Synology RackStation RS3621RPxs 12-Bay NAS Enclosure
Description
The Synology RackStation RS3621RPxs is a diskless, 2U 19″ rackmount twelve-bay NAS enclosure powered by DiskStation Manager (DSM). It’s engineered for compute-intensive workloads and mission-critical data protection, featuring redundant power, ECC memory, and the Btrfs file system to safeguard business assets.
Hardware Specifications
| Specification | Details |
|---|---|
| Drive Bays | 12 × hot-swappable 3.5″/2.5″ SATA HDD/SSD |
| CPU | Intel® Xeon® D-1531 6-core 2.2 GHz (base) / 2.7 GHz (turbo) |
| Memory | 8 GB DDR4 ECC UDIMM (1 × 8 GB), expandable to 64 GB (4 × 16 GB) |
| Network Interfaces | 4 × Gigabit Ethernet ports (Link Aggregation & failover) |
| USB Ports | 2 × USB 3.2 Gen 1 Type-A |
| PCIe Expansion Slots | 2 × PCIe 3.0 ×8 (for 10 GbE/25 GbE NICs or NVMe cache cards) |
| Power Supplies | Dual 500 W redundant, hot-swappable |
| AES-NI Encryption Engine | Built-in hardware encryption for secure data transmission |
| Dimensions (H × W × D) | 88 × 482 × 724 mm |
| Weight | 13.4 kg (bare chassis) |
| Warranty | 3-year limited; extendable to 5 years |
Key Software & Features
- Btrfs Next-Generation File System
Metadata mirroring, inline compression, file self-healing, and near-instantaneous snapshots to prevent silent data corruption and enable fast recovery. - Synology High Availability (SHA)
Active/passive clustering between two RS3621RPxs units for minute-level failover and near-zero downtime. - Active Backup Suite
Agentless, multi-version backup for Windows/Linux servers, VMs, and SaaS applications with global deduplication and centralized monitoring. - Virtual Machine Manager
Host and isolate virtual machines or containers directly on the NAS for dev/test or edge-computing workloads. - Hybrid Cloud & Cloud Sync
On-premises caching of hot data while offloading cold data to Synology C2 or public clouds; two-way sync with Google Drive, Dropbox, and OneDrive. - Surveillance Station
Manage up to 50 IP cameras (2 free licenses) with live view, recording, and intelligent event handling.
Performance & Scalability
- Sequential Throughput
Up to 4,718 MB/s sequential read with Link Aggregation (10 GbE NICs required). - Random IOPS
Up to 189,098 4 KB random read IOPS for high-density database and virtualization tasks. - On-Demand Expansion
Scale raw capacity from 12 to 36 drives by adding up to two RX1217(RP) expansion units without downtime.
Reliability & Management
Dual 500 W redundant power supplies and hot-swappable system fans ensure business continuity. ECC memory and Btrfs file system guard against data corruption. Centralized monitoring and alerts via DSM and Synology Central Management System (CMS) simplify fleet management in distributed environments.
Ideal Use Cases
- Enterprise-class file server for small-to-midsize businesses requiring high availability
- Virtualization storage platform for dense VM and container hosting
- Centralized backup repository protecting hundreds of endpoints
- Hybrid-cloud edge node balancing on-premises performance with cloud archiving
- Surveillance NVR supporting up to 50 cameras with integrated video management
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