virt-manager vs ZSvirt

virt-manager is a desktop interface for managing virtual machines through libvirt, chiefly for KVM, with support for Xen and LXC as well. It connects to local and remote hosts and displays live performance and resource-use statistics for running domains. Setup wizards help create domains and assign resources and virtual hardware, while an embedded VNC and SPICE viewer provides a graphical guest console. The interface also manages host virtual networks, storage pools, and network interfaces. Companion command-line tools handle provisioning, cloning, and editing virtual machines. virt-manager runs on Linux and OpenBSD hosts, supports both guest architectures, and includes snapshots and GPU acceleration. Installation options listed include Fedora, Debian, Gentoo, and OpenBSD packages, plus a source release. It is distributed under the GNU General Public License; current releases are GPG signed, with verification instructions. Documentation and a FAQ are available, support questions go to GitHub Discussions, and bug tracking is on GitHub.

ZSvirt is an open-source, self-hosted virtualization platform based on ZStack’s ZSphere virtualization engine. It uses KVM and the site says one control plane can manage 10,000+ hosts, with VMs of up to 768 vCPUs. The ZSvirt Open Source plan has no license fee and no VM limit; it is offered with community support. Live migration, high availability, disaster recovery and API access are listed capabilities.

For VMware migration, ZMigrate supports agentless full-disk replication, incremental sync and cutover in as little as five minutes. Listed security features include VM SecureBoot, vTPM 2.0, encryption, security groups, MFA/2FA and immutable audit logs. Integration options include Go, Python and Java SDKs, native Terraform providers, GitOps and 2,000+ REST/OpenAPI endpoints. Storage and compatibility options include distributed storage integrations, SAN support, the KVM ecosystem, VMDK, and mainstream hardware and guest operating systems. Downloads include x86_64 ISO, OVA and QCOW2 images, plus the ZMigrate package. Enterprise adds advanced multi-cluster and compliance capabilities, LTS releases, SLAs and vendor-backed production support.