Typically, environment size dictates your deployment model. The size of your environment takes into consideration the number of machines (physical or virtual), as well as the total size of the backed-up data. Another consideration for repository sizing is the period of retention for your backups.
Below you can find a summary of the recommended system requirements. For more detailed specs, visit the User Guide.

Get started with sizing:
- Make sure that servers that you plan to use as backup infrastructure components meet the listed system requirements.
- Veeam Sizing Estimator can provide a quick and easy method of estimating the requirements for a Veeam Backup solution.
- Veeam Backup Capacity Calculator allows to estimate capacity required to store backup data.
Pro tip: avoid the 10GB database size cap and artificial performance limitations of Microsoft SQL Server Express Edition without breaking the bank with support for free, multi-platform PostgreSQL as a configuration database engine.
Continue by watching this webinar on Veeam Backup & Replication Sizing Best Practices for an overview on how to size Veeam for an entire environment, including Veeam Backup & Replication sizing, when to use which version of SQL, proxy and repository sizing best practices.
Suggested resources:
- Best Practice Sizing Resources
- Veeam Size Estimator (VSE) Guide
- How to size for NAS/File share backups?
If you need more help getting started, you can post your question in the comments section below or contact us at any time and someone from the Customer Success team will be there to assist you.