Constantly increasing bad sectors.

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jarpit96

Prominent
Jul 13, 2017
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My laptop hard disk shows increasing bad sectors.
Specifications:

  • Laptop: Compaq 15 Notebook PC (J8B65PA#ACJ)
    Hard Disk: HGST HTS545050A7 (500GB)
    OS: Ubuntu 16.04 64bit
I use the disks program in Ubuntu to see bad sectors in my disk. I recorded the number of bad sectors:

  • 589896 bad sectors : Wed May 17 22:33:05 IST 2017
    655440 bad sectors : Wed May 24 21:38:26 IST 2017
    983160 bad sectors : Thu Jul 13 22:28:08 IST 2017
Is this a reason for worry?
The smart analysis tool shows "Threshold not exceeded" and "Disk is OK, 983160 bad sectors".
 
Solution
L
yep, in theory, it has still been seemingly harmless. but.. the number is increasing quite fast and while your disk has like 122,070,312 sectors total, so you still have 121,087,152 sectors that are fine (assuming 4KB sectors) at any point, bad sector might take with it something that causes OS to stop working and/or you lose some important data.

As was pointed out, a few are no real concern but when the number keeps rising, it means there is somekind of issue with the disk. (one of the heads is slowly scratching the surface to oblivion or something else) and sooner or later it would fail completely.
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birne

birne

Reputable
May 19, 2015
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if a hdd begins to have bad sectors, or strange noise, 'suddenly'slow etc. then it is a sign that it wont last too long.
I recomend backing up your data and getting a new one. (ssd's aren't too expensive and worth every penny ;))
 
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little_me

Splendid
May 9, 2015
1,670
39
21,740
yep, in theory, it has still been seemingly harmless. but.. the number is increasing quite fast and while your disk has like 122,070,312 sectors total, so you still have 121,087,152 sectors that are fine (assuming 4KB sectors) at any point, bad sector might take with it something that causes OS to stop working and/or you lose some important data.

As was pointed out, a few are no real concern but when the number keeps rising, it means there is somekind of issue with the disk. (one of the heads is slowly scratching the surface to oblivion or something else) and sooner or later it would fail completely.
 
Upvote 1 Downvote
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