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How to read and what to look for in S.M.A.R.T. reports ?


serpro69
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Wanted to ask if someone can help me understand how to read these reports.

It says "good health" on all of them, but still would like to understand if there are any potential issues with these drives, and what to look for in these reports overall.

 

Spoiler

photo_2022-11-16_11-59-02.thumb.jpg.557d343893c17aea86becf7f66afdcf5.jpgphoto_2022-11-16_11-59-09.thumb.jpg.018f24d8d16ba52fd2e3b9ab666463e1.jpgphoto_2022-11-16_11-59-18.thumb.jpg.287bb54c239559a3131a46f096985edc.jpgphoto_2022-11-16_11-59-24.thumb.jpg.271079a65d82e1e8ae419b69e3dd20c7.jpg

 

Particularly, 'read error rate', 'spin up time', 'seek error rate' . Do they look OK? 

Some say to only look at '* Sector Count' items (05, C5, C6 ? ), others mention the above three as "critical" attributes as well.

I'm confused whom to believe :classic_laugh: and whether any of these reports should raise some red flags for me.

Serenity                    -> Dell Precision 7560
Millenium Falcon    -> Dell Precision 5530
Axiom                        -> Lenovo ThinkPad P52 (work)
Moldy Crow             -> Dell XPS 15 9550

Spoiler

Millenium Falcon: Dell Precision 5530
    i9-8950HK CPU
    2x16 GB DDR4 2,666 MHz
    1 TB SSD
    NVIDIA Quadro P2000
    UHD 3840 x 2160
    Ubuntu 20.04 / Windows 10 LTSC

Axiom: Lenovo ThinkPad P52
    i7-8850H
    2x32 GB DDR4
    1 TB SSD
    NVIDIA Quadro P2000
    UHD 3840x2160
    Windows 10 Pro

 

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2 hours ago, serpro69 said:

Wanted to ask if someone can help me understand how to read these reports.

It says "good health" on all of them, but still would like to understand if there are any potential issues with these drives, and what to look for in these reports overall.

 

  Reveal hidden contents

photo_2022-11-16_11-59-02.thumb.jpg.557d343893c17aea86becf7f66afdcf5.jpgphoto_2022-11-16_11-59-09.thumb.jpg.018f24d8d16ba52fd2e3b9ab666463e1.jpgphoto_2022-11-16_11-59-18.thumb.jpg.287bb54c239559a3131a46f096985edc.jpgphoto_2022-11-16_11-59-24.thumb.jpg.271079a65d82e1e8ae419b69e3dd20c7.jpg

 

Particularly, 'read error rate', 'spin up time', 'seek error rate' . Do they look OK? 

Some say to only look at '* Sector Count' items (05, C5, C6 ? ), others mention the above three as "critical" attributes as well.

I'm confused whom to believe :classic_laugh: and whether any of these reports should raise some red flags for me.

 

Common sense would dictate that if error rate > 0 then replace the drive immediately.

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6 hours ago, Etern4l said:

Common sense would dictate that if error rate > 0 then replace the drive immediately.

 

That would be my thought as well. But I've read a number of posts where people say "ignore them unless something else critical shows abnormal", especially on Seagate drives.

 

The reason I'm asking is I'm considering buying some used drives to use for backups, but these error counts are kind of making we wary.

 

 

EDIT: here are some interesting reads for anyone interested in this topic:

https://www.backblaze.com/blog/hard-drive-smart-stats/

https://www.backblaze.com/blog/what-smart-stats-indicate-hard-drive-failures/

https://www.backblaze.com/blog-smart-stats-2014-8.html#S1N

 

 

EDIT 2: here several members of /r/datahoarder suggest that read/seek error counts don't mean much generally: https://www.reddit.com/r/DataHoarder/comments/61pmsb/just_got_a_seagate_ironwolf_are_these_smart/

Edited by serpro69
add some blog posts, links

Serenity                    -> Dell Precision 7560
Millenium Falcon    -> Dell Precision 5530
Axiom                        -> Lenovo ThinkPad P52 (work)
Moldy Crow             -> Dell XPS 15 9550

Spoiler

Millenium Falcon: Dell Precision 5530
    i9-8950HK CPU
    2x16 GB DDR4 2,666 MHz
    1 TB SSD
    NVIDIA Quadro P2000
    UHD 3840 x 2160
    Ubuntu 20.04 / Windows 10 LTSC

Axiom: Lenovo ThinkPad P52
    i7-8850H
    2x32 GB DDR4
    1 TB SSD
    NVIDIA Quadro P2000
    UHD 3840x2160
    Windows 10 Pro

 

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