Vx Manager 1.6.4

While the changelog is concise, these updates matter:

鈿狅笍 Note: This version drops support for legacy Windows 7 SP1 without the Platform Update. Upgrade to Windows 10/11 or Server 2019+ for full compatibility.

Solution: Restart the hypervisor service and verify permissions.

sudo systemctl restart libvirtd   # For KVM
sudo usermod -aG libvirt $USER
vxctl hypervisor reinit --all

Environment: 3-node cluster, Intel Xeon Gold 6330, 256 GB RAM, 25GbE fabric. vx manager 1.6.4

| Metric | v1.6.3 | v1.6.4 | 螖 | |--------|--------|--------|----| | API response time (p99, /v1/vms) | 342 ms | 218 ms | -36% | | VM spawn rate (VMs/min) | 48 | 62 | +29% | | Controller memory footprint | 2.1 GB | 1.7 GB | -19% | | Flow rule insertion (rules/sec) | 1150 | 1390 | +20.8% |

For ephemeral or test environments:

docker run -d \
  --name vxmanager-1.6.4 \
  -p 8843:8843 \
  -p 12345:12345 \
  -v /var/run/docker.sock:/var/run/docker.sock \
  -v /vx-data:/data \
  vxmanager/stable:1.6.4

Traditional snapshots freeze I/O for several seconds. VX Manager 1.6.4 implements copy-on-write (CoW) with dirty page tracking: While the changelog is concise, these updates matter:

vxctl snapshot create test-ubuntu --name "pre-upgrade" --live

The entire operation completes in under 500ms for VMs with less than 10GB of active memory.

Installing VX Manager 1.6.4 is straightforward. Below is the process for a Linux-based host (Ubuntu 22.04 LTS), which is the most common deployment scenario.

While this article focuses on version 1.6.4, you should know the alternatives in case your needs differ. 鈿狅笍 Note: This version drops support for legacy

Stick with VX Manager 1.6.4 if your priority is low overhead + bulletproof snapshotting on mixed hypervisor environments.


The built-in automation language now supports asynchronous event listeners. You can write scripts that react to VM state changes (e.g., on_vm_crash or on_snapshot_commit) without polling.