Could not open backup manager: "Unknown data type"

Created:

2016-11-16 12:51:56 UTC

Modified:

2017-04-24 11:13:50 UTC

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Could not open backup manager: "Unknown data type"

Applicable to:

  • Plesk

Symptoms

When I go to Tools & Settings > Backup Manager in Parallels Plesk Panel the following error is shown:

Unknown data type

Cause

  1. Backup task list was corrupted.

  2. There are missing schema files.

Resolution

  1. Remove old task files from task directory:

    Windows:

    %plesk_dir%\\PMM\   asks\\

    Linux:

    /usr/local/psa/PMM/tasks/
  2. Verify that schemas files exist:

    # ls -la /usr/local/psa/PMM/schemas/
    total 76
    drwxr-xr-x 2 root root 4096 Apr 30 01:40 .
    drwxr-xr-x 7 root root 4096 Apr 30 01:40 ..
    -rw-r--r-- 1 root root 2799 Aug 19 2013 execution_result.xsd
    -rw-r--r-- 1 root root 59220 Apr 30 01:40 pmm_api_xml_protocols.xsd
    -rw-r--r-- 1 root root 1930 Aug 19 2013 xml_transform.xsd

    If not, place the files using following instructions:

    # cd /root/
    # wget http://kb.plesk.com/Attachments/kcs-6947/schemas.tgz
    # tar zxvf ./schemas.tgz
    # mkdir /usr/local/psa/PMM/schemas/
    # cp ./schemas/* /usr/local/psa/PMM/schemas/
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