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Each VMM cluster can consist of a maximum of seven Synology NAS devices.
No, license periods cannot be extended by activating multiple licenses simultaneously.
No, each license can only be used for one Synology VMM cluster at a time.
Yes, every Synology product that supports VMM is eligible for a one-time 30-day free trial for the VMM Pro features.
No, licenses cannot be refunded once activated.
Review Summary
1-Year, 3-Year, 5-Year
3-Nodes, 7-Nodes
Windows, Linux, and Virtual DSM
Yes
Yes
Physical CPU threads x4
4096
255
16
Yes
Yes
Yes
Yes
Yes
FS6400:
Max System Memory Installed: 512GB (32GB x 16)
Recommended Maximum Instances: 32
FS3600:
Max System Memory Installed: 128GB (32GB x 4)
Recommended Maximum Instances: 24
FS3410:
Max System Memory Installed: 128GB (32GB x 4)
Recommended Maximum Instances: 16
FS2500:
Max System Memory Installed: 32GB (16GB x 2)
Recommended Maximum Instances: 8
HD6500:
Max System Memory Installed: 512GB (32GB x 16)
Recommended Maximum Instances: 40
SA6400:
Max System Memory Installed: 1024GB (64GB x 16)
Recommended Maximum Instances: 24
SA3610:
Max System Memory Installed: 128GB (32GB x 4)
Recommended Maximum Instances: 24
SA3410:
Max System Memory Installed: 128GB (32GB x 4)
Recommended Maximum Instances: 16
SA3400D:
Max System Memory Installed: 64GB (16GB x 4)
Recommended Maximum Instances: 16
SA3200D:
Max System Memory Installed: 64GB (16GB x 4)
Recommended Maximum Instances: 8
RS4021xs+:
Max System Memory Installed: 64GB (16GB x 4)
Recommended Maximum Instances: 16
RS3621xs+:
Max System Memory Installed: 64GB (16GB x 4)
Recommended Maximum Instances: 16
RS3621RPxs:
Max System Memory Installed: 64GB (16GB x 4)
Recommended Maximum Instances: 12
RS3618xs:
Max System Memory Installed: 64GB (16GB x 4)
Recommended Maximum Instances: 8
RS2821RP+:
Max System Memory Installed: 32GB (16GB x 2)
Recommended Maximum Instances: 8
RS2423+/RS2423RP+:
Max System Memory Installed: 32GB (16GB x 2)
Recommended Maximum Instances: 8
RS2421+:
Max System Memory Installed: 32GB (16GB x 2)
Recommended Maximum Instances: 8
RS1619xs+:
Max System Memory Installed: 64GB (16GB x 4)
Recommended Maximum Instances: 8
RS1221+/RS1221RP+:
Max System Memory Installed: 32GB (16GB x 2)
Recommended Maximum Instances: 8
RS822+/RS822RP+:
Max System Memory Installed: 32GB (16GB x 2)
Recommended Maximum Instances: 8
DS3622xs+:
Max System Memory Installed: 48GB (8GB x 2 + 16GB x 2)
Recommended Maximum Instances: 12
DS2422+:
Max System Memory Installed: 32GB (16GB x 2)
Recommended Maximum Instances: 8
DS1823xs+:
Max System Memory Installed: 32GB (16GB x 2)
Recommended Maximum Instances: 8
DS1821+:
Max System Memory Installed: 32GB (16GB x 2)
Recommended Maximum Instances: 8
DS1621+:
Max System Memory Installed: 32GB (16GB x 2)
Recommended Maximum Instances: 8
DS1522+:
Max System Memory Installed: 32GB (16GB x 2)
Recommended Maximum Instances: 4
DS923+:
Max System Memory Installed: 32GB (16GB x 2)
Recommended Maximum Instances: 4
DS723+:
Max System Memory Installed: 32GB (16GB x 2)
Recommended Maximum Instances: 4
DS620slim:
Max System Memory Installed: 6GB (2GB + 4GB)
Recommended Maximum Instances: 2
DS423+:
Max System Memory Installed: 6GB (2GB + 4GB)
Recommended Maximum Instances: 2
DS224+:
Max System Memory Installed: 6GB (2GB + 4GB)
Recommended Maximum Instances: 2
DS220+:
Max System Memory Installed: 6GB (2GB + 4GB)
Recommended Maximum Instances: 2
Virtual Machine Manager Pro
Synology Virtual Machine Manager Pro license allows you to fully utilize VMM's cluster infrastructure. It enables migration and flexible scalability for load balancing and resource allocation. VMM is licensed by cluster size and offers various options to satisfy a variety of needs.
Licensing Plan
Virtual Machine Manager Pro licenses come as 3-Node pack and are valid for one year. Each VMM cluster can consist of a maximum of seven Synology NAS devices. Licenses cannot be refunded once activated.
Before purchasing licenses, please ensure that your Synology NAS supports VMM
Each license can only be used for one Synology VMM cluster at a time
Purchased licenses can be migrated
License periods cannot be extended by activating multiple licenses at once
Free Trial
Every Synology product that supports VMM is eligible for a one-time 30-day free trial for the VMM Pro features. You can activate the trial in Virtual Machine Manager > License.
Activation and Mapping
In Virtual Machine Manager, go to License > Virtual Machine Manager and click Add. Your Synology NAS must be connected to the Internet when you add the license.