smartctl : is it serious , doctor?
FedoraForum.org - Fedora Support Forums and Community
Results 1 to 9 of 9
  1. #1
    Join Date
    Nov 2009
    Posts
    261
    Linux (Fedora) Firefox 64.0

    smartctl : is it serious , doctor?

    Hi,

    I decided to check the state of my /boot /root /swap hard disk. An 80GB Baracuda. It shows quite a lot of seek errors but in view of the length of service, I'm not sure what significance to put on this figure.

    Should it be near zero, or is such a figure typical for a spinning disk after years of service?

    Code:
    Vendor Specific SMART Attributes with Thresholds:
    ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
      1 Raw_Read_Error_Rate     0x000f   100   253   006    Pre-fail  Always       -       0
      3 Spin_Up_Time            0x0003   098   097   000    Pre-fail  Always       -       0
      4 Start_Stop_Count        0x0032   100   100   020    Old_age   Always       -       887
      5 Reallocated_Sector_Ct   0x0033   100   100   036    Pre-fail  Always       -       0
      7 Seek_Error_Rate         0x000f   082   060   030    Pre-fail  Always       -       185267288
      9 Power_On_Hours          0x0032   067   067   000    Old_age   Always       -       29711
     10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail  Always       -       0
     12 Power_Cycle_Count       0x0032   100   100   020    Old_age   Always       -       887
    187 Reported_Uncorrect      0x0032   100   100   000    Old_age   Always       -       0
    189 High_Fly_Writes         0x003a   100   100   000    Old_age   Always       -       0
    190 Airflow_Temperature_Cel 0x0022   064   048   045    Old_age   Always       -       36 (Min/Max 33/38)
    194 Temperature_Celsius     0x0022   036   052   000    Old_age   Always       -       36 (0 12 0 0 0)
    195 Hardware_ECC_Recovered  0x001a   073   068   000    Old_age   Always       -       19173734
    197 Current_Pending_Sector  0x0012   100   100   000    Old_age   Always       -       0
    198 Offline_Uncorrectable   0x0010   100   100   000    Old_age   Offline      -       0
    199 UDMA_CRC_Error_Count    0x003e   200   200   000    Old_age   Always       -       0
    200 Multi_Zone_Error_Rate   0x0000   100   253   000    Old_age   Offline      -       0
    202 Data_Address_Mark_Errs  0x0032   100   253   000    Old_age   Always       -       0
    thanks for any help putting this in context.

  2. #2
    Join Date
    Nov 2004
    Location
    MT USA
    Posts
    987
    Windows 7 Firefox 64.0

    Re: smartctl : is it serious , doctor?

    This may help answer your question:

    http://www.tomshardware.com/forum/26...eek-error-rate

  3. #3
    Join Date
    Nov 2009
    Posts
    261
    Linux (Fedora) Firefox 64.0

    Re: smartctl : is it serious , doctor?

    thanks, that gives me some background . So if I take that figure as the "raw" seek counts and pull out the lower 32 bits:
    print 185267288 / 2**32
    0.0431359019130468

    ie there are zero seek count errors. Good news except IMO, too good to be true. Not sure that is the right interpretation.

    Reallocated_Sector_Ct is zero and that seems to be the most critical indicator of problems. Maybe I'm OK.
    Last edited by feddy; 16th January 2019 at 10:58 PM.

  4. #4
    Join Date
    Nov 2004
    Location
    MT USA
    Posts
    987
    Windows 7 Firefox 64.0

    Re: smartctl : is it serious , doctor?

    And another reference (duckduckgo and google search do work ) . See the third answer in following thread. Starts with "The "seek error rate" and "raw read error rate" RAW_VALUES are virtually meaningless " :

    https://serverfault.com/questions/31...-smartmon-data

    I think your fine.

  5. #5
    Join Date
    Dec 2013
    Location
    United Kingdom
    Posts
    6,812
    Windows NT 10.0 Chrome 71.0.3578.98

    Re: smartctl : is it serious , doctor?

    Quote Originally Posted by rclark
    And another reference (duckduckgo and google search do work ) . See the third answer in following thread. Starts with "The "seek error rate" and "raw read error rate" RAW_VALUES are virtually meaningless " :

    https://serverfault.com/questions/31...-smartmon-data

    I think your fine.
    fine being a relative term, relying on any drive that old with pre-fail status is playing russian roulette but since your /home partition is separate then a catastrophic failure wouldn't be too sole destroying.

    either way feddy, do you take regular backups?

  6. #6
    Join Date
    Nov 2004
    Location
    MT USA
    Posts
    987
    Linux (Ubuntu) Firefox 64.0

    Re: smartctl : is it serious , doctor?

    Fine is relative! Yeah, I would agree with the 'Old Age' part. But the readings seem normal. 82% good, no reallocated sectors yet. Not sure what 'Old Age' really means .. 1Y, 2Y, 10Y? That said, if over 4 years, I'd start looking for an SSD replacement or a HDD if that's the preference. Cheap insurance! Personally I'd go with an SSD and reserve the HDD for mass storage.

  7. #7
    Join Date
    Nov 2009
    Posts
    261
    Linux (Fedora) Firefox 64.0

    Re: smartctl : is it serious , doctor?

    relying on any drive that old with pre-fail status is playing russian roulette
    The whole point of having this kind of intelligence built into a drive is so that we have some data on which to base assessments, not just rely on "age". A 10y old disk that has never been used is "old" or not ? Age is not a useful parameter. The problem is determining what the significance of the seek errors is on these drives.

    (duckduckgo and google search do work )
    yes, obviously I have been doing that but results have not satisfied me that I have the right answer. The repeated answer that the raw value is a 48b value with seeks in low 32b and errors in high 16b means I have zero seek errors. That is not consistent with other columns which would be 100 100 30 if that were the case. As usual , search results seem a bit like asking the question at the counter of the local bar.

    I have a smallish SSD which I intended to install on this box to speed it up a bit but that is another question which will require more time and reading to do properly.

  8. #8
    Join Date
    Dec 2013
    Location
    United Kingdom
    Posts
    6,812
    Linux Chrome 71.0.3578.98

    Re: smartctl : is it serious , doctor?

    so you don't consider pre-fail status an issue? ok good luck with that then. also old drives can suffer with dried out bearing lubricant (it turns to a creamed cheese consistency) whether used regularly or not which is why the old-age status reported by smart and my russian roulette comparison aren't actually as flippant as you seem to believe.

  9. #9
    Join Date
    Nov 2009
    Posts
    261
    Linux (Fedora) Firefox 64.0

    Re: smartctl : is it serious , doctor?

    Thanks, I was not aware of the cream cheese issue but my point was that calendar age is not a key factor when we have the kind of detailed functional diagnostic reporting that is available with SMART.

    From what I have read, these drives always have a certain number of seek failure, that is normal operation even when new. The point at which this becomes an "issue" is then relative. The manufacturer gives a threshold of 30 and I see no reason not to trust that. This drive has 82/100 on that scale. so it is something to keep an eye on but not on the point of giving out. It has zero reallocated sectors, so it seems in a reasonable state of health.

    As you already noted, this used for root and /boot which are recoverable in case of failure, so it is not a critical situation in terms of recovery.

    My main reason for looking into this was a FreeCAD extension was being very slow to load files. I moved the FreeCAD stuff off this drive and it remains the same. FreeCAD problem.

    Also I have trouble with LXterminal locking up and crashing after long periods of usage, though I suspect this is a bug to do with copy/paste using the primary buffer. All instances of LXterminal lock up and opening a new one just crashes all instances. This always happens during a primary buffer paste, so I don't think this is disk related.

    thanks for the reply.

Similar Threads

  1. The newest doctor
    By smr54 in forum Wibble
    Replies: 12
    Last Post: 7th August 2013, 02:20 AM
  2. Who is your favorite Doctor in Doctor Who?
    By RupertPupkin in forum Wibble
    Replies: 24
    Last Post: 16th June 2013, 01:50 AM
  3. Doctor Who
    By sonoran in forum Wibble
    Replies: 7
    Last Post: 29th December 2012, 05:28 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •