Backup Appliance

You can choose the size of the Azure VM running Veeam Backup for Microsoft Azure during the deployment, or change it later as the environment grows.

Note

In Veeam Backup for Microsoft Azure version 8.1, you can only choose the B2ms, F4s_v2 or F8s_v2 VM size.

General Recommendations

The following recommendations and examples apply to the latest Veeam Backup for Microsoft Azure builds.

General Recommendations
Azure VM Size	Recommended Maximum Number of Protected Workloads	Recommended Maximum Number of Launched Worker Instances
B2ms (2 vCPU, 8 GB RAM) Note: The minimum amount of system RAM recommended to perform Virtual Network configuration backup is 8 GB. If you plan to protect Azure Virtual Network configuration components, it is not recommended that you choose the B2s Azure VM size — consider choosing larger sizes.	500 300 (if backed up simultaneously)	20
F4s_v2 (4 vCPU, 8 GB RAM)	1,500 500 (if backed up simultaneously)	150
F8s_v2 (8 vCPU, 16 GB RAM)	3,000 1,500 (if backed up simultaneously)	300

Note

For product deployments running on Azure VMs whose size is larger than D4s_v3, Veeam Backup for Microsoft Azure may simultaneously launch 100 worker instances per region — however, this can trigger throttling issues in Microsoft Azure. If you are facing these issues, it is recommended that you use a maximum of 70 worker instances per region at a time. Alternatively, consider reducing the number of worker instances launched simultaneously by configuring different schedules for your backup policies or by specifying different target regions. For more information, see Performing Backup.

Veeam Backup & Replication Integration

When you connect a backup appliance to the backup infrastructure, its backup policies, cloud-native snapshots, image-level backups, backup repositories and sessions are imported into the Veeam Backup & Replication database.

You can connect multiple backup appliances to a single Veeam Backup & Replication server. However, when working in an Azure subscription with cross-region data transfer, it is recommended that you use one Veeam Backup & Replication server per region, to help you avoid latency issues and meet potential data residency regulations.