=== Uploading big files > 512MB ===

https://doc.owncloud.org/server/9.0/admin_manual/configuration_files/big_file_upload_configuration.html


=== How to change upload limits and fix upload problems ===

https://central.owncloud.org/t/how-to-change-upload-limits-and-fix-upload-problems/851


=== Uploading large files over 4GB ===

https://forum.owncloud.org/viewtopic.php?t=34980