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  1. Home
  2. NetBackup™ for Cloud Object Store Administrator's Guide
  3. Troubleshooting
  4. After backup, some files in the shm folder and shared memory are not cleaned up.
NetBackup™ for Cloud Object Store Administrator's Guide

After backup, some files in the shm folder and shared memory are not cleaned up.

Explanation:

In backups with dynamic multi-streaming, a crash of some NetBackup process may cause the backup to be partially successful or fail. In such cases, some files and the shared memory are not cleaned up. These files and buffers are small and should not take up much space.

Workaround:

Do the following:

  • To clear files, go to the folder on the backup host:

    <install_directory>/netbackup/db/config/shm/

    These folders contain files in the format: <parentid_streamNumber>, for the failed or partial backups that have finished. Delete the files.

  • To clear the shared memory:

    • You can view the shared memory in the backup host, using the command:

      ipcs -m

    • Wait for all the running backups and restores to finish, and then restart the backup host. This clears the shared memory.

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