Azure Backup one of the Cloud Backup solution offered by Microsoft. Where you place the Files and Virtual machines and Databases.backup and Site recovery two main features offered the Recovery Service Valult.
You can manage retention of data through retension policy.
Backup - you can store and backup the on-premises Hypervisors,VMware machines ,File servers,Microsoft SQL servers,Microsoft Exchange & Sharepoint server,Bare Metal Recovery and Files and Folders, To setup the on premises Backup you need to install the Azure Backup Server Tool and you need to validate through vault Credentials.
Azure Site Recovery (ASR) - Another feature which used to setup the recovery environment for on premises as well as cloud application.
Azure Cloud Backup - You can backup the your own azure environments like Virual machines and SQl servers file servers.
You can automate the Backup policy through your own retantion policy.
Power BI integration for reports.
RBAC to control the users access over Backup funtion.
As part reduntancy you must enabled GRS ( Geo reduntant Storage) to avaid single data center failure.
On premises Database backup still in Preview.
Accessblity and Speed will considerable while setup on premises backup.
Recovery Solution for on premises Application environment.
To reduce the hardware and maintenance cost.
To automate the Backup solution.