Synology 12 Bay DiskStation DS3622xs+ - Highperformance 12bay NAS

In this review the Synology 12 Bay DiskStation DS3622xs+ is presented as a business-class, expandable tower NAS that prioritizes performance and capacity. The bottom line: IT teams, creative suites, and small datacenters will appreciate this unit for its raw throughput and expansion options, with the single biggest reason to buy being its combination of a 6-core Intel Xeon processor and the ability to scale to 36 bays while supporting high memory and network options for demanding workloads.

Key Features

• High IOPS and throughput: Over 260,000 4K random read IOPS and up to 4,700/2,400 MB/s sequential read/write to handle heavy transactional and media workflows.
• Powerful processor: A capable 6-core Intel Xeon CPU lets the unit host backup systems, video management, and multiple virtual machines without obvious CPU bottlenecks.
• Memory and caching: Support for up to 48 GB of memory and NVMe SSD Cache4 options accelerates read and write speeds for latency-sensitive tasks.
• Flexible networking: Native 10/25GbE networking and Fibre Channel support provide the bandwidth and connectivity options needed for high-performance storage networks.
• Scalable capacity: Scale the system up to 36 drive bays with two DX1222 expansion units to consolidate large archives or project storage on a single chassis.
• Commercial warranty: A 5 year warranty gives peace of mind for business deployments where uptime matters.

Who It's For

The DS3622xs+ is aimed at small to medium businesses, creative teams, and IT departments that need a high-performance, expandable NAS for virtualization, surveillance, and video editing. Its strong sequential throughput and high random IOPS make it especially suited for environments that mix large media files with many small reads and writes.

Those who need a simple home NAS with minimal networking or who want an all-in-one appliance with preinstalled drives should look elsewhere; the DS3622xs+ is diskless and intended for administrators comfortable selecting and installing compatible drives and configuring network and cache options.

Pros & Cons

Pros

• Exceptional mixed workload performance backed by a 6-core Xeon processor and high IOPS figures.
• Strong scalability with support for two 12-bay expansion units to reach 36 total drives.
• Flexible connectivity including 10/25GbE and optional Fibre Channel plus NVMe caching for faster I/O.

Cons

• Diskless configuration requires purchasing drives separately and verifying compatibility, which added setup effort for some customers.
• Connectivity can be complex; a few users reported mixed experiences when saturating 10G networks or with certain drive models.

Specifications

Model	DS3622xs+ (diskless)
Drive bays	12 bays (expandable to 36 with two DX1222 units)
Processor	6-core Intel Xeon processor
Memory	Up to 48 GB supported
Performance	Over 260,000 4K random read IOPS; 4,700/2,400 MB/s sequential read/write
Networking	10/25GbE networking support; Fibre Channel support available
Warranty	5 year warranty

Our Verdict

The DS3622xs+ is a compelling choice for businesses that need a powerful, expandable NAS platform. It delivers exceptional throughput, flexible networking, and growth potential that justify the extra effort to provision drives and tune connectivity. For IT teams that require performance and scalability, it represents strong value as a core storage node.

Frequently Asked Questions

Does the unit include drives?
The DS3622xs+ is sold diskless, so drives must be purchased separately and fitted by the administrator.

Can it support virtual machines?
Yes, the 6-core Intel Xeon CPU and support for up to 48 GB of memory make it suitable for hosting virtual machines and mixed server workloads.

How many drives can it scale to?
With two DX1222 expansion units attached, the system can be expanded to a total of 36 drive bays.