Snapshots as Volume Chains

Proxmox VE 9 Release Highlights
Proxmox VE 9 is a new major release based on Debian Trixie, offering a seamless upgrade path from Proxmox VE 8.4. This update focuses on enhancing performance, security, and management capabilities across the platform.

Key Features and Improvements
Virtualization and Storage

• Snapshots as Volume Chains: A new technology preview enables VM snapshots on thick-provisioned LVM storage, allowing a more efficient way to manage snapshots.
• ZFS Enhancements: You can now add new devices to existing RAIDZ pools with minimal downtime.
• Live Migration: Live VM migrations can now optionally transfer the connection tracking state, preventing network interruptions.
• Container Security: Containers are now created as unprivileged by default for improved security.

Networking and Management

• SDN Fabrics: The Software-Defined Networking (SDN) stack now supports creating OpenFabric and OSPF fabrics, which can be used for things like full-mesh Ceph clusters.
• HA Affinity Rules: A new mechanism gives you granular control over the placement of HA resources, replacing the old HA groups.
• Modernized Mobile UI: The mobile web interface has been completely rewritten in Rust, making it easier to manage guests and other resources on the go.
• Improved Node Metrics: The system now provides enhanced metrics for both virtual guests and nodes, offering more detailed insights into resource usage.