Backup as a Service (BaaS) is a managed service model for the delivery of backup and recovery services via an online service provider, rather than traditional on-site backups.
Backup as a service is often confused with cloud storage, where storage is provided as-a-service to function as a cloud based backup target. It should be noted that cloud storage is just a component or enabler of backup as a service, but cloud storage alone does not achieve the objectives of backup as a service.
Backup as a service is typically purchased on a consumption basis, where a company either only pays for what they backup, typically on a per-GB per-month basis.
Backup as a service is delivered as an online cloud backup service, which may be self-managed or managed by the service provider. There are circumstances where BaaS may be delivered on premises in your own office or data center and supported by the managed service provider.
Backup as a service is used by organisations of all sizes, typically with 1TB or more storage capacity, who want to maximise their operational expenditure, improve backup windows, mitigate risk and offload technical debt associated with management and maintenance of backup infrastructure.
Customers sign a service agreement based on a fixed cost per-GB per-month basis, sometimes with a minimum commit of capacity or virtual machines (VMs). Often the BaaS service is provided to the customer with Backup Software included in the per-GB per-month pricing model, however there are cases where the customer may bring their own backup software such as Veeam, Veritas, Commvault or third-party backup software provided by the service provider.
In the event that the customer has opted for an on-premises deployment, equipment may be provided in the form of a local cloud gateway or full-scale cluster. In the case of a gateway, only a limited number of copies are stored on-site, where as for a full cluster, all long-term storage would be held on-premise. Equipment is provided to the customer inclusive of all installation, on-going maintenance and future upgrades.
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