@duponin i think it stays in glacier and when you restore it makes a temporary copy in S3, it doesn't need to "go back" because it stays in glacier the whole time until you explicitly delete it
@duponin i don't think it's safe to assume that the S3 docs apply to anything other than S3. does scaleway even have a glacier-equivalent? AFAIK it's never been leaked how glacier actually works - some guess disc-based, some are guessing tape, some are guessing slow hdds that are usually powered down... but nothing authoritative.
@sneak with AWS too we don’t really know how it is under the hood Scaleway tries to reproduce the best as possible AWS (that’s my feeling) Object Storage and C14 support S3 API, but documentation about how it behaves is a bit tricky to find