We are running a migration from one Confluence tenant from another and are using the data copy tool:
https://support.atlassian.com/organization-administration/docs/copy-confluence-data/
In testing with a small number of spaces this worked without issue, but the documentation says that it can cause downtime. Which tenant would experience the downtime - the source or the destination? And do we know if the tenant would be hard down or if some spaces may just have difficulty loading?