The following limits apply to Azure Backup.
| Limit Identifier | Default Limit |
|---|---|
| Number of servers/machines that can be registered against each vault | 50 for Windows Server/Client/SCDPM 200 for IaaS VMs |
| Size of a data source for data stored in Azure vault storage | 54400 GB max1 |
| Number of backup vaults that can be created in each Azure subscription | 25(Backup vaults) 25 Recovery Services vault per region |
| Number of times backup can be scheduled per day | 3 per day for Windows Server/Client 2 per day for SCDPM Once a day for IaaS VMs |
| Data disks attached to an Azure virtual machine for backup | 16 |
- 1The 54400 GB limit does not apply to IaaS VM backup.