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Cache Pool Unmountable: unsupported or no file system

Peter Harris
in General Support

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Had a VM failure The VM happened to be my Mail  server.  Restarted server and the following message reported "Cache pool unmountable". Cache pool consists of 2 x 480GB SSD's.  No Vm's availabe  No dockers available

evil-monkey-diagnostics-20241127-2112.zip

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    • Solved by JorgeB

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    • Community Expert
    • Solution

    Try:

      

    btrfs rescue zero-log /dev/sdd1

     

    Then restart the array, if the pool mounts, and since btrfs is detecting data corruption on both devices, recommend running memtest, then scrub the pool.

  • Quote
    • Author

    Many Thanks for the quick response all back up and working,   Will run some tests and decide what to do as far as swapping out the cache drives or whatever

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    • Like 1

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