Linux Ubuntu

Virtualization: Proxmox Virtual Environment 6.4 in brief test

Proxmox Server Solutions GmbH has renewed all three parts of its hypervisor and container platform. Proxmox Virtual Environment (VE) 6.4, Mail Gateway 6.4 and Backup Server 1.1 are now based on Debian GNU / Linux 10.9 Buster. Proxmox VE (download) uses a 5.4 LTS or possibly 5.11 kernel and provides VMs from a combination of QEMU 5.2 and KVM. Recently, virtual machines can be pinned on some versions of QEMU machines. Windows virtual machines are automatically linked to the version of the current QEMU machine when they are created. LXC 4.0 containers allow better management of cgroup v2. Application templates are available for Alpine Linux 3.13, Fedora 34, Ubuntu 21.04, and the Devuan 3 Beowulf, which was released from systemd.

The Proxmox cluster can use Ceph in two versions as highly available distributed storage. During installation, you can choose between Ceph Nautilus 14.2.20 and Octopus 15.2.11 in the configuration wizard. Ceph Octopus is to be preferred, in particular for multi-site installations. Among other things, the integration of the Placement Group Auto-Scaler has been improved in Proxmox VE 6.4.

With Proxmox VE 6.4, OpenZFS 2.0.4 replaces ZFS 0.8.5. OpenZFS 2.0 brings together parallel ZFS developments from FreeBSD, Linux and Illumos. Numerous improvements and the compression with the Zstandard (zstd) developed by Facebook make the use of OpenZFS 2.0.4 attractive. Zstd is completely multithreaded and particularly fast when it comes to decompressing. It combines a dictionary match step with a large search window with fast finite-state entropy coding, which includes both Huffman and tANS (Tabled Asymmetric Numeral Systems) coding.

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