Releasing files
Release data repository tasks release file data from your FSx for Lustre file system to free up space for new files. Releasing a file retains the file listing and metadata, but removes the local copy of that file's contents. If a user or application accesses a released file, the data is automatically and transparently loaded back onto your file system from your linked Amazon S3 bucket.
Note
Release data repository tasks are not available on FSx for Lustre 2.10 file systems.
The parameters File system paths to release and Minimum duration since last access determine which files will be released.
File system paths to release: Specifies the path from which files will be released.
Minimum duration since last access: Specifies the duration, in days, such that any file not accessed in that duration should be released. The duration since a file was last accessed is calculated by taking the difference between the release task create time and the last time a file was accessed (maximum value of
atime,mtime, andctime).
Files will only be released along the file path if they have been exported to S3
and have a duration since last access that is greater than the minimum duration since
last access value. Providing a minimum duration since last access of 0
days will release files independent of their duration since last access.
Note
The use of wildcards to include or exclude files for release is not supported.
Release data repository tasks will only release data from files that have already
been exported to a linked S3 data repository. You can export data to S3 using either
the automatic export feature, an export data repository task, or HSM commands. To verify
that a file has been exported to your data repository, you can run the following command.
A return value of states: (0x00000009) exists archived indicates that the
file has successfully been exported.
sudo lfs hsm_statepath/to/export/file
Note
You must run the HSM command as the root user or using sudo.
To release file data on a regular interval, you can schedule a recurring release data repository task using Amazon EventBridge Scheduler. For more information, see Getting started with EventBridge Scheduler in the Amazon EventBridge Scheduler User Guide.
