We have many tables lingering in production that we don't rely on them anymore but we need to keep them around for various reasons. These include a dedicated table in English Wikipedia's database for the board election of 2005 that we are still keeping around (2023 is about to end..) or cur table (T342772: Drop cur table in production) or many more random tables (moodbar_feedback, etc.).
It would be great to have a private swift container to leave SQL dump of these tables there and drop them from production.
To avoid scope creep (I can easily imagine this container turn into "Wikimedia Dropbox"), this should be only accessed by DBAs and store only mariadb tables (and relevant metadata) and nothing more.
Backups was considered as an option but deemed not fitting for this usecase as they are not designed to store data "forever".