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Re: linux isn't robust enough to handle bad sector??

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On 9/19/20 10:37 PM, Long Wind wrote:

> i'm creating FS on problem disk
> though it has passed short and long tests by smart tool
> i meet bad sector, mkfs complains forever
> Ctrl+C can't kill it, what should i do NOW??
>
> [ 2719.089156] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 
> 0x6 frozen
> [ 2719.089171] ata4.00: failed command: WRITE DMA EXT
> [ 2719.089185] ata4.00: cmd 35/00:00:18:68:e1/00:08:0c:00:00/e0 tag 0 
> dma 1048576 out
>                         res 40/00:01:01:4f:c2/00:00:00:00:00/00 Emask 
> 0x4 (timeout)
> [ 2719.089192] ata4.00: status: { DRDY }
> [ 2719.089209] ata4: hard resetting link
> [ 2719.404384] ata4: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
> [ 2719.412162] ata4.00: configured for UDMA/33
> [ 2719.412199] ata4: EH complete
> [ 2749.813187] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 
> 0x6 frozen
> [ 2749.813201] ata4.00: failed command: WRITE DMA EXT
> [ 2749.813208] ata4.00: cmd 35/00:00:18:68:e1/00:08:0c:00:00/e0 tag 0 
> dma 1048576 out
>                         res 40/00:01:01:4f:c2/00:00:00:00:00/00 Emask 
> 0x4 (timeout)
> [ 2749.813212] ata4.00: status: { DRDY }

One thing to check is whether part of what's happening is driven by the 
onboard disk driver.  Consumer grade drives try very hard to read bad 
blocks, leading to very long timeouts that drag a machine to its knees.  
(Learned this the hard way, trying to figure out why a server, with 
raided disks, just kept going slower... and slower... and slower.)

By contrast, server-grade drives just give up after the first try - 
letting RAID do its thing.

You might want to check the specs on your drive, and run a deep set of 
diagnostics, starting with the more intrusive smart diagnostics.

Miles Fidelman



-- 
In theory, there is no difference between theory and practice.
In practice, there is.  .... Yogi Berra

Theory is when you know everything but nothing works.
Practice is when everything works but no one knows why.
In our lab, theory and practice are combined:
nothing works and no one knows why.  ... unknown

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linux isn't robust enough to handle bad sector?? Long Wind <longwind2@yahoo.com> - 2020-09-20 04:40 +0200
  Re: linux isn't robust enough to handle bad sector?? Gene Heskett <gheskett@shentel.net> - 2020-09-20 05:20 +0200
  Re: linux isn't robust enough to handle bad sector?? Dan Ritter <dsr@randomstring.org> - 2020-09-20 06:00 +0200
    Re: linux isn't robust enough to handle bad sector?? Long Wind <longwind2@yahoo.com> - 2020-09-20 07:00 +0200
  Re: linux isn't robust enough to handle bad sector?? David Christensen <dpchrist@holgerdanske.com> - 2020-09-20 08:20 +0200
    Re: linux isn't robust enough to handle bad sector?? Long Wind <longwind2@yahoo.com> - 2020-09-20 10:00 +0200
      Re: linux isn't robust enough to handle bad sector?? David Christensen <dpchrist@holgerdanske.com> - 2020-09-20 10:40 +0200
        Re: linux isn't robust enough to handle bad sector?? Reco <recoverym4n@enotuniq.net> - 2020-09-20 10:50 +0200
          Re: linux isn't robust enough to handle bad sector?? David Christensen <dpchrist@holgerdanske.com> - 2020-09-21 06:00 +0200
            Re: linux isn't robust enough to handle bad sector?? Reco <recoverym4n@enotuniq.net> - 2020-09-21 07:30 +0200
            Re: linux isn't robust enough to handle bad sector?? Miles Fidelman <mfidelman@meetinghouse.net> - 2020-09-22 00:20 +0200
        Re: linux isn't robust enough to handle bad sector?? Long Wind <longwind2@yahoo.com> - 2020-09-20 11:40 +0200
          Re: linux isn't robust enough to handle bad sector?? deloptes <deloptes@gmail.com> - 2020-09-20 14:30 +0200
        Re: linux isn't robust enough to handle bad sector?? Long Wind <longwind2@yahoo.com> - 2020-09-22 06:20 +0200
          Re: linux isn't robust enough to handle bad sector?? Long Wind <longwind2@yahoo.com> - 2020-09-22 06:50 +0200
            Re: linux isn't robust enough to handle bad sector?? David Christensen <dpchrist@holgerdanske.com> - 2020-09-22 08:50 +0200
              Re: linux isn't robust enough to handle bad sector?? Long Wind <longwind2@yahoo.com> - 2020-09-22 12:20 +0200
                Re: linux isn't robust enough to handle bad sector?? David Wright <deblis@lionunicorn.co.uk> - 2020-09-22 15:10 +0200
                Re: linux isn't robust enough to handle bad sector?? David Christensen <dpchrist@holgerdanske.com> - 2020-09-23 00:50 +0200
                Re: linux isn't robust enough to handle bad sector?? David Christensen <dpchrist@holgerdanske.com> - 2020-09-22 23:00 +0200
                Re: linux isn't robust enough to handle bad sector?? Anssi Saari <as@sci.fi> - 2020-09-23 09:20 +0200
  Re: linux isn't robust enough to handle bad sector?? Reco <recoverym4n@enotuniq.net> - 2020-09-20 10:00 +0200
  Re: linux isn't robust enough to handle bad sector?? Miles Fidelman <mfidelman@meetinghouse.net> - 2020-09-20 18:30 +0200

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