Data can be uploaded to OBS using multipart uploads. Fragments are generated, if a multipart upload fails because of the following reasons (included but not limited to):
The network is in poor conditions, and the connection to the OBS server is interrupted frequently.
The upload task is manually suspended.
The device is faulty.
The device is powered off suddenly.
On OBS Console, storage used by fragments is charged. Clear fragments when they are not needed. If a file upload task fails, upload the file again.
Generated fragments take up storage space that is billable.
In the bucket list, click the bucket you want to operate. The Overview page is displayed.
In the navigation pane, choose Objects.
Click Fragments, select the fragment that you want to delete, and then click Delete on the right of the fragment.
You can also select multiple fragments and click Delete above fragment list to batch delete them.
Click Yes to confirm the deletion.