According to Veeam documentation, migrating a legacy VBR (v11) to a new one (v12.1) requires disabling the services on the current server. This legacy server retains the ownership of all the Azure blobs used as scale-out repositories. All blobs are used to long-term backups. Regular short-term backup jobs are configured to local disk repositories. My question lies in the moment after the restore process ends (with the option to migrate flaged). Do I just need to request ownership of the blob or is some additional procedure required to re-enable this scale-out repositories. Is there any chance to lose the chain inside this blobs after the restore? If restore fails somehow, can I just jump back to the legacy server? I cannot risk losing the backup chain held there, cause we are talking of dozens of TBs.
If there is some guide to migrate VBR with Azure blobs or anyone has ever had this need somehow, can please share the steps taken?