It's likely that, as a Managed Service Provider, you are already providing services for:
Disaster Recovery (DRaaS)
Data Backup (BaaS)
Archive as a Service (AaaS) puts someone besides the business owner (or their staff) in charge of all aspects of archiving data into the cloud. The service provider will work to store data into the archive while keeping it relatively accessible.
MSPs can offer different types of data archival depending on the client's specific needs.
The main goal is preserving data for long-term retention purposes while protecting the record's authenticity, integrity, and reliability. Even if the client doesn't access the data for a long time, it's still there and completely intact.