Is it possible to rename an archive in Amazon Glacier?
The documentation says:
After you upload an archive, you cannot update its content or its description. The only way you can update the archive content or its description is by deleting the archive and uploading another archive.
That would lead me to think that it's not possible, but I'm not sure whether the file name is considered part of the archive description.
No, the file name is part of the archive content, therefore you can't update it.
No, as the file name usually stored as part of archive description (depends on your client).