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Fixdisk looping when repairing LBA 0

An Update:
I ran yet another fix disk yesterday (five hours worth) and the disk seems to have 'settled' down. Here are some relevant bits of info:
3931
Code: 
----------------------------------------------------------------------
Sun Feb 17 12:31:38 GMT 2019: Fix-disk run starting...
----------------------------------------------------------------------

Checking disk sda (4096 byte sectors)

Running long disk self test
Error at LBA 603728320
This is an advanced-format disk.
This is an advanced-format disk.
Also checking blocks 603728320 - 603728327 (8 blocks)
Also checking blocks 603728320 - 603728327 (8 blocks)
    Block 603728320  - OK
    Block 603728321  -                      - Repaired
                     - Repaired
    Block 603728322  -                      - Repaired
                     - Repaired
    Block 603728323  -                      - Repaired
                     - Repaired
    Block 603728324  -                      - Repaired
                     - Repaired
    Block 603728325  -                      - Repaired
                     - Repaired
    Block 603728326  -                      - Repaired
                     - Repaired
    Block 603728327  -                      - Repaired
                     - Repaired
Running select disk self test
Error at LBA 603732936
This is an advanced-format disk.
This is an advanced-format disk.
Also checking blocks 603732936 - 603732943 (8 blocks)
Also checking blocks 603732936 - 603732943 (8 blocks)
    Block 603732936  - OK
    Block 603732937  - OK
    Block 603732938  - OK
    Block 603732939  - OK
    Block 603732940  - OK
    Block 603732941  - OK
    Block 603732942  - OK
    Block 603732943  - OK
Running select disk self test
Error at LBA 604252656
This is an advanced-format disk.
This is an advanced-format disk.
Also checking blocks 604252656 - 604252663 (8 blocks)
Also checking blocks 604252656 - 604252663 (8 blocks)
    Block 604252656  - OK
    Block 604252657  -                      - Repaired
                     - Repaired
    Block 604252658  -                      - Repaired
                     - Repaired
    Block 604252659  -                      - Repaired
                     - Repaired
    Block 604252660  -                      - Repaired
                     - Repaired
    Block 604252661  -                      - Repaired
                     - Repaired
    Block 604252662  -                      - Repaired
                     - Repaired
    Block 604252663  -                      - Repaired
                     - Repaired
Running select disk self test
Error at LBA 604252664
This is an advanced-format disk.
This is an advanced-format disk.
Also checking blocks 604252664 - 604252671 (8 blocks)
Also checking blocks 604252664 - 604252671 (8 blocks)
    Block 604252664  - OK
    Block 604252665  -                      - Repaired
                     - Repaired
    Block 604252666  - OK
    Block 604252667  - OK
    Block 604252668  - OK
    Block 604252669  - OK
    Block 604252670  - OK
    Block 604252671  - OK
Running select disk self test
Error at LBA 604252664
This is an advanced-format disk.
This is an advanced-format disk.
Also checking blocks 604252664 - 604252671 (8 blocks)
Also checking blocks 604252664 - 604252671 (8 blocks)
    Block 604252664  - OK
    Block 604252665  - OK
    Block 604252666  - OK
    Block 604252667  - OK
    Block 604252668  - OK
    Block 604252669  - OK
    Block 604252670  - OK
    Block 604252671  - OK
Running select disk self test
Error at LBA 604252672
This is an advanced-format disk.
This is an advanced-format disk.
Also checking blocks 604252672 - 604252679 (8 blocks)
Also checking blocks 604252672 - 604252679 (8 blocks)
    Block 604252672  - OK
    Block 604252673  -                      - Repaired
                     - Repaired
    Block 604252674  -                      - Repaired
                     - Repaired
    Block 604252675  -                      - Repaired
                     - Repaired
    Block 604252676  -                      - Repaired
                     - Repaired
    Block 604252677  -                      - Repaired
                     - Repaired
    Block 604252678  -                      - Repaired
                     - Repaired
    Block 604252679  -                      - Repaired
                     - Repaired
Running select disk self test
Error at LBA 604514736
This is an advanced-format disk.
This is an advanced-format disk.
Also checking blocks 604514736 - 604514743 (8 blocks)
Also checking blocks 604514736 - 604514743 (8 blocks)
    Block 604514736  - OK
    Block 604514737  - OK
    Block 604514738  - OK
    Block 604514739  - OK
    Block 604514740  - OK
    Block 604514741  - OK
    Block 604514742  - OK
    Block 604514743  - OK
Running select disk self test
Error at LBA 604514752
This is an advanced-format disk.
This is an advanced-format disk.
Also checking blocks 604514752 - 604514759 (8 blocks)
Also checking blocks 604514752 - 604514759 (8 blocks)
    Block 604514752  - OK
    Block 604514753  - OK
    Block 604514754  - OK
    Block 604514755  - OK
    Block 604514756  - OK
    Block 604514757  - OK
    Block 604514758  - OK
    Block 604514759  - OK
Running select disk self test
Error at LBA 642980376
This is an advanced-format disk.
This is an advanced-format disk.
Also checking blocks 642980376 - 642980383 (8 blocks)
Also checking blocks 642980376 - 642980383 (8 blocks)
    Block 642980376  - OK
    Block 642980377  - OK
    Block 642980378  - OK
    Block 642980379  - OK
    Block 642980380  - OK
    Block 642980381  - OK
    Block 642980382  - OK
    Block 642980383  - OK
Running select disk self test
Error at LBA 603728320
This is an advanced-format disk.
This is an advanced-format disk.
Also checking blocks 603728320 - 603728327 (8 blocks)
Also checking blocks 603728320 - 603728327 (8 blocks)
    Block 603728320  - OK
    Block 603728321  -                      - Repaired
                     - Repaired
    Block 603728322  -                      - Repaired
                     - Repaired
    Block 603728323  -                      - Repaired
                     - Repaired
    Block 603728324  -                      - Repaired
                     - Repaired
    Block 603728325  - OK
    Block 603728326  - OK
    Block 603728327  - OK
Running select disk self test
Error at LBA 603728360
This is an advanced-format disk.
This is an advanced-format disk.
Also checking blocks 603728360 - 603728367 (8 blocks)
Also checking blocks 603728360 - 603728367 (8 blocks)
    Block 603728360  - OK
    Block 603728361  - OK
    Block 603728362  - OK
    Block 603728363  - OK
    Block 603728364  - OK
    Block 603728365  - OK
    Block 603728366  - OK
    Block 603728367  - OK
Running select disk self test
Error at LBA 604252656
This is an advanced-format disk.
This is an advanced-format disk.
Also checking blocks 604252656 - 604252663 (8 blocks)
Also checking blocks 604252656 - 604252663 (8 blocks)
    Block 604252656  - OK
    Block 604252657  - OK
    Block 604252658  - OK
    Block 604252659  - OK
    Block 604252660  - OK
    Block 604252661  - OK
    Block 604252662  - OK
    Block 604252663  - OK
Running select disk self test
Error at LBA 614473008
This is an advanced-format disk.
This is an advanced-format disk.
Also checking blocks 614473008 - 614473015 (8 blocks)
Also checking blocks 614473008 - 614473015 (8 blocks)
    Block 614473008  - OK
    Block 614473009  -                      - Repaired
                     - Repaired
    Block 614473010  -                      - Repaired
                     - Repaired
    Block 614473011  - OK
    Block 614473012  - OK
    Block 614473013  - OK
    Block 614473014  - OK
    Block 614473015  - OK
Running select disk self test
Error at LBA 603728320
This is an advanced-format disk.
This is an advanced-format disk.
Also checking blocks 603728320 - 603728327 (8 blocks)
Also checking blocks 603728320 - 603728327 (8 blocks)
    Block 603728320  - OK
    Block 603728321  - OK
    Block 603728322  - OK
    Block 603728323  - OK
    Block 603728324  - OK
    Block 603728325  - OK
    Block 603728326  - OK
    Block 603728327  - OK
Running select disk self test
Error at LBA 604252656
This is an advanced-format disk.
This is an advanced-format disk.
Also checking blocks 604252656 - 604252663 (8 blocks)
Also checking blocks 604252656 - 604252663 (8 blocks)
    Block 604252656  - OK
    Block 604252657  -                      - Repaired
                     - Repaired
    Block 604252658  - OK
    Block 604252659  - OK
    Block 604252660  - OK
    Block 604252661  - OK
    Block 604252662  - OK
    Block 604252663  - OK
Running select disk self test
Error at LBA 604252672
This is an advanced-format disk.
This is an advanced-format disk.
Also checking blocks 604252672 - 604252679 (8 blocks)
Also checking blocks 604252672 - 604252679 (8 blocks)
    Block 604252672  - OK
    Block 604252673  - OK
    Block 604252674  - OK
    Block 604252675  - OK
    Block 604252676  - OK
    Block 604252677  - OK
    Block 604252678  - OK
    Block 604252679  - OK
Running select disk self test
Error at LBA 619072176
This is an advanced-format disk.
This is an advanced-format disk.
Also checking blocks 619072176 - 619072183 (8 blocks)
Also checking blocks 619072176 - 619072183 (8 blocks)
    Block 619072176  - OK
    Block 619072177  - OK
    Block 619072178  - OK
    Block 619072179  - OK
    Block 619072180  - OK
    Block 619072181  - OK
    Block 619072182  - OK
    Block 619072183  - OK
Running select disk self test
Error at LBA 620159128
This is an advanced-format disk.
This is an advanced-format disk.
Also checking blocks 620159128 - 620159135 (8 blocks)
Also checking blocks 620159128 - 620159135 (8 blocks)
    Block 620159128  - OK
    Block 620159129  - OK
    Block 620159130  - OK
    Block 620159131  - OK
    Block 620159132  - OK
    Block 620159133  - OK
    Block 620159134  - OK
    Block 620159135  - OK
Running select disk self test
Error at LBA 604252656
This is an advanced-format disk.
This is an advanced-format disk.
Also checking blocks 604252656 - 604252663 (8 blocks)
Also checking blocks 604252656 - 604252663 (8 blocks)
    Block 604252656  - OK
    Block 604252657  - OK
    Block 604252658  - OK
    Block 604252659  - OK
    Block 604252660  - OK
    Block 604252661  - OK
    Block 604252662  - OK
    Block 604252663  - OK
Running select disk self test
Error at LBA 640165448
This is an advanced-format disk.
This is an advanced-format disk.
Also checking blocks 640165448 - 640165455 (8 blocks)
Also checking blocks 640165448 - 640165455 (8 blocks)
    Block 640165448  - OK
    Block 640165449  - OK
    Block 640165450  - OK
    Block 640165451  - OK
    Block 640165452  - OK
    Block 640165453  - OK
    Block 640165454  - OK
    Block 640165455  - OK
Running select disk self test
Error at LBA 603728320
This is an advanced-format disk.
This is an advanced-format disk.
Also checking blocks 603728320 - 603728327 (8 blocks)
Also checking blocks 603728320 - 603728327 (8 blocks)
    Block 603728320  - OK
    Block 603728321  -                      - Repaired
                     - Repaired
    Block 603728322  -                      - Repaired
                     - Repaired
    Block 603728323  -                      - Repaired
                     - Repaired
    Block 603728324  -                      - Repaired
                     - Repaired
    Block 603728325  -                      - Repaired
                     - Repaired
    Block 603728326  -                      - Repaired
                     - Repaired
    Block 603728327  -                      - Repaired
                     - Repaired
Running select disk self test
Error at LBA 603728320
This is an advanced-format disk.
This is an advanced-format disk.
Also checking blocks 603728320 - 603728327 (8 blocks)
Also checking blocks 603728320 - 603728327 (8 blocks)
    Block 603728320  - OK
    Block 603728321  - OK
    Block 603728322  - OK
    Block 603728323  - OK
    Block 603728324  - OK
    Block 603728325  - OK
    Block 603728326  - OK
    Block 603728327  - OK
Running select disk self test
Error at LBA 603729008
This is an advanced-format disk.
This is an advanced-format disk.
Also checking blocks 603729008 - 603729015 (8 blocks)
Also checking blocks 603729008 - 603729015 (8 blocks)
    Block 603729008  - OK
    Block 603729009  -                      - Repaired
                     - Repaired
    Block 603729010  - OK
    Block 603729011  - OK
    Block 603729012  - OK
    Block 603729013  - OK
    Block 603729014  - OK
    Block 603729015  - OK
Running select disk self test
Error at LBA 603728320
This is an advanced-format disk.
This is an advanced-format disk.
Also checking blocks 603728320 - 603728327 (8 blocks)
Also checking blocks 603728320 - 603728327 (8 blocks)
    Block 603728320  - OK
    Block 603728321  - OK
    Block 603728322  - OK
    Block 603728323  - OK
    Block 603728324  - OK
    Block 603728325  - OK
    Block 603728326  - OK
    Block 603728327  - OK
Running select disk self test
Error at LBA 603728320
This is an advanced-format disk.
This is an advanced-format disk.
Also checking blocks 603728320 - 603728327 (8 blocks)
Also checking blocks 603728320 - 603728327 (8 blocks)
    Block 603728320  - OK
    Block 603728321  - OK
    Block 603728322  - OK
    Block 603728323  - OK
    Block 603728324  - OK
    Block 603728325  - OK
    Block 603728326  - OK
    Block 603728327  - OK
Running select disk self test
Error at LBA 603728320
This is an advanced-format disk.
This is an advanced-format disk.
Also checking blocks 603728320 - 603728327 (8 blocks)
Also checking blocks 603728320 - 603728327 (8 blocks)
    Block 603728320  - OK
    Block 603728321  - OK
    Block 603728322  - OK
    Block 603728323  - OK
    Block 603728324  - OK
    Block 603728325  - OK
    Block 603728326  - OK
    Block 603728327  - OK
Running select disk self test
Error at LBA 603728320
This is an advanced-format disk.
This is an advanced-format disk.
Also checking blocks 603728320 - 603728327 (8 blocks)
Also checking blocks 603728320 - 603728327 (8 blocks)
    Block 603728320  - OK
    Block 603728321  -                      - Repaired
                     - Repaired
    Block 603728322  -                      - Repaired
                     - Repaired
    Block 603728323  -                      - Repaired
                     - Repaired
    Block 603728324  -                      - Repaired
                     - Repaired
    Block 603728325  -                      - Repaired
                     - Repaired
    Block 603728326  -                      - Repaired
                     - Repaired
    Block 603728327  -                      - Repaired
                     - Repaired
Running select disk self test
Error at LBA 603728320
This is an advanced-format disk.
This is an advanced-format disk.
Also checking blocks 603728320 - 603728327 (8 blocks)
Also checking blocks 603728320 - 603728327 (8 blocks)
    Block 603728320  - OK
    Block 603728321  -                      - Repaired
                     - Repaired
    Block 603728322  - OK
    Block 603728323  - OK
    Block 603728324  - OK
    Block 603728325  - OK
    Block 603728326  - OK
    Block 603728327  - OK
Running select disk self test
Error at LBA 976932296
This is an advanced-format disk.
This is an advanced-format disk.
Also checking blocks 976932296 - 976932303 (8 blocks)
Also checking blocks 976932296 - 976932303 (8 blocks)
    Block 976932296  - OK
    Block 976932297  -                      - Repaired
                     - Repaired
    Block 976932298  -                      - Repaired
                     - Repaired
    Block 976932299  -                      - Repaired
                     - Repaired
    Block 976932300  -                      - Repaired
                     - Repaired
    Block 976932301  -                      - Repaired
                     - Repaired
    Block 976932302  -                      - Repaired
                     - Repaired
    Block 976932303  -                      - Repaired
                     - Repaired
Running select disk self test
Error at LBA 1416704320
This is an advanced-format disk.
This is an advanced-format disk.
Also checking blocks 1416704320 - 1416704327 (8 blocks)
Also checking blocks 1416704320 - 1416704327 (8 blocks)
    Block 1416704320 - OK
    Block 1416704321 -                      - Repaired
                     - Repaired
    Block 1416704322 -                      - Repaired
                     - Repaired
    Block 1416704323 -                      - Repaired
                     - Repaired
    Block 1416704324 -                      - Repaired
                     - Repaired
    Block 1416704325 -                      - Repaired
                     - Repaired
    Block 1416704326 -                      - Repaired
                     - Repaired
    Block 1416704327 -                      - Repaired
                     - Repaired
Running select disk self test
Error at LBA 1416704328
This is an advanced-format disk.
Also checking blocks 1416704328 - 1416704335 (8 blocks)
This is an advanced-format disk.
Also checking blocks 1416704328 - 1416704335 (8 blocks)
    Block 1416704328 - OK
    Block 1416704329 -                      - Repaired
                     - Repaired
    Block 1416704330 -                      - Repaired
                     - Repaired
    Block 1416704331 -                      - Repaired
                     - Repaired
    Block 1416704332 -                      - Repaired
                     - Repaired
    Block 1416704333 -                      - Repaired
                     - Repaired
    Block 1416704334 -                      - Repaired
                     - Repaired
    Block 1416704335 -                      - Repaired
                     - Repaired
Running select disk self test
Error at LBA 1416704336
This is an advanced-format disk.
This is an advanced-format disk.
Also checking blocks 1416704336 - 1416704343 (8 blocks)
Also checking blocks 1416704336 - 1416704343 (8 blocks)
    Block 1416704336 - OK
    Block 1416704337 -                      - Repaired
                     - Repaired
    Block 1416704338 -                      - Repaired
                     - Repaired
    Block 1416704339 -                      - Repaired
                     - Repaired
    Block 1416704340 -                      - Repaired
                     - Repaired
    Block 1416704341 - OK
    Block 1416704342 - OK
    Block 1416704343 - OK
Running select disk self test
Error at LBA 1416704336
This is an advanced-format disk.
This is an advanced-format disk.
Also checking blocks 1416704336 - 1416704343 (8 blocks)
Also checking blocks 1416704336 - 1416704343 (8 blocks)
    Block 1416704336 - OK
    Block 1416704337 - OK
    Block 1416704338 - OK
    Block 1416704339 - OK
    Block 1416704340 - OK
    Block 1416704341 - OK
    Block 1416704342 - OK
    Block 1416704343 - OK
Running select disk self test
Error at LBA 1416704344
This is an advanced-format disk.
This is an advanced-format disk.
Also checking blocks 1416704344 - 1416704351 (8 blocks)
Also checking blocks 1416704344 - 1416704351 (8 blocks)
    Block 1416704344 - OK
    Block 1416704345 -                      - Repaired
                     - Repaired
    Block 1416704346 -                      - Repaired
                     - Repaired
    Block 1416704347 -                      - Repaired
                     - Repaired
    Block 1416704348 -                      - Repaired
                     - Repaired
    Block 1416704349 -                      - Repaired
                     - Repaired
    Block 1416704350 -                      - Repaired
                     - Repaired
    Block 1416704351 -                      - Repaired
                     - Repaired
Running select disk self test
Error at LBA 1416706888
This is an advanced-format disk.
This is an advanced-format disk.
Also checking blocks 1416706888 - 1416706895 (8 blocks)
Also checking blocks 1416706888 - 1416706895 (8 blocks)
    Block 1416706888 - OK
    Block 1416706889 -                      - Repaired
                     - Repaired
    Block 1416706890 -                      - Repaired
                     - Repaired
    Block 1416706891 -                      - Repaired
                     - Repaired
    Block 1416706892 -                      - Repaired
                     - Repaired
    Block 1416706893 -                      - Repaired
                     - Repaired
    Block 1416706894 -                      - Repaired
                     - Repaired
    Block 1416706895 -                      - Repaired
                     - Repaired
Running select disk self test
Error at LBA 1416709480
This is an advanced-format disk.
This is an advanced-format disk.
Also checking blocks 1416709480 - 1416709487 (8 blocks)
Also checking blocks 1416709480 - 1416709487 (8 blocks)
    Block 1416709480 - OK
    Block 1416709481 -                      - Repaired
                     - Repaired
    Block 1416709482 -                      - Repaired
                     - Repaired
    Block 1416709483 -                      - Repaired
                     - Repaired
    Block 1416709484 -                      - Repaired
                     - Repaired
    Block 1416709485 -                      - Repaired
                     - Repaired
    Block 1416709486 -                      - Repaired
                     - Repaired
    Block 1416709487 -                      - Repaired
                     - Repaired
Running select disk self test
Error at LBA 1416768896
This is an advanced-format disk.
This is an advanced-format disk.
Also checking blocks 1416768896 - 1416768903 (8 blocks)
Also checking blocks 1416768896 - 1416768903 (8 blocks)
    Block 1416768896 - OK
    Block 1416768897 -                      - Repaired
                     - Repaired
    Block 1416768898 -                      - Repaired
                     - Repaired
    Block 1416768899 -                      - Repaired
                     - Repaired
    Block 1416768900 -                      - Repaired
                     - Repaired
    Block 1416768901 -                      - Repaired
                     - Repaired
    Block 1416768902 -                      - Repaired
                     - Repaired
    Block 1416768903 -                      - Repaired
                     - Repaired
Running select disk self test
Error at LBA 1416774032
This is an advanced-format disk.
This is an advanced-format disk.
Also checking blocks 1416774032 - 1416774039 (8 blocks)
Also checking blocks 1416774032 - 1416774039 (8 blocks)
    Block 1416774032 - OK
    Block 1416774033 - OK
    Block 1416774034 - OK
    Block 1416774035 - OK
    Block 1416774036 - OK
    Block 1416774037 - OK
    Block 1416774038 - OK
    Block 1416774039 - OK
Running select disk self test
Error at LBA 1416776600
This is an advanced-format disk.
This is an advanced-format disk.
Also checking blocks 1416776600 - 1416776607 (8 blocks)
Also checking blocks 1416776600 - 1416776607 (8 blocks)
    Block 1416776600 - OK
    Block 1416776601 -                      - Repaired
                     - Repaired
    Block 1416776602 -                      - Repaired
                     - Repaired
    Block 1416776603 -                      - Repaired
                     - Repaired
    Block 1416776604 -                      - Repaired
                     - Repaired
    Block 1416776605 -                      - Repaired
                     - Repaired
    Block 1416776606 -                      - Repaired
                     - Repaired
    Block 1416776607 -                      - Repaired
                     - Repaired
Running select disk self test
Error at LBA 1416913040
This is an advanced-format disk.
This is an advanced-format disk.
Also checking blocks 1416913040 - 1416913047 (8 blocks)
Also checking blocks 1416913040 - 1416913047 (8 blocks)
    Block 1416913040 - OK
    Block 1416913041 -                      - Repaired
                     - Repaired
    Block 1416913042 -                      - Repaired
                     - Repaired
    Block 1416913043 -                      - Repaired
                     - Repaired
    Block 1416913044 -                      - Repaired
                     - Repaired
    Block 1416913045 -                      - Repaired
                     - Repaired
    Block 1416913046 -                      - Repaired
                     - Repaired
    Block 1416913047 -                      - Repaired
                     - Repaired
Running select disk self test
Checking partition tables...

MBR Status: MBR only
GPT Status: not present

Using superblock 0 on sda1
Using superblock 0 on sda2
Using superblock 0 on sda3
LBA: 603728320 is on partition /dev/sda2, start: 2104512, bad sector offset: 601623808
LBA 603728320 maps to file system block 75202976 on /dev/sda2
Block 75202976 is not in use
LBA: 603732936 is on partition /dev/sda2, start: 2104512, bad sector offset: 601628424
LBA 603732936 maps to file system block 75203553 on /dev/sda2
Block 75203553 is not in use
LBA: 604252656 is on partition /dev/sda2, start: 2104512, bad sector offset: 602148144
LBA 604252656 maps to file system block 75268518 on /dev/sda2
Block 75268518 is not in use
LBA: 604252664 is on partition /dev/sda2, start: 2104512, bad sector offset: 602148152
LBA 604252664 maps to file system block 75268519 on /dev/sda2
Block 75268519 is not in use
LBA: 604252664 is on partition /dev/sda2, start: 2104512, bad sector offset: 602148152
LBA 604252664 maps to file system block 75268519 on /dev/sda2
Block 75268519 is not in use
LBA: 604252672 is on partition /dev/sda2, start: 2104512, bad sector offset: 602148160
LBA 604252672 maps to file system block 75268520 on /dev/sda2
Block 75268520 is not in use
LBA: 604514736 is on partition /dev/sda2, start: 2104512, bad sector offset: 602410224
LBA 604514736 maps to file system block 75301278 on /dev/sda2
Block 75301278 is not in use
LBA: 604514752 is on partition /dev/sda2, start: 2104512, bad sector offset: 602410240
LBA 604514752 maps to file system block 75301280 on /dev/sda2
Block 75301280 is not in use
LBA: 642980376 is on partition /dev/sda2, start: 2104512, bad sector offset: 640875864
LBA 642980376 maps to file system block 80109483 on /dev/sda2
Block 80109483 is not in use
LBA: 603728320 is on partition /dev/sda2, start: 2104512, bad sector offset: 601623808
LBA 603728320 maps to file system block 75202976 on /dev/sda2
Block 75202976 is not in use
LBA: 603728360 is on partition /dev/sda2, start: 2104512, bad sector offset: 601623848
LBA 603728360 maps to file system block 75202981 on /dev/sda2
Block 75202981 is not in use
LBA: 604252656 is on partition /dev/sda2, start: 2104512, bad sector offset: 602148144
LBA 604252656 maps to file system block 75268518 on /dev/sda2
Block 75268518 is not in use
LBA: 614473008 is on partition /dev/sda2, start: 2104512, bad sector offset: 612368496
LBA 614473008 maps to file system block 76546062 on /dev/sda2
Block 76546062 is not in use
LBA: 603728320 is on partition /dev/sda2, start: 2104512, bad sector offset: 601623808
LBA 603728320 maps to file system block 75202976 on /dev/sda2
Block 75202976 is not in use
LBA: 604252656 is on partition /dev/sda2, start: 2104512, bad sector offset: 602148144
LBA 604252656 maps to file system block 75268518 on /dev/sda2
Block 75268518 is not in use
LBA: 604252672 is on partition /dev/sda2, start: 2104512, bad sector offset: 602148160
LBA 604252672 maps to file system block 75268520 on /dev/sda2
Block 75268520 is not in use
LBA: 619072176 is on partition /dev/sda2, start: 2104512, bad sector offset: 616967664
LBA 619072176 maps to file system block 77120958 on /dev/sda2
Block 77120958 is not in use
LBA: 620159128 is on partition /dev/sda2, start: 2104512, bad sector offset: 618054616
LBA 620159128 maps to file system block 77256827 on /dev/sda2
Block 77256827 is not in use
LBA: 604252656 is on partition /dev/sda2, start: 2104512, bad sector offset: 602148144
LBA 604252656 maps to file system block 75268518 on /dev/sda2
Block 75268518 is not in use
LBA: 640165448 is on partition /dev/sda2, start: 2104512, bad sector offset: 638060936
LBA 640165448 maps to file system block 79757617 on /dev/sda2
Block 79757617 is not in use
LBA: 603728320 is on partition /dev/sda2, start: 2104512, bad sector offset: 601623808
LBA 603728320 maps to file system block 75202976 on /dev/sda2
Block 75202976 is not in use
LBA: 603728320 is on partition /dev/sda2, start: 2104512, bad sector offset: 601623808
LBA 603728320 maps to file system block 75202976 on /dev/sda2
Block 75202976 is not in use
LBA: 603729008 is on partition /dev/sda2, start: 2104512, bad sector offset: 601624496
LBA 603729008 maps to file system block 75203062 on /dev/sda2
Block 75203062 is not in use
LBA: 603728320 is on partition /dev/sda2, start: 2104512, bad sector offset: 601623808
LBA 603728320 maps to file system block 75202976 on /dev/sda2
Block 75202976 is not in use
LBA: 603728320 is on partition /dev/sda2, start: 2104512, bad sector offset: 601623808
LBA 603728320 maps to file system block 75202976 on /dev/sda2
Block 75202976 is not in use
LBA: 603728320 is on partition /dev/sda2, start: 2104512, bad sector offset: 601623808
LBA 603728320 maps to file system block 75202976 on /dev/sda2
Block 75202976 is not in use
LBA: 603728320 is on partition /dev/sda2, start: 2104512, bad sector offset: 601623808
LBA 603728320 maps to file system block 75202976 on /dev/sda2
Block 75202976 is not in use
LBA: 603728320 is on partition /dev/sda2, start: 2104512, bad sector offset: 601623808
LBA 603728320 maps to file system block 75202976 on /dev/sda2
Block 75202976 is not in use
LBA: 976932296 is on partition /dev/sda2, start: 2104512, bad sector offset: 974827784
LBA 976932296 maps to file system block 121853473 on /dev/sda2
Block 121853473 is not in use
LBA: 1416704320 is on partition /dev/sda2, start: 2104512, bad sector offset: 1414599808
LBA 1416704320 maps to file system block 176824976 on /dev/sda2
Block 176824976 is not in use
LBA: 1416704328 is on partition /dev/sda2, start: 2104512, bad sector offset: 1414599816
LBA 1416704328 maps to file system block 176824977 on /dev/sda2
Block 176824977 is not in use
LBA: 1416704336 is on partition /dev/sda2, start: 2104512, bad sector offset: 1414599824
LBA 1416704336 maps to file system block 176824978 on /dev/sda2
Block 176824978 is not in use
LBA: 1416704336 is on partition /dev/sda2, start: 2104512, bad sector offset: 1414599824
LBA 1416704336 maps to file system block 176824978 on /dev/sda2
Block 176824978 is not in use
LBA: 1416704344 is on partition /dev/sda2, start: 2104512, bad sector offset: 1414599832
LBA 1416704344 maps to file system block 176824979 on /dev/sda2
Block 176824979 is not in use
LBA: 1416706888 is on partition /dev/sda2, start: 2104512, bad sector offset: 1414602376
LBA 1416706888 maps to file system block 176825297 on /dev/sda2
Block 176825297 is not in use
LBA: 1416709480 is on partition /dev/sda2, start: 2104512, bad sector offset: 1414604968
LBA 1416709480 maps to file system block 176825621 on /dev/sda2
Block 176825621 is not in use
LBA: 1416768896 is on partition /dev/sda2, start: 2104512, bad sector offset: 1414664384
LBA 1416768896 maps to file system block 176833048 on /dev/sda2
Block 176833048 is not in use
LBA: 1416774032 is on partition /dev/sda2, start: 2104512, bad sector offset: 1414669520
LBA 1416774032 maps to file system block 176833690 on /dev/sda2
Block 176833690 is not in use
LBA: 1416776600 is on partition /dev/sda2, start: 2104512, bad sector offset: 1414672088
LBA 1416776600 maps to file system block 176834011 on /dev/sda2
Block 176834011 is not in use
LBA: 1416913040 is on partition /dev/sda2, start: 2104512, bad sector offset: 1414808528
LBA 1416913040 maps to file system block 176851066 on /dev/sda2
Block 176851066 is not in use

Sun Feb 17 17:39:31 GMT 2019: Checking partition /dev/sda3...
Pass 1: Checking inodes, blocks, and sizes
Pass 1: I/O read: 163MB, write: 0MB, rate: 28.95MB/s
Pass 2: Checking directory structure
Pass 2: Memory used: 340k/0k (259k/82k), time:  0.01/ 0.00/ 0.01
Pass 2: I/O read: 1MB, write: 0MB, rate: 112.26MB/s
Pass 3: Checking directory connectivity
Peak memory: Memory used: 340k/0k (260k/81k), time:  6.19/ 2.25/ 1.39
Pass 3A: Memory used: 340k/0k (259k/82k), time:  0.00/ 0.00/ 0.00
Pass 3A: I/O read: 0MB, write: 0MB, rate: 0.00MB/s
Pass 3: Memory used: 340k/0k (259k/82k), time:  0.00/ 0.00/ 0.00
Pass 3: I/O read: 0MB, write: 0MB, rate: 0.00MB/s
Pass 4: Checking reference counts
Pass 4: I/O read: 0MB, write: 0MB, rate: 0.00MB/s
Pass 5: Checking group summary information
Pass 5: I/O read: 1MB, write: 0MB, rate: 0.37MB/s

          15 inodes used (0.00%, out of 655776)
           0 non-contiguous files (0.0%)
           0 non-contiguous directories (0.0%)
             # of inodes with ind/dind/tind blocks: 1/1/0
      112539 blocks used (4.29%, out of 2622612)
           0 bad blocks
           1 large file

           4 regular files
           2 directories
           0 character device files
           0 block device files
           0 fifos
           0 links
           0 symbolic links (0 fast symbolic links)
           0 sockets
------------
           6 files
Memory used: 340k/0k (53k/288k), time:  9.92/ 5.19/ 1.41
I/O read: 165MB, write: 1MB, rate: 16.63MB/s
Sun Feb 17 17:39:42 GMT 2019

Sun Feb 17 17:39:42 GMT 2019: Checking partition /dev/sda1...
Pass 1: Checking inodes, blocks, and sizes
Pass 1: I/O read: 17MB, write: 0MB, rate: 22.68MB/s
Pass 2: Checking directory structure
Pass 2: Memory used: 140k/0k (72k/69k), time:  0.00/ 0.00/ 0.00
Pass 2: I/O read: 1MB, write: 0MB, rate: 284.74MB/s
Pass 3: Checking directory connectivity
Peak memory: Memory used: 140k/0k (72k/69k), time:  0.89/ 0.25/ 0.45
Pass 3A: Memory used: 140k/0k (72k/69k), time:  0.00/ 0.00/ 0.00
Pass 3A: I/O read: 0MB, write: 0MB, rate: 0.00MB/s
Pass 3: Memory used: 140k/0k (71k/70k), time:  0.00/ 0.00/ 0.00
Pass 3: I/O read: 0MB, write: 0MB, rate: 0.00MB/s
Pass 4: Checking reference counts
Pass 4: I/O read: 0MB, write: 0MB, rate: 0.00MB/s
Pass 5: Checking group summary information
Pass 5: I/O read: 1MB, write: 0MB, rate: 3.15MB/s

          14 inodes used (0.02%, out of 65808)
           0 non-contiguous files (0.0%)
           0 non-contiguous directories (0.0%)
             # of inodes with ind/dind/tind blocks: 2/0/0
       14112 blocks used (5.36%, out of 263062)
           0 bad blocks
           1 large file

           2 regular files
           3 directories
           0 character device files
           0 block device files
           0 fifos
           0 links
           0 symbolic links (0 fast symbolic links)
           0 sockets
------------
           5 files
Memory used: 140k/0k (50k/91k), time:  1.32/ 0.60/ 0.45
I/O read: 17MB, write: 1MB, rate: 12.83MB/s
Sun Feb 17 17:39:43 GMT 2019

Creating swap file...

Sun Feb 17 17:40:05 GMT 2019: Checking partition /dev/sda2...
Pass 1: Checking inodes, blocks, and sizes
Pass 1: I/O read: 318MB, write: 0MB, rate: 0.69MB/s
Pass 2: Checking directory structure
Pass 2: I/O read: 5MB, write: 0MB, rate: 1.76MB/s
Pass 3: Checking directory connectivity
Peak memory: Memory used: 1192k/0k (1077k/116k), time: 466.31/261.02/ 9.66
Pass 3A: Memory used: 1192k/0k (1092k/101k), time:  0.00/ 0.00/ 0.00
Pass 3A: I/O read: 0MB, write: 0MB, rate: 0.00MB/s
Pass 3: Memory used: 1192k/0k (1072k/121k), time:  0.06/ 0.04/ 0.00
Pass 3: I/O read: 1MB, write: 0MB, rate: 15.61MB/s
Pass 4: Checking reference counts
Pass 4: I/O read: 0MB, write: 0MB, rate: 0.00MB/s
Pass 5: Checking group summary information
Pass 5: I/O read: 58MB, write: 0MB, rate: 0.84MB/s

        9948 inodes used (1.06%, out of 942720)
         105 non-contiguous files (1.1%)
          11 non-contiguous directories (0.1%)
             # of inodes with ind/dind/tind blocks: 360/78/2
    21539340 blocks used (8.93%, out of 241304331)
           0 bad blocks
           8 large files

        8079 regular files
         438 directories
           0 character device files
           0 block device files
           0 fifos
           2 links
        1422 symbolic links (1422 fast symbolic links)
           0 sockets
------------
        9941 files
Memory used: 1192k/0k (708k/485k), time: 537.64/274.82/13.47
I/O read: 381MB, write: 1MB, rate: 0.71MB/s
Sun Feb 17 17:53:40 GMT 2019
Removing extra swap space.

----------------------------------------------------------------------
Sun Feb 17 17:53:42 GMT 2019: Fix-disk run ended.
----------------------------------------------------------------------
3933

3934

Although fix disk has done lots to help I have lost faith in the disk and will be replacing it as soon as the new one arrives.

Thanks for all the help and interest

PS Fixdisk appears to have sorted out the LBA0 problem
 
peterworks said:
I ran yet another fix disk yesterday (five hours worth) and the disk seems to have 'settled' down.
Click to expand...
I am not sure why you think it has settled down; it is still busily reallocating sectors and the count has doubled since your first posts. I fully endorse your decision to replace the hard drive; the sooner the better.
 
MartinLiddle said:
Because LBA0 is where the partition table is stored and if that is unreadable fixdisk doesn't know how the file systems are arranged. I agree it is a bit odd that it gives a lot of trouble because I wouldn't expect it to be written to very often.
...
Click to expand...
fixdisk knows what sort of partition schemes it should find and constructs a new partition table in LBA0 if the original is corrupted and it finds a matching arrangement of filesystems.
Black Hole said:
...Do we need some way to mark [LBA0] bad so the controller remaps it? ...
Click to expand...
fixdisk with the long SMART test option should detect a bad sector 0 and subsequently call (conceptually) hdparm --read-sector || hdparm --repair-sector which should force the sector to be remapped if it is still bad. Problems may occur if the sector is marginal so that the re-read succeeds and the remap is skipped (the sector is removed from the controller's pending list), or, I suppose, if the remapped spare sector is also bad.

It should be possible to force the remap of a marginal sector 0 with some sequence of commands in maintenance mode like these:
Code: 
# set these parameters as appropriate
hdd=/dev/sda
physicalss=4096
logicalss=512

dd if="$hdd" of=/tmp/sector0.bak count=1 bs="$physicalss" conv=noerror &&
  for i in `seq 0 $((physicalss / logicalss - 1))`; do 
      hdparm --repair-sector "$i" --yes-i-know-what-i-am-doing "$hdd"; 
  done &&
dd if=/tmp/sector0.bak of="$hdd" count=1 bs="$physicalss"
 
Thanks hairy_mutley - had a look and, although the disk is recognised, it directs me to Support. I may follow this up later today.
 
That is an awful lot of errors isn't it? Not something I'd expect from a drive that young unless it had been stored badly/exposed to extreme temperatures or similar. That many bad blocks and sector remaps suggests hardware faults with the drive itself - last time I saw something like that it was an old 30GB Maxtor drive years ago where the airtight seal had been pierced and was letting dust into the platters, which I only noticed when I took it out of the PC tower. When I sent fix-disk over mine last week it only found (and repaired) file system errors.

Definitely would follow it up with Seagate and see if they will replace free of charge. The original SSD failed in my HTPC (kept wiping everything; this is why you always keep backups especially of the OS drives) and when I told Kingston and provided serial number etc they traced it to a faulty batch. Their solution? Send me out a drive of the same capacity with far better read/write speeds and a small box with postage paid so I could return the faulty one to them. This replacement is still running flawlessly nearly seven years later, with SSDlife reporting it'll last until 2033 or so (basically it'll outlive the hardware it's hooked up to).
 
peterworks said:
I purchased the disk in December 2017 so not that old. I have contacted the seller (on Amazon) but do not hold out much hope.
Click to expand...
peterworks said:
I have emailed Seagate support - they promise contact within 24 hours. Will update as and when...
Click to expand...
To finalise:
No reply from the seller on Amazon.
Seagate support responded in a timely fashion and stated that it was an OEM disk so they could not help.
Contacted Amazon and had a 'Chat'. Great outcome in that I will return it and get a full refund.
Happy days (and my new 2Tb disk is working well...)
 
peterworks said:
Seagate support responded in a timely fashion and stated that it was an OEM disk so they could not help.
Click to expand...
I assume you didn't buy the disk as part of some other product (eg. original Humax) but as a replacement disk - so how does it become an OEM disk?
Sounds like Seagate don't want to accept responsibilty. Still, that is completely academic now as Amazon agreed return/refund. 👍
 
It was a 'new' replacement disk so OEM was a surprise. Amazon were very quick to offer the refund so perhaps there is a back story (!?!)
Still who cares (as long as the refund appears)
 
Yep Amazon tend to be excellent with getting it right, or correctly sorting it out when it isn't. 99% of what I order is one day delivery via Prime as promised and they've only messed one of my orders up in a decade.
 
I believe it is not uncommon for sellers on A (and elsewhere) to supply OEM products. I got what turned out to be OEM for my NAS a couple of years ago.
 
@peterworks Hi Peterworks, I've just started having similar problems with my drive and fixdisk is running at the moment and I'm getting the same "Error at LBA 0" with the Running short disk self test process counting down from 62 and stopping around 29. This has been looping for about an hour now. How long did you're go on for

@/df is there a way to tell it to ignore the LBA 0 and carry on checking the rest of the driver? I've run using the -y option so I don't have to stay by the PC all the time.

Also, is there a way to transfer all teh data off the HDD to a USB drive via the humax command line whilst in maintenance mode as booting up is becoming a problem but stable in maintenance mode? (all files decrypted)

Thanks

Rodp
 
rodp said:
This has been looping for about an hour now. How long did you're go on for
Click to expand...
Looking at the code in my posts:
Fixdisk in post 3:
Sat Feb 16 15:35:13 GMT 2019: Fix-disk run starting...
Sat Feb 16 16:01:18 GMT 2019: Fix-disk run ended.
26 minutes

Fixdisk in post 21:
Sun Feb 17 12:31:38 GMT 2019: Fix-disk run starting...
Sun Feb 17 17:53:42 GMT 2019: Fix-disk run ended.
5 hours 22 minutes
 
peterworks said:
Fixdisk in post 21:
Sun Feb 17 12:31:38 GMT 2019: Fix-disk run starting...
Sun Feb 17 17:53:42 GMT 2019: Fix-disk run ended.
5 hours 22 minutes
Click to expand...

ok presume that's the whole process? Mine fixed about 10 bad sectors which only took a matter of minutes but then got to LBA 0 error and has since then been looping with the same message.

Is the LBA 0 likely to be the last thing it does when running?

Code: 
/dev/sda:
re-writing sector 0: succeeded
This is an advanced-format disk.
Also checking blocks 0 - 7 (8 blocks)

     Block 0                    - OK
     Block 1                    - OK
     Block 2                    - OK
     Block 3                    - OK
     Block 4                    - OK
     Block 5                    - OK
     Block 6                    - OK
     Block 7                    - OK

Running short disk self test
Waiting... [counts down from 62 to 29 then repeats]

Do you think it's still fixing things or do you think it's not really doing anything and I might aswell give up and cancel the operation (ctrl + ] I think) take the HDD out and put it in a USB caddy and see if I can recover the recordings.

Thanks

Rodp

On another note, when copying off the data. What folder(s) do I need to back up in order to carry over all the custom firmware settings?

Thanks

Rod
 
rodp said:
ok presume that's the whole process?
Click to expand...
The log (as posted) shows the start time of fixdisk and the end time of fixdisk so assume that's the whole process.
Looking at the code in post 3 it seems that LBA0 is the first thing it looks at.
 
rodp said:
tell it to ignore the LBA 0
Click to expand...
So far as I know, if LBA0 is flakey there is no way to recover from that because LBA0 is where the disk parameters are stored. The only way would be to use manufacturer's tools to map a new sector in its place.
 
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