FortiManager VM
Virtual FortiManager, scales from 10 devices to unlimited
- Devices / VDOMs
- 10 to unlimited
- Sustained log rate
- Hardware dependent
- GB / day
- 1–50
FortiManager VM runs the same management platform on your hypervisor or in your cloud account, licensed from a base tier up to unlimited devices. Performance is hardware-dependent, so it needs real resources allocated rather than leftover capacity.
Ten devices to unlimited, on your own hypervisor or cloud account. The caveat that catches people: performance is hardware-dependent, so an under-provisioned FortiManager VM is simply a slow FortiManager, and the symptom is policy pushes that take minutes instead of seconds. Allocate it real vCPU and memory rather than leftover capacity, and prefer it where you already operate a virtualisation platform properly.
How to work out whether it fits
The arithmetic a datasheet leaves out. If any of it does not match your situation, that is worth a call rather than a guess.
Sized by licence tier from ten devices to unlimited, so the model question is really a resourcing question. Performance is hardware-dependent and the symptom of under-provisioning is policy pushes that take minutes instead of seconds, which quietly trains people to batch changes and stop using the change workflow. Allocate real vCPU and memory against your device count rather than leftover host capacity, and treat it as a production system rather than a management afterthought.
Highlights
- Manages up to 10 to unlimited devices and VDOMs
- Policy packages and shared object database across the estate
- Full change-approval workflow with revision history and rollback
- ADOMs give per-tenant administrative separation for service providers
Typical deployments
- Organisations that would rather not rack another appliance
- Cloud-hosted management for a distributed estate
- Environments where DR of the management plane is already solved virtually
What this includes
Fortinet publishes no throughput table for this product; it is licensed per user, endpoint, workload or account. What follows is capability and sizing, not benchmarks.
Capacity
Managed-device capacity counts devices and VDOMs together.
| Devices / VDOMs (maximum) | 10 to unlimited |
|---|---|
| Sustained log rate (logs/sec) | Hardware dependent |
| GB / day | 1–50 |
Hardware
| Total interfaces | 1–4 vNIC |
|---|---|
| Storage capacity | 80 GB to 16 TB |
Sources
- Fortinet Product Matrix (July 2026), retrieved 2026-09-01
Reproduced from Fortinet published documentation and subject to change without notice. Where a figure is load-bearing for your design, ask us to confirm it in writing before you order; we will.