• USB hard disk read errors


    I left ddrescue run during my vacation. It was close to 60% after 4 days.

  • 1TB can take a while… my last ddrescue i do with a old thinkpad open up, and put a massive cooling pipe on the CPU, and the hd too aluminium and fan…this takes one week almost… with dualcore CPU and 1TB Disk…

  • Hello! Got back from holiday trip last night.
    ddrescue was working meanwhile. Today it is at something like 70%. 179 days left :)

    Seems that I cannot much use the PC this year!? ;)

    However, it says it has recovered 69% of the data. Can’t wait to see…one day!

  • holy crap!
    179 Days?
    hope that the mathematics of 69% in one week is the right one ;)📈

  • Here are the precise numbers now that I can see them:

    GNU ddrescue 1.21
    Press Ctrl-C to interrupt
    Initial status (read from mapfile)
    rescued: 2851 MB, errsize: 0 B, errors: 0

    Current status
    ipos: 690361 MB, non-trimmed: 1472 MB, current rate: 196 kB/s
    ipos: 690886 MB, non-trimmed: 1540 MB, current rate: 1927 B/s
    opos: 690886 MB, non-scraped: 0 B, average rate: 701 kB/s
    non-tried: 339302 MB, errsize: 0 B, run time: 10d 19h 55m
    rescued: 659226 MB, errors: 0, remaining time: 304d 11h
    percent rescued: 65.91% time since last successful read: 0s
    Copying non-tried blocks… Pass 1 (forwards)

    Takes still a while… :)

  • Today’s numbers a little different:

    GNU ddrescue 1.21
    Press Ctrl-C to interrupt
    Initial status (read from mapfile)
    rescued: 2851 MB, errsize: 0 B, errors: 0

    Current status
    ipos: 690361 MB, non-trimmed: 1472 MB, current rate: 196 kB/s
    ipos: 720514 MB, non-trimmed: 1730 MB, current rate: 0 B/s
    opos: 720514 MB, non-scraped: 0 B, average rate: 652 kB/s
    non-tried: 310268 MB, errsize: 0 B, run time: 12d 3h 47m
    rescued: 688070 MB, errors: 0, remaining time: 88d 7h 42m
    percent rescued: 68.80% time since last successful read: 35s
    Copying non-tried blocks… Pass 1 (forwards)

  • And the most current numbers:

    GNU ddrescue 1.21
    Press Ctrl-C to interrupt
    Initial status (read from mapfile)
    rescued: 2851 MB, errsize: 0 B, errors: 0

    Current status
    ipos: 690361 MB, non-trimmed: 1472 MB, current rate: 196 kB/s
    ipos: 691390 MB, non-trimmed: 2737 MB, current rate: 32768 B/s
    opos: 691390 MB, non-scraped: 0 B, average rate: 581 kB/s
    non-tried: 32809 MB, errsize: 0 B, run time: 19d 3h 9m
    rescued: 964521 MB, errors: 0, remaining time: 47d 15h 22m
    percent rescued: 96.44% time since last successful read: 0s
    Copying non-tried blocks… Pass 2 (backwards)

    How many passes will ddrescue do if the number is not passed as an argument?

    If ddrescue can somehow save those files on that USB drive, then I deleted some files in vain when I tried to copy some of them away from there… The copying did not work, if the process got stuck in some file.

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