OF INFORMATION SECTION ===
Model Family:     Western Digital Re
Device Model:     WDC WD3000FYYZ-01UL1B1
Serial Number:    WD-WMC1F0D8PHL6
LU WWN Device Id: 5 0014ee 0ae891f1b
Firmware Version: 01.01K02
User Capacity:    3,000,592,982,016 bytes [3.00 TB]
Sector Size:      512 bytes logical/physical
Rotation Rate:    7200 rpm
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   ATA8-ACS (minor revision not indicated)
SATA Version is:  SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Mon Jan 14 11:05:56 2019 CET
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:  (0x84) Offline data collection activity
                    was suspended by an interrupting command from host.
                    Auto Offline Data Collection: Enabled.
Self-test execution status:      (   0) The previous self-test routine completed
                    without error or no self-test has ever 
                    been run.
Total time to complete Offline 
data collection:        (34620) seconds.
Offline data collection
capabilities:            (0x7b) SMART execute Offline immediate.
                    Auto Offline data collection on/off support.
                    Suspend Offline collection upon new
                    command.
                    Offline surface scan supported.
                    Self-test supported.
                    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:    ( 375) minutes.
Conveyance self-test routine
recommended polling time:    (   5) minutes.
SCT capabilities:          (0x70bd) 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     0x002f   200   200   051    Pre-fail  Always       -       0
  3 Spin_Up_Time            0x0027   209   157   021    Pre-fail  Always       -       8508
  4 Start_Stop_Count        0x0032   100   100   000    Old_age   Always       -       18
  5 Reallocated_Sector_Ct   0x0033   200   200   140    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x002e   100   253   000    Old_age   Always       -       0
  9 Power_On_Hours          0x0032   066   066   000    Old_age   Always       -       25411
 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       -       18
183 Runtime_Bad_Block       0x0032   100   100   000    Old_age   Always       -       0
192 Power-Off_Retract_Count 0x0032   200   200   000    Old_age   Always       -       17
193 Load_Cycle_Count        0x0032   200   200   000    Old_age   Always       -       3
194 Temperature_Celsius     0x0022   110   107   000    Old_age   Always       -       42
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   200   200   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x0032   200   200   000    Old_age   Always       -       0
200 Multi_Zone_Error_Rate   0x0008   200   200   000    Old_age   Offline      -       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  Conveyance offline  Completed without error       00%        22         -
# 2  Short offline       Completed without error       00%        22         -

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.

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