What’s New in Proxmox Backup Server 3.3?
Proxmox Server Solutions GmbH has once again raised the bar with the release of Proxmox Backup Server 3.3, the latest version of its open-source backup solution for enterprises. Designed for backing up and restoring virtual machines (VMs), containers, and physical hosts, Proxmox Backup Server offers cutting-edge features such as incremental backups, deduplication, Zstandard compression, and authenticated encryption.
Key Features of Proxmox Backup Server 3.3
1. Push Sync for Offsite Backups
The new push sync feature allows onsite servers to directly send backups to offsite servers. Previously, offsite servers had to pull backups from onsite servers. This push functionality ensures offsite backups even when the offsite server cannot initiate network connections.
2. Support for Removable Datastores
Proxmox now supports removable storage media as datastores. These datastores can be managed across multiple servers and easily added or removed via the web interface or command line.
3. Webhook Integration for Notifications
The flexible notification system now supports webhooks. This feature allows users to configure HTTP requests for specific events, such as data syncs, backup verifications, or garbage collection, enabling seamless integration with webhook-compatible services.
4. Faster Host and Container Backups
Proxmox Backup Server 3.3 enhances efficiency by detecting unchanged files during host filesystem or container backups. This reduces processing time, speeding up file-based backups significantly.
5. Updated Kernel and ZFS Support
The platform is based on Debian 12.8 “Bookworm” and ships with Linux kernel 6.8.12-4 as the default, with kernel 6.11 as an opt-in option. Additionally, ZFS 2.2.6 ensures compatibility with the latest kernel.
Why Choose Proxmox Backup Server?
Proxmox Backup Server integrates seamlessly with Proxmox Virtual Environment (VE), enabling users to add its datastore as a new backup storage target. With its intuitive web-based user interface, Proxmox simplifies backup management.
How to Get Proxmox Backup Server 3.3
The ISO image is available for download and can be installed on bare-metal systems via the installation wizard. Upgrading from previous versions is straightforward using APT, and the software can also be installed on top of Debian.
License: GNU AGPLv3 (Free and Open-Source)
Support Subscriptions: Starting at EUR 520 per server, including unlimited storage and technical support.
About Proxmox
Founded in 2005, Proxmox Server Solutions GmbH is a leader in open-source server software. Their solutions, including Proxmox VE and Proxmox Backup Server, are tailored to help businesses optimize IT infrastructure, cut costs, and avoid vendor lock-in.
Conclusion
Proxmox Backup Server 3.3 offers robust enhancements aimed at improving efficiency, security, and flexibility in data backups. With new features like push sync, removable datastores, and webhook support, it solidifies its reputation as a reliable and cost-effective backup solution for enterprises.
