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Thread: smart says SSD is Pre-fail or Old_age

  1. #1
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    Default smart says SSD is Pre-fail or Old_age

    I had configured smart to do every day selftests.
    It now sends me everyday a mail containing this :

    Code:
    This message was generated by the smartd daemon running on:
    
       host name:  xxx
       DNS domain: xxx
    
    The following warning/error was logged by the smartd daemon:
    
    Device: /dev/sda [SAT], Self-Test Log error count increased from 11 to 12
    
    Device info:
    M4-CT128M4SSD2, S/N:000000001238091641E5, WWN:5-00a075-1091641e5, FW:000F, 128 GB
    
    For details see host's SYSLOG.
    
    You can also use the smartctl utility for further investigation.
    The original message about this issue was sent at Fri Oct 20 09:03:55 2017 CEST
    Another message will be sent in 24 hours if the problem persists.

    Here the smart detailed report :

    Code:
    [--root@xxx 10:24:18 /home/christophe] smartctl -A /dev/sda
    smartctl 6.5 2016-05-07 r4318 [x86_64-linux-4.4.92-18.36-default] (SUSE RPM)
    Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org
    
    === START OF READ SMART DATA SECTION ===
    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   100   100   050    Pre-fail  Always       -       0
      5 Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail  Always       -       0
      9 Power_On_Hours          0x0032   100   100   001    Old_age   Always       -       14013
     12 Power_Cycle_Count       0x0032   100   100   001    Old_age   Always       -       5220
    170 Grown_Failing_Block_Ct  0x0033   100   100   010    Pre-fail  Always       -       0
    171 Program_Fail_Count      0x0032   100   100   001    Old_age   Always       -       0
    172 Erase_Fail_Count        0x0032   100   100   001    Old_age   Always       -       0
    173 Wear_Leveling_Count     0x0033   088   088   010    Pre-fail  Always       -       375
    174 Unexpect_Power_Loss_Ct  0x0032   100   100   001    Old_age   Always       -       153
    181 Non4k_Aligned_Access    0x0022   100   100   001    Old_age   Always       -       413 75 337
    183 SATA_Iface_Downshift    0x0032   100   100   001    Old_age   Always       -       0
    184 End-to-End_Error        0x0033   100   100   050    Pre-fail  Always       -       0
    187 Reported_Uncorrect      0x0032   100   100   001    Old_age   Always       -       24
    188 Command_Timeout         0x0032   100   100   001    Old_age   Always       -       0
    189 Factory_Bad_Block_Ct    0x000e   100   100   001    Old_age   Always       -       82
    194 Temperature_Celsius     0x0022   100   100   000    Old_age   Always       -       0
    195 Hardware_ECC_Recovered  0x003a   100   100   001    Old_age   Always       -       534
    196 Reallocated_Event_Count 0x0032   100   100   001    Old_age   Always       -       0
    197 Current_Pending_Sector  0x0032   100   100   001    Old_age   Always       -       0
    198 Offline_Uncorrectable   0x0030   100   100   001    Old_age   Offline      -       0
    199 UDMA_CRC_Error_Count    0x0032   100   100   001    Old_age   Always       -       0
    202 Perc_Rated_Life_Used    0x0018   088   088   001    Old_age   Offline      -       12
    206 Write_Error_Rate        0x000e   100   100   001    Old_age   Always       -       0
    What should i do ?

    Isn't there a trim utility somewhere that would cure this problem ?

    Should i use some vendor utility to repair this ?

  2. #2
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    Default Re: smart says SSD is Pre-fail or Old_age

    That report doesn't look too bad... I've seen a lot worse

    Pre-fail and Old_age are the category of error, it's not indicating either are imminent.

    Ignore any RAW values, as they're vendor specific there's no way to interpret them (which is why smartmon tools maintains a drive database with interpretations for those values). You can find a description of the meanings of many of the flags here: http://en.wikipedia.org/wiki/S.M.A.R....T._attributes


    What's actually being recorded in the Self Test log?
    Code:
    smartctl -l selftest /dev/sdX
    Regards, Paul

  3. #3
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    Default Re: smart says SSD is Pre-fail or Old_age

    On Sat 04 Nov 2017 11:36:01 AM CDT, Christophe deR wrote:

    I had configured smart to do every day selftests.
    It now sends me everyday a mail containing this :

    <snip>

    What should i do ?

    Isn't there a trim utility somewhere that would cure this problem ?

    Should i use some vendor utility to repair this ?
    Hi
    Why a test everyday, why at all unless there is an issue?

    Balance and trim are taken care of automagically if running btrfs (and
    others?).

    --
    Cheers Malcolm °¿° SUSE Knowledge Partner (Linux Counter #276890)
    openSUSE Leap 42.2|GNOME 3.20.2|4.4.90-18.32-default
    If you find this post helpful and are logged into the web interface,
    please show your appreciation and click on the star below... Thanks!


  4. #4
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    Default Re: smart says SSD is Pre-fail or Old_age

    Note that smart may record it's data in ssd flash thus increasing ware. Some SSD's ship with smart off for that reason. Just saying

  5. #5
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    Default Re: smart says SSD is Pre-fail or Old_age

    What's the matter? Unless I'm getting blind I see that most parameters are still at 100%. The only two that aren't are "173 Wear_Leveling_Count" and "202 Perc_Rated_Life_Used" both at 88%.
    If I'm still good at math, that translates to something like more than 13 years of life remaining, assuming 24/7 operation. Or, your system is likely to go to the junkyard before the disk is worn out at your current usage.

    So disable the daily selftest and stop worrying ...
    Tumbleweed Gnome on i7 4720HQ + Geforce GTX960M
    testing Leap 15.3

  6. #6
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    Default Re: smart says SSD is Pre-fail or Old_age

    "Pre-fail" and "Old Age" are <types> of counters, not the status.
    So, you're completely mis-reading the meaning (there is no meaning, they're categories of counters and have the same importance if called "Bob" and "Joe."

    Similarly,
    The numbers that are displayed like 100 and 88 don't really have any meaning, I don't think they necessarily mean percentage of something(some might be, but again... usually not important).

    A lot of what is displayed in a smartmontools report has little or no importance. Sure, it's interesting to know how many hours it's been powered on, and how many lifetime writes... Those are things I look at only when purchasing a used disk to guestimate the amount of wear and tear the disk has already undergone(You can't trust what a Seller says, only what is reported by smartmontools because it can't be altered except by the factory).

    More importantly and the only real indication of imminent disk failure is bad sectors, and if you are able to compare results over a few weeks whether the number of bad sectors are increasing.

    And <then> if you have a disk that's going bad,
    - Get your data off that disk ASAP.
    - Research your disk and disk manufacturer. For example Seagate(with its less than sterling reliability ratings) has a Seatools utility that can try to repair bad sectors by first trying to write to those sectors and either report as healthy and usable or mapped out permanently (All disk drives have a reserve of sectors).

    What I've described applies to both HDD and SSD, the latter because of its HDD layout emulation.

    As for the stuff about trim, that's something else that's only tangentially relevant by having something to do with SSD traps. But, nothing to do with what is in your smartmontools report.

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  7. #7
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    Default Re: smart says SSD is Pre-fail or Old_age

    Quote Originally Posted by tannington View Post
    snip
    What's actually being recorded in the Self Test log?
    Code:
    smartctl -l selftest /dev/sdX

    Code:
    smartctl -l selftest /dev/sda
    smartctl 6.5 2016-05-07 r4318 [x86_64-linux-4.4.92-18.36-default] (SUSE RPM)
    Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org
    
    === START OF READ SMART DATA SECTION ===
    SMART Self-test log structure revision number 1
    Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
    # 1  Extended offline    Completed: read failure       90%     14011         4574456
    # 2  Short offline       Completed: read failure       90%     14008         4574456
    # 3  Short offline       Completed: read failure       90%     13994         4574456
    # 4  Short offline       Completed: read failure       90%     13986         4574456
    # 5  Short offline       Completed: read failure       90%     13976         4574456
    # 6  Extended offline    Completed: read failure       90%     13972         4574456
    # 7  Short offline       Completed: read failure       90%     13966         4574456
    # 8  Short offline       Completed: read failure       90%     13962         4574456
    # 9  Short offline       Completed: read failure       90%     13955         4574456
    #10  Short offline       Completed: read failure       90%     13953         4574456
    #11  Short offline       Completed: read failure       90%     13948         4574456
    #12  Extended offline    Completed: read failure       90%     13939         4574456
    #13  Short offline       Completed: read failure       90%     13938         4574456
    #14  Short offline       Completed: read failure       90%     13924         4574456
    #15  Vendor (0xff)       Completed without error       00%      8338         -
    #16  Extended offline    Completed without error       00%      3569         -
    #17  Extended offline    Completed without error       00%      3560         -
    #18  Extended offline    Completed without error       00%      3548         -
    #19  Extended offline    Completed without error       00%      3532         -
    #20  Extended offline    Completed without error       00%      3524         -
    #21  Extended offline    Completed without error       00%      3513         -

  8. #8
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    Default Re: smart says SSD is Pre-fail or Old_age

    Quote Originally Posted by malcolmlewis View Post
    Hi
    Why a test everyday, why at all unless there is an issue?

    Balance and trim are taken care of automagically if running btrfs (and
    others?).!
    I had btrfs until 2 weeks ago and the system failed.

    Btrfs with 37GB for a system is danger and i had to report previous problems of low space and very frequent system freeze and failures (see my previous topics)

    I had to re-install the whole system and i lost some datas, not vital but important.

    I swore at many people during these bad days.

    I used ext4 for my new install (btrfs = never again).

    But i have these strange smart reports that i did not have before ....
    Due to btrfs over strain ?
    Or disk failures caused btrfs mess ?
    Don't know.

    Is trim and balance necessary for ext4 ?

  9. #9
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    Default Re: smart says SSD is Pre-fail or Old_age

    I would to thank all of you for your answers and i will keep an eye on this hard disk, and keep you informed.

  10. #10
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    Default Re: smart says SSD is Pre-fail or Old_age

    Quote Originally Posted by Christophe_deR View Post
    I had btrfs until 2 weeks ago and the system failed.

    Btrfs with 37GB for a system is danger and i had to report previous problems of low space and very frequent system freeze and failures (see my previous topics)

    I had to re-install the whole system and i lost some datas, not vital but important.

    I swore at many people during these bad days.

    I used ext4 for my new install (btrfs = never again).

    But i have these strange smart reports that i did not have before ....
    Due to btrfs over strain ?
    Or disk failures caused btrfs mess ?
    Don't know.

    Is trim and balance necessary for ext4 ?
    Hi
    How is the SSD connected, if in a laptop, does it have a cable/header or just a header connection. Sometimes cable connections can cause things like freezes, check the system logs as well.

    Here are my four, all run btrfs... no issues;

    Code:
    OCZ-AGILITY3 9 Power_On_Hours_and_Msec 40,492
    OCZ-VERTEX4 9 Power_On_Hours 29,106
    OCZ-VERTEX460A 9 Power_On_Hours 13,307
    SanDisk SDSSDXPS240G 9 Power_On_Hours 3,483
    You should also consider planning to update Leap 42.3 in the next few months.....

    What are the current mount options for your device from the following;
    Code:
    mount
    For trim, what is the status of (run as root user);
    Code:
    systemctl status fstrim.timer
    Cheers Malcolm °¿° SUSE Knowledge Partner (Linux Counter #276890)
    SUSE SLE, openSUSE Leap/Tumbleweed (x86_64) | GNOME DE
    If you find this post helpful and are logged into the web interface,
    please show your appreciation and click on the star below... Thanks!

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