Looking for SSD life info.
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  1. #1
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    Looking for SSD life info.

    I installled smartmon tools and ran:

    "smartctl -a /dev/sdc2 | grep Media_Wearout_Indicator"

    and got no return. I checked my disk with gparted and it is a Samsung SSD 840 mounted as /dev/sdc2. Any suggestions?
    Thank you

  2. #2
    PabloTwo's Avatar
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    Re: Looking for SSD life info.

    Smartctl deals with the whole disk, not disk partitions. Try using /dev/sdc in the command instead of /dev/sdc2.

  3. #3
    leigh123linux Guest

    Re: Looking for SSD life info.

    I don't have Media_Wearout_Indicator either

    Code:
    # smartctl -a /dev/sda
    smartctl 6.2 2013-07-26 r3841 [x86_64-linux-3.12.6-300.fc20.x86_64] (local build)
    Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org
    
    === START OF INFORMATION SECTION ===
    Model Family:     Samsung based SSDs
    Device Model:     SAMSUNG SSD 830 Series
    Serial Number:    S0Z3NSAC932231
    LU WWN Device Id: 5 002538 043584d30
    Firmware Version: CXM03B1Q
    User Capacity:    128,035,676,160 bytes [128 GB]
    Sector Size:      512 bytes logical/physical
    Rotation Rate:    Solid State Device
    Device is:        In smartctl database [for details use: -P show]
    ATA Version is:   ACS-2 T13/2015-D revision 2
    SATA Version is:  SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s)
    Local Time is:    Fri Jan 10 19:33:25 2014 GMT
    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:  (0x02)    Offline data collection activity
                        was completed without error.
                        Auto Offline Data Collection: Disabled.
    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:         (  540) 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:      (   9) minutes.
    
    SMART Attributes Data Structure revision number: 1
    Vendor Specific SMART Attributes with Thresholds:
    ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
      5 Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail  Always       -       0
      9 Power_On_Hours          0x0032   098   098   000    Old_age   Always       -       5513
     12 Power_Cycle_Count       0x0032   099   099   000    Old_age   Always       -       908
    177 Wear_Leveling_Count     0x0013   098   098   000    Pre-fail  Always       -       40
    179 Used_Rsvd_Blk_Cnt_Tot   0x0013   100   100   010    Pre-fail  Always       -       0
    181 Program_Fail_Cnt_Total  0x0032   100   100   010    Old_age   Always       -       0
    182 Erase_Fail_Count_Total  0x0032   100   100   010    Old_age   Always       -       0
    183 Runtime_Bad_Block       0x0013   100   100   010    Pre-fail  Always       -       0
    187 Uncorrectable_Error_Cnt 0x0032   100   100   000    Old_age   Always       -       0
    190 Airflow_Temperature_Cel 0x0032   072   060   000    Old_age   Always       -       28
    195 ECC_Error_Rate          0x001a   200   200   000    Old_age   Always       -       0
    199 CRC_Error_Count         0x003e   253   253   000    Old_age   Always       -       0
    235 POR_Recovery_Count      0x0012   099   099   000    Old_age   Always       -       56
    241 Total_LBAs_Written      0x0032   099   099   000    Old_age   Always       -       3407799484
    
    SMART Error Log Version: 1
    No Errors Logged
    
    SMART Self-test log structure revision number 1
    No self-tests have been logged.  [To run self-tests, use: smartctl -t]
    
    
    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.

  4. #4
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    Re: Looking for SSD life info.

    I removed the 2 and the grep command and got a lot of data. I will study the data and hopefully learn sometning.
    Thank you for your responses

  5. #5
    Super Jamie Guest

    Re: Looking for SSD life info.

    If it's any help, the wear levelling of SSDs is greatly over-exaggerated.

    Any current-model SSD has a livespan of about 10Gb per day, every day, for about 8 to 10 years.

    Don't worry about it.

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