Estimating backup costs often starts with one question: how much data do you need to protect?
That is a good starting point. Data volume affects storage, backup windows, retention and restore time. Backing up 1 TB is not the same as backing up 10 PB.
But data volume alone is not enough. A realistic backup budget also depends on the number of systems, the type of workloads, plugin needs, support level, services and restore expectations.
Why data volume alone is not enough
Two organizations can both protect 50 TB of data and still need very different backup setups.
One may have a few large file servers. Another may have hundreds of clients, virtual machines, databases and application data across several locations. The data volume may be the same, but the setup is not.
Important cost factors include:
- source data volume
- number of clients and systems
- number of plugin jobs
- workload types
- retention requirements
- storage targets
- restore expectations
- support level
This is why backup pricing should look at the whole environment, not only the total number of terabytes.
How Bareos simplifies the calculation
Bareos uses backup units to make cost planning easier.
The calculation is based on the larger value of:
- source data in TB
- clients plus plugin jobs
The result is rounded up to the next 10 units, with a minimum of 10 units.
This makes the model easier to understand as your environment grows. If you add more servers, databases, virtual machines or other workloads, you can estimate how this affects your subscription size.
The goal is simple: clear budget planning, even when the technical environment becomes more complex.
Open source and proprietary cost models
Costs also depend on how the software is licensed and supported.
With proprietary software, you usually pay for a license or subscription defined by the vendor. If your environment grows, you may need extra licenses, a higher edition or additional modules. If you stop paying, you may also lose access to updates, support or some product functions. In some cases, this can make restores harder.
Open source works differently. With Bareos, the software is open source and your backup data stays always under your control. You are not locked into a closed vendor ecosystem just to keep access to your backups.
Why workloads and plugins matter
A backup workload is not just “data.” It can be a Linux server, a Windows system, a VMware virtual machine, a Proxmox guest, a Hyper-V VM, a PostgreSQL database, an Open-Xchange environment or S3-related object storage.
Some workloads can be protected with standard file-level backup. Others need specific backup logic.
This is where plugins matter. Bareos plugins extend backup and restore workflows for specific workloads, including virtual platforms, databases, object storage, disaster recovery and other specialized environments.
All supported plugins are available through Bareos Subscription. This is important for production use, where organizations need maintained packages, updates, compatibility and support.
Why support and services matter
Support is not only about fixing errors. In backup and recovery, support matters when teams need to restore data, solve configuration problems, adjust a growing setup, plan a migration or scale an existing environment.
This is especially important in regulated industries. DORA and NIS2 put more focus on operational resilience, ICT risk management, business continuity, backup management and disaster recovery. A supported backup environment helps teams work with clearer processes, defined responsibilities and experienced help when it matters.
Bareos can also support teams with consulting and services around backup architecture, setup reviews, health checks, training and migration. Additionally, our consulting team has also a broad knowledge outside of the backup and recovery domain, for example Open-Xchange migration where relevant.
Use the Bareos pricing calculator
The Bareos pricing calculator helps estimate your subscription size based on source data, clients and plugin jobs. You can also add support and selected services to get an indicative estimate.
This does not replace a final quote, but it helps you understand the expected budget range.
Estimate your Bareos subscription size: https://www.bareos.com/pricing/
Conclusion
Backup costs are not only about terabytes. Data volume is the starting point, but the final budget also depends on systems, workloads, plugins, support, services and restore expectations.
Bareos can fit different environments, from smaller setups to large mixed infrastructures. It combines open-source backup software with maintained packages, workload-specific plugins, professional support and additional services.Use the Bareos pricing calculator to estimate your environment and request a quote based on your actual setup.