Syneto Syneto
White Paper · 2026

Hyperion — The Syneto KVM Hypervisor.

How Syneto turned the upstream KVM/QEMU stack into a production-hardened hypervisor for European mid-market — and what migrating from VMware actually looks like.

Companies
5,000+
Partners
250+
CSAT
98%
Bytes lost
$0
SYNETO  |  WHITEPAPER-HYPERION-KVM-HYPERVISOR  |  WHITE PAPER v1.0 EN-IT-ES
White Paper02
Legal imprint

About this document

Publisher

Syneto SpA

Via Cefalonia 70, Brescia 25124, Italy

VAT RO15999720 · REG J35/2971/2003

Contact: [email protected]

Phone: +39 051 095 3000

Web: https://syneto.eu

Offices

Italy (HQ) · Brescia

Romania · Timișoara

Spain · Madrid

Certifications

ISO 9001 — Quality Management

ISO/IEC 27001 — Information Security

Copyright & trademarks

© 2026 Syneto SpA. All rights reserved. "Syneto", the Syneto logo, "SynetoOS", "Syneto CENTRAL", "Hyperion", "HYPER Core", "HYPER Edge", and "HYPER Echo" are trademarks of Syneto SpA. All other trademarks are the property of their respective owners.

Document scope

Hyperion architecture: kernel KVM, QEMU device emulation, libvirt orchestration, virtio paravirtualisation, Open vSwitch networking, live migration semantics, snapshot consistency, feature parity with VMware.

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Architecture03
Chapter 01 · Architecture

Hyperion KVM stack — from CPU silicon to running VM.

Hyperion is a production layer on top of upstream Linux KVM — the same hypervisor running Google Cloud, OpenStack, AWS Nitro and Red Hat Virtualization. Syneto adds kernel patches, libvirt extensions, SyFS integration and the management UI.

Hardware
AMD EPYC / Threadripper ProIntel VT-x / AMD-VIOMMU (VT-d / AMD-Vi)SR-IOV NICsNVMe pass-through
Linux kernel
KVM module (Type-1 hypervisor)cgroups + namespacesAES-NI / AVX-512vhost-netvhost-scsi
QEMU
Device emulationvirtio-blk / virtio-net / virtio-scsiq35 chipsetEDK2 UEFILive migration
libvirt + Syneto layer
VM lifecycle XMLSyFS-aware RPsHyperion HA daemonRBAC enforcementsyctl CLI / REST API
Networking
Open vSwitchVLAN + VXLANMirror ports / sFlowNSX-style virtual networksBGP-EVPN (optional)
Translation in plain Italian

"From silicon to the VM" means: CPU instructions (silicon) execute under KVM in the kernel, devices are emulated/passed-through by QEMU, libvirt + Syneto give it a control plane, and a VM boots on top. That whole path is Hyperion.

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VM lifecycle04
Chapter 02 · VM lifecycle

How a VM gets from definition to running on Hyperion.

VM definition libvirt XML SyFS volume qcow2 / raw on SyFS QEMU process PID per VM KVM ioctl Hardware accel EPYC core guest-mode execution virtio-net vhost-net offload virtio-blk vhost-scsi offload Open vSwitch VLAN / VXLAN Physical NIC SR-IOV / bond
Definition → SyFS-backed disk → QEMU process → KVM ioctl → guest-mode execution on the EPYC core. Networking/IO paravirt-offloaded via vhost.
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Feature parity05
Chapter 03 · Feature parity

What VMware admins expect — and Hyperion delivers.

CapabilityVMwareHyperion
Live VM migrationvMotionlive-migrate (libvirt)
HA host failurevSphere HAHyperion HA
Resource poolsDRS clustersResource groups
SnapshotsVMware SnapshotSyFS Recovery Points
ReplicationvSphere ReplicationSmart Replicator
RBACvCenter rolesSynetoOS roles
Templates / cloningVM TemplatesSyFS clone-from-RP
NetworkNSX-TOpen vSwitch + VXLAN
UpdatevSphere LifecycleCENTRAL signed-image push
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Migration semantics06
Chapter 04 · Migration semantics

Crossing the hypervisor boundary.

01

1 · Snap source

Snapshot on VMware. SyFS captures a Recovery Point of the original VMDK as rollback safety net.

02

2 · Export

OVA / OVF export. SynetoOS imports VM definition and disk(s) into a SyFS volume.

03

3 · Convert

virt-v2v swaps drivers in-place: LSI Logic → virtio-scsi, VMXNET3 → virtio-net. No guest reinstall.

04

4 · Boot on KVM

VM boots under Hyperion. Operational test. If anything misbehaves: revert to step-1 Recovery Point.

05

5 · Reverse path

Any Hyperion VM can be exported back to OVA and re-imported into vSphere. Symmetric.

VM convert + reboot
<5 min
Conversion tool
virt-v2v
Rollback path
Recovery Point
Migration granularity
Per VM
Per-VM migration command
syctl migrate vmware \
--source vcenter.local \
--vm "vm-erp-01" \
--target hyperion-mil-cluster \
--hold-rollback-rp 30d
Migration plan:
source : vCenter / vm-erp-01 / 38 GB VMDK
↓ SyFS Recovery Point pinned (30-day hold)
↓ OVA export (~11 min)
↓ virt-v2v: driver swap LSI Logic→virtio-scsi
↓ Hyperion boot (~38s power-on)
target : hyperion-mil-cluster / vm-erp-01 / SyFS volume
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Support & contact07
Chapter 05 · Support & contact

About Syneto & next steps.

Syneto designs and manufactures the complete Hybrid Cloud Ecosystem — hypervisor, data management, data protection and disaster recovery in a single plug & play platform. Founded in 2008, headquartered in Brescia and Timișoara, serving 5,000+ European businesses.

5,000+
Companies served
250+
Channel partners
18+
Years building HCI
$0
Ransom ever paid
European engineering

Designed, built and supported in Europe. ISO 9001 and ISO/IEC 27001 certified operations.

Plug & play deployment

Production-ready in under 30 minutes. No multi-vendor integration, no professional services required.

Single-vendor support

One contract, one phone number, one SLA — for the entire stack. Local language support.

Zero ransom paid

Across 18+ years of customer deployments, no Syneto customer has ever paid ransom following a cyber incident.

Single-vendor support — one contract, one phone number, one SLA for the entire stack. Three response tiers, all delivered by Syneto engineers in your language.

PlanResponseCoverageWho it's for
EssentialNBD — 8×5Software + hardwareBranch offices, test & dev
Business4 h — 24×7Software + hardwareProduction workloads
Mission-Critical1 h — 24×7Software + hardware + TAMBusiness-critical sites, DR

Talk to Syneto

Customer Support Portal

support.syneto.eu

Help Center

help.syneto.eu

Syneto Academy

academy.syneto.eu

Partner Portal

partners.syneto.eu

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Ready to simplify?.

Join 5,000+ European companies that trust Syneto.

Italy HQ
Via Cefalonia 70
Brescia 25124
Romania
Bastion Office
Timișoara 300054
Spain
Calle Antonio Arias 6
Madrid 28009
Web
syneto.eu
syneto.eu [email protected] +39 051 095 3000
SYNETO SPA · VAT RO15999720 · REG J35/2971/2003 · ISO 9001 · ISO/IEC 27001