Using data repository tasks to release files

Use the following procedures to create tasks that release files from the file system by using the Amazon FSx console and CLI. Releasing a file retains the file listing and metadata, but removes the local copy of that file's contents.

To release files (console)

1. Open the Amazon FSx console at https://console.aws.amazon.com/fsx/.

2. In the left navigation pane, choose File systems, then choose your Lustre file system.

3. Choose the Data repository tab.

4. In the Data repository associations pane, choose the data repository association that you want to create the release task for.

5. For Actions, choose Create release task. This choice is available only if the file system is linked to a data repository on S3. The Create release data repository task dialog appears.

   

6. In File system paths to release, specify up to 32 directories or files to release from your Amazon FSx file system by providing the paths to those directories or files. The paths that you provide must be relative to the mount point of the file system. For example, if the mount point is /mnt/fsx and /mnt/fsx/path1 is a file on the file system that you want to release, then the path to provide is path1. To release all files in the file system, specify a forward slash (/) as the path.

   Note

   If a path that you provide isn't valid, the task fails.

7. For Minimum duration since last access, specify the the duration, in days, such that any file not accessed in that duration should be released. Last access time is calculated using the maximum value of atime, mtime, and ctime. Files with a last access duration period greater than minimum duration since last access (relative to the task create time) will be released. Files with a last access duration period less than this number of days won't be released, even if they are in the File system paths to release field. Provide a duration of 0 days to release files independent of duration since last access.

8. (Optional) Under Completion report, choose Enable to generate a task completion report that provides details about the files that meet the scope provided in Report scope. To specify a location for Amazon FSx to deliver the report, enter a relative path on the file system's linked S3 data repository for Report path.

9. Choose Create data repository task.

   A notification at the top of the File systems page shows the task that you just created in progress.

To view the task status and details, in the Data Repository tab, scroll down to Data Repository Tasks. The default sort order shows the most recent task at the top of the list.

To view a task summary from this page, choose Task ID for the task you just created.

To release files (CLI)

• Use the create-data-repository-task CLI command to create a task that releases files on your FSx for Lustre file system. The corresponding API operation is CreateDataRepositoryTask.

  Set the following parameters:

  • Set --file-system-id to the ID of the file system that you are releasing files from.

  • Set --paths to the paths on the file system from which the data will be released. If a directory is specified, files within the directory are released. If a file path is specified, only that file is released. To release all files in the file system that been exported to a linked S3 bucket, specify a forward slash (/) for the path.

  • Set --type to RELEASE_DATA_FROM_FILESYSTEM.

  • Set the --release-configuration DurationSinceLastAccess options as follows:

    • Unit – Set to DAYS.

    • Value – Specify an integer that represents the the duration, in days, such that any file not accessed in that duration should be released. Files that were accessed during a period less than this number of days won't be released, even if they are in the --paths parameter. Provide a duration of 0 days to release files independent of duration since last access.

  This sample command specifies that files that been exported to a linked S3 bucket and meet the --release-configuration criteria will be released from the directories in the specified paths.

  $ aws fsx create-data-repository-task \
      --file-system-id fs-0123456789abcdef0 \
      --type RELEASE_DATA_FROM_FILESYSTEM \
      --paths path1,path2/file1 \
      --release-configuration '{"DurationSinceLastAccess":{"Unit":"DAYS","Value":10}}' \
      --report Enabled=false

  After successfully creating the data repository task, Amazon FSx returns the task description as JSON.

After creating the task to release files, you can check the status of the task. For more information about viewing data repository tasks, see Accessing data repository tasks.