Good overview of Cloud Manager above. Let me clarify a few points about SnapMirror Cloud. SM-C provides replication of snapshots from ONTAP to S3-compliant object storage. SM-C technology is a series of APIs and requires an orchestration app. Several 3rd party backup apps provide support for SM-C to provide orchestration of backup workflows, and System Manager 9.9.1+ also orchestrates on-prem ONTAP to StorageGRID and ONTAP S3 endpoints – but does not support public S3 targets. SM-C is not free and does require an ONTAP end user license for workflows to StorageGRID / ONTAP S3. NetApp’s Cloud Manager utilizes SM-C technology, but is sold as a Cloud Backup service and does not require SM-C end user license. Also there are some other differences between SM-C and AltaVault:
AltaVault receives NFS, SMBv3 and NDMP data transfers then translates backup data into S3 objects and replicates to many S3-compliant endpoints. SM-C replicates ONTAP snapshots (not native file data) and converts into S3 objects. Backups using SM-C will use a different data format than AltaVault.
HTH