prglaz

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prglaz

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November 3rd, 2016 05:00

Deduplication file check

Hello, I wanted to ask you if you know of a way to check the health of the files that were deduplicated by the Data Domain DD2500 so we know that they are not corrupted.

Thank you.

Regards,

Pablo

  • umichklewis

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    Posted November 3rd, 2016 12:00

    Sure - you can obtain a small amount of info about any file written to DD from the CLI.

    Use 'filesys show file-info ' and 'filesys show compression ' :

    sysadmin@dd860-bbc-mgmt# filesys show file-info  /data/col1/cifs_sql/ABCSQL3/ABCSQL3_Parking_Full_201606160100.safe

    Name           /data/col1/cifs_sql/ABCSQL3/ABCSQL3_Parking_Full_201606160100.safe

    Storage Unit   Active

    Status         Ready

    Diskgroups     dg1,dg2,dg3,dg4,dg5

    sysadmin@dd860-bbc-mgmt# filesys show compression /data/col1/cifs_sql/ABCSQL3/ABCSQL3_Parking_Full_201606160100.safe

    Total files: 1;  bytes/storage_used: 11.1

           Original Bytes:          160,248,052

      Globally Compressed:           14,191,772

       Locally Compressed:           14,312,944

                Meta-data:               60,344

    Let us know if that helps!

    Karl

  • umichklewis

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    Posted November 3rd, 2016 06:00

    The Data Domain handles file integrity at the block level as part of the process to write files and perform garbage collection.  There is no user-facing command to check file integrity.  You can, however, view details on a file from the CLI.

    Let us know if that helps!

    Karl

  • prglaz

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    Posted November 3rd, 2016 07:00

    Thank you for the information! Can you comment about those details on the CLI? do you refer to some specific check?

    Regards,

    Pablo

  • prglaz

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    Posted November 3rd, 2016 13:00

    Thank you very much!!

    Regards,

    Pablo