Azure Backup is Microsoft’s cloud-based backup solution. It requires no additional infrastructure setup. The solution allows doing a one-of backup as well as a scheduled backup through backup policies. One can backup, SQL databases, Disks, VMs, Files, and Blobs.
Data Redundancy
Locally Redundant Storage or LRS: protects data from server rack or drive failures. This replicates data three times within a single data center.
Zone Redundant Storage or ZRS: Replicates backup data in availability zones, to generate data residency and resiliency in the same region.
Geo Redundant Storage or GRS: Protects data from region-wide outages by replicating data to a secondary region.
MARS Agent: MARS or Microsoft Azure Recovery Service helps backup on-prem Windows machines.
Azure Backup Center: To view and manage backups for various resources from one place.
Backup Policies: You can create policies for resources like VMs, SQL, file share, etc. Backup policies are created on the backup-vault basis. One can set rules like when to take a backup along with retention details like how long each backup should be retained.