Corrupt archive 7z from Cobian 10

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2013-05-06
2013-05-06
  • Jan Polasek
    Jan Polasek
    2013-05-06

    Hello
    I´m using Cobian Backup 10 for creating file backup. My file server has died, and I want to recover files from created 7z archive. But when I try open or extract files from archive I see error - Cannot open file as archive. File is cca 65GB large. Cobian created also incremental archive which I can extract because is not so big. It has max. 2GB. It´s any way to recover files from archive?

    Exact size of archive is 67191701504

    and first 32 bytes
    37 7A BC AF 27 1C 00 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 68 33 BE 1C 86 30 77 60 F4 A4 84 2A 40 0C 1C

    last 64
    95 C2 3A 48 0A 3E CD E8 6F BA 16 D6 3F 24 59 BD CB CB 25 03 F4 37 EA C6 8C 14 1A AB B8 79 9F 30 A5 F5 E8 00 0C 02 A1 04 C5 53 2A CD A5 02 9E 79 B6 2E 38 D9 F2 1E 08 27 2D 34 12 81 4A A4 32 28

    Many thanks for any response
    Jan

     
  • Igor Pavlov
    Igor Pavlov
    2013-05-06

    Read this thread:
    http://sourceforge.net/p/sevenzip/discussion/45798/thread/e34b4a1d/

    You can split you archive into 2 GB parts.
    And try to recover only from first 2 GB part.
    It's simpler to work with small files.
    If you can recover something from 2 GB part, you can try to recover from full archive too.