Proxmox Backup Server 4.1 has been released with several new features built on the foundation of Debian GNU/Linux 13.2 and Linux kernel 6.17.2-1. One notable addition is user-based traffic limiting, which allows administrators to prioritize workloads by assigning higher bandwidth to specific users during backups. Proxmox Backup Server 4.1 also includes configurable parallelism for verify jobs, enabling administrators to manage resources more efficiently. Additionally, the software now features bandwidth rate limiting for S3 endpoints, making it ideal for shared environments or networks with limited connectivity.
Proxmox Backup Server 4.1 released
Proxmox Backup Server 4.1 has officially landed, built on the solid foundation of Debian GNU/Linux 13.2 (Trixie) and featuring Linux kernel 6.17.2-1 as its new default. ZFS 2.3.4 provides reliable enterprise-grade storage, while improved hardware support ensures compatibility with a wide range of devices.
User-based traffic limiting is one useful feature Proxmox Backup Server 4.1 brings to the table. Administrators could already limit backup and restore traffic for specific client networks, but now they can also take into account the authenticated user. This opens up new possibilities for prioritizing workloads, like assigning higher bandwidth to business-critical services during backups or separating production and test environments at a user level.
Configurable parallelism for verify jobs is another significant enhancement in version 4.1. Backup snapshot verification can be demanding on both I/O and CPU, which means administrators need to manage resources carefully to keep downtime low. Now, they have finer control: specifying how many threads are used for disk reads and checksums within those verify tasks can dramatically shorten runtimes, which is especially valuable on powerful systems or when things are busy.
Building on the native support for S3-compatible object storage from version 4.0, Proxmox Backup Server 4.1 introduces bandwidth rate limiting specifically for S3 endpoints. This new feature allows administrators to limit how much network bandwidth is used during backup and restore activities with their S3 stores, which is essential in shared environments or when the network connection is limited.
For immediate download as an ISO image, Proxmox Backup Server 4.1 includes everything you need for fresh installation on bare-metal systems. There's even an intuitive setup wizard included to get things started quickly and smoothly. For those already using older versions of Proxmox Backup Server, the upgrade path is straightforward; it uses standard APT package management tools, so updates are simple and disruption-free. Plus, because it's Free/Libre and Open Source Software (FLOSS), you can always choose to install it directly onto a Debian GNU/Linux system if preferred, offering excellent flexibility in how things get rolling.
