Synology RackStation RS3621xs+ 12-Bay NAS Enclosure

BH #SYRS3621XSP • MFR #RS3621XS+
Synology RackStation RS3621xs+ 12-Bay NAS Enclosure
Key Features
  • 12 x 3.5"/2.5" SATA Drive Bays
  • 2.1 GHz Intel Xeon D-1541 Eight-Core
  • 8GB of DDR4 ECC RAM
  • 2 x 10GbE | 4 x 1GbE
Engineered to deliver high throughput and robust data protection, the RackStation RS3621xs+ 12-Bay NAS Enclosure from Synology is a true enterprise powerhouse. Designed with a 12-bay, 2 RU storage form factor, built-in 500W redundant power supplies, an 8-core processor, ECC memory, advanced snapshot technology, and file self-healing, the RS3621xs+ provides a reliable founding to data-driven businesses. This unit has 12 drive bays, each of which natively supports 3.5" SATA hard drives, as well as 2.5" SATA hard drives and SSDs. Should users need to expand the overall capacity of their RS3621xs+, two optional RX1217/RX1217RP expansion units may be used to connect up to 24 additional drive bays, and each unit is connected using an integrated expansion port. The RS3621xs+ can deliver 4K random reads of up to 238,273 IOPS and sequential reads of up to 5819 MB/s.
In Stock
$4,399.99
$367/mo. suggested payments for 12 Mos.
with the credit card.§ 
Protect your Gear
Add a protection plan from $194.99

Synology RS3621xs+ Overview

Engineered to deliver high throughput and robust data protection, the RackStation RS3621xs+ 12-Bay NAS Enclosure from Synology is a true enterprise powerhouse. Designed with a 12-bay, 2 RU storage form factor, built-in 500W redundant power supplies, an 8-core processor, ECC memory, advanced snapshot technology, and file self-healing, the RS3621xs+ provides a reliable founding to data-driven businesses. This unit has 12 drive bays, each of which natively supports 3.5" SATA hard drives, as well as 2.5" SATA hard drives and SSDs. Should users need to expand the overall capacity of their RS3621xs+, two optional RX1217/RX1217RP expansion units may be used to connect up to 24 additional drive bays, and each unit is connected using an integrated expansion port. The RS3621xs+ can deliver 4K random reads of up to 238,273 IOPS and sequential reads of up to 5819 MB/s.

The RackStation RS3621xs+ is powered by a 2.1 GHz Intel Xeon D-1541 Eight-Core processor, which will allow you to run multiple functions simultaneously. The built-in 8GB of DDR4 ECC RAM will allow quick access to frequently used files and programs and may also be upgraded to a total of 64GB by installing a 16GB module into each of the four DIMM slots. Also featured are two USB 3.2 Gen 1 Type-A ports, which allow it to be connected to external peripherals. Network connectivity is achieved via the two 10 Gigabit Ethernet or four Gigabit Ethernet ports with failover support, which help to provide redundancy in the case that a LAN connection malfunction occurs on one port. In addition, link aggregation helps to increase connection speeds beyond the limits of a single network port or cable. If you're looking to expand this NAS, there are two PCIe Gen 3.0 x8/x8 slots that support 10GbE network interface cards and M.2 NVMe adapter cards for an SSD cache.

The RackStation RS3621xs+ runs on the DiskStation Manager (DSM) operating system, which helps simplify managing your NAS, as well as accessing and sharing data. A variety of RAID modes are supported, which help provide users with data redundancy, speed, or a combination of both. Supported RAID modes include RAID 0, 1, 5, 6, 10, Basic, and Synology RAID F1. For those who do not require a RAID, JBOD is also available, allowing each drive bay to be individually utilized.

Synology has engineered the RackStation RS3621xs+ to be energy efficient. Not only does it offer four 80 x 80mm fans to help keep the system running cool, the server supports numerous scheduled power on / off cycles and hard-drive hibernation to further minimize power consumption and operation expenses. The RackStation RS3621xs+ operates on 100-240 VAC at 50/60 Hz and includes an accessory pack and two AC power cords. Protection is provided by a limited 5-year hardware warranty.

General Features

Accelerate Your Business Options

The 12-bay RS3621xs+ is capable of delivering random 4K reads of over 238K IOPS and a sequential read throughput of 5819 MB/s, making it a true enterprise powerhouse. With full power supply redundancy, an 8-core processor, ECC memory, advanced snapshot technology, and file self-healing, the RS3621xs+ provides a reliable foundation to any data-driven business.

Storage You Can Trust

The RS3621xs+ keeps your data protected while you concentrate on delivering results to your customers, even when disaster strikes.

Redundant Power
Dual PSUs provide protection against a PSU failure or accidental cord removal while hot-swappable fans allow them to be replaced without powering down the system.

Maximize Service Availability
Synology High Availability (SHA) pairs two identical units together creating an active-passive cluster with minute-level failover.

Next-Generation File System
Btrfs prevents data corruption and reduces maintenance overheads with advanced storage technologies and optimized snapshots.

Tailored to Your Business

The RS3621xs+ includes two PCIe slots for performance, networking, and storage upgrades enabling it to adapt to any business environment.

Double Bandwidth
Upgrade network bandwidth in minutes by 2x or more with Synology's range of 10GbE NICs.

SSD Cache
Boost read/write IOPS by up to 16 times by enabling SSD cache with Synology M.2 NVMe adapter cards and SNV3500 SSDs or by installing one or more 2.5" SAT5200 SSDs.

Storage Expansion
Quickly and easily scale up to 36 drives with two RX1217(RP) expansion units.

Keep Disaster at Bay

Hyper Backup
A comprehensive backup and recovery solution for securing data stored on Synology servers. Backup data locally, to another Synology device, rsync server, or cloud-based storage such as Google Drive, Dropbox, S3-compatible destinations, and Synology C2. Deduplication, integrity checks, and incremental transfer technology reduce bandwidth and storage used.

Snapshot Replication
Easily schedule flexible point-in-time backups of shared folders and iSCSI LUNs with an RPO as low as 5 minutes and recovery in seconds. Set up replication and failover to other Synology storage systems for fast RTOs and minimal service disruption.

Back Up Your Entire IT Infrastructure

Active Backup Suite
Enables administrators to easily backup the entire IT infrastructure to their NAS, including Windows & Linux workstations and servers, file servers, VMware and Hyper-V virtual machines, and Microsoft 365 and Google Workspace accounts. Backups benefit from deduplication, multi-versioning, and optimizations to reduce bandwidth and storage used.

Storage for Virtualization

Synology iSCSI storage supports mainstream virtualization solutions with an easy management interface to enhance usability. VMware vSphere 6.5 and VAAI integration helps offload storage operations. Windows Offloaded Data Transfer (ODX) speeds up data transfer. OpenStack Cinder support turns your Synology NAS into a block-based storage component. Additionally, Synology Storage Console enables even more simplified storage provisioning and management options in VMware and Windows environments

Complete Surveillance Solution

Synology Surveillance Station transforms the RS3621xs+ into a feature-packed Network Video Recorder solution. Support for up to 90 IP cameras and video analytics such as motion detection, no idle zone, foreign object detection, and anomaly detection cater to the most common surveillance scenarios.

Secure and Private
AES 256-bit encryption adds additional security to the locally-stored footage.

Access from Anywhere, Anytime
Access recordings and live streams whenever you want using a web browser, desktop client, or the DS cam mobile app.

Real-Time Alerts
Email, SMS, or push notifications alert you when incidents occur or predefined conditions are met.

Works with Synology Drives

Engineered to handle intensive 24/7 workloads, Synology drives, including the 3.5" HAT5300 HDD, M.2 SNV3000 SSD, and 2.5" SAT5200 SSD consistently deliver top-grade performance.

Powered by Synology DiskStation Manager

The RS3621xs+ runs Synology DiskStation Manager (DSM), the web-based operating system with applications and services designed specifically for businesses.

Central Management System
Conveniently manage your fleet of Synology NAS from a centralized console.

Synology Drive
Instantly access your NAS files across multiple devices whenever you want, wherever you are.

Collaboration Suite
Satisfy all team collaboration needs behind the safety of your own private cloud with Synology Office, Calendar, and Chat.

Virtual Machine Manager
Run various operating systems in isolated sandboxes. Seamlessly clone, store, and migrate virtual machines.

Security
Secure data with comprehensive built-in security tools to protect your devices against evolving threats.

Public Cloud Integration
Back up and synchronize data easily between public cloud accounts and your NAS.

Limited 5-Year Warranty

Synology is committed to product innovation and quality. The RS3621xs+ is backed by a limited 5-year warranty that includes technical support and hardware replacement services to maximize your return on investment.

Synology Replacement Service (SRS)

SRS provides free advance replacement units as early as the next business day in selected regions, maximizing the service uptime for your mission-critical storage and ensuring your business continuity

Optimized for Data Protection and Integrity

Powered by Synology DSM, Synology's unified data management operating system, and built upon the Btrfs file system, data stored on the RS3621xs+ is safely guarded by modern data protection technologies.

Advanced Snapshots Technology
Provides schedulable and near-instantaneous data protection of shared folders and LUNs.

File and Folder-Level Data Restoration
Enables restoration of specific files or folders.

Flexible Storage Quota System
Helps admins effortlessly manage available space by specifying storage limits for shared folder.

File Self-Healing
Detects and recovers corrupted files using mirrored metadata and RAID configurations.

Inline Compression
Compresses data before writing it to the drive, reducing write commands and optimizing storage space.

Virtualization and Certified Storage

DSM streamlines the provisioning and management of storage for virtual machines (VM). Certified for VMware vSphere, Microsoft Hyper-V, Citrix XenServer, and OpenStack, it integrates with your virtualization platform of choice through iSCSI or NFS protocols. Install Synology Storage Console on VMware or Windows platforms for additional management convenience and functionality right in the hypervisor.

Synology Virtual Machine Manager
A hosted supervisor for virtual machines running Windows, Linux, or virtualized versions of DSM with recovery mechanisms that help ensure data protection on each VM.

Data Backup Solutions for IT Infrastructure

Synology Active Backup Suite
A collection of license-free backup solutions built to help protect Windows systems and servers, VMs, other file servers, and cloud-based storage.

Active Backup for Businesses (ABB)
Consolidates backup tasks for physical and virtual environments and enables rapid restoration of files, entire physical machines, and VMs.

Active Backup for G Suite
Enables backup of Google Workspace data, including Gmail, Contacts, Calendar, and Drive.

Active Backup for Microsoft 365
Enables backup of Microsoft 365 data, including OneDrive for Business, SharePoint Online, emails, contacts, and calendar.

On-Premises Collaboration

Synology's collaboration suite is a private SaaS for file sharing, concurrent document editing, emails, instant messaging, and more. By leveraging a private cloud infrastructure, it ensures data ownership while multilayered security enables secure multi-platform access.

Synology Drive
Allows data access, synchronization, on-demand file restoration, and backup.

Synology MailPlus
Provides a secure, reliable, and private email server.

Synology Chat
Brings teams together through instant multi-platform communication.

Synology Calendar
Helps teams keep track of what is most important with convenient calendar sharing and scheduling.
UPC: 846504004072

Synology RS3621xs+ Specs

Computing
CPU2.1 to 2.7 GHz 8-Core
ProcessorIntel Xeon D-1541
Total Installed Memory8 GB ECC DDR4
User-Replaceable Memory1 x 8 GB
Total Memory Slots4 x DIMM
Maximum Memory Capacity64 GB
General
Number of Bays12 x 2.5"/3.5"
I/O2 x USB Type-A (USB 3.1 / USB 3.2 Gen 1 (5 Gb/s))
2 x RJ45 (10GbE)
4 x RJ45 (Gigabit Ethernet)
2 x Infiniband
Compatible Drive InterfaceSATA III
Media Card SlotsNone
Form FactorRackmount (2 RU)
RAIDRAID 0, 1, 10, 5, 6, F1, JBOD
Hot-Swap SupportYes
PCI Expansion2 x PCIe 3.0 (x8 Electrical)
Wake on LANYes
Link Aggregation and Failover SupportYes
Networking
Supported ProtocolsAFP
CIFS/SMB
CalDAV
DLNA
FTP
HTTP
HTTPS
L2TP
LDAP
NFS
OpenVPN
PPTP
SMB
SNMP
SSH
Telnet
WebDAV
iSCSI
iSCSI LUN512
iSCSI Target256
Max Concurrent Connections2000
Max Folders512
Max Sync Tasks32
Max Groups512
Max User Accounts16,000
Max Volume Number256
Max Cameras Supported90
Software
Installed Operating SystemSynology OS
Supported File SystemsInternal: BTRFS, EXT4
External: BTRFS, EXT3, EXT4, FAT32, HFS+, NTFS, exFAT
OS CompatibilityWindows 7 or Later
macOS 10.12 or Later
Supported BrowsersChrome, Edge, Firefox, Internet Explorer, Safari
Supported LanguagesBrazilian Portuguese
Czech
Danish
Dutch
English
French
German
Hungarian
Italian
Japanese
Korean
Norwegian
Polish
Portuguese
Russian
Simplified Chinese
Spanish
Swedish
Thai
Traditional Chinese
Turkish
Security
EncryptionAES-NI (-Based)
VPN Server Connections40
Electrical
AC Input Power100 to 240 VAC, 50 / 60 Hz
Power SourceInternal Power Supply
Power Consumption142.5 W (Typical)
72.76 W (Standby)
PSU Wattage2 x 500 W (Supports Redundancy)
Environmental
Operating Temperature32 to 95°F / 0 to 35°C
Operating Humidity5 to 95%
Storage Temperature-5 to 140°F / -20 to 60°C
CertificationsRoHS, as per Manufacturer
Physical
Status MonitoringLED Indicator
Cooling4 x 80 mm Fans
Noise Level50.2 dBA
Weight32.0 lb / 14.5 kg
Packaging Info
Package Weight41 lb
Box Dimensions (LxWxH)33.5 x 24.25 x 8.75"

Synology RS3621xs+ Reviews

Synology Is The Way To Go

By Victor
Rated 5 out of 5
Date: 2022-05-20

Great Product i am mostly using it for Survaliance and its very fast had an old system over 7 years old and decided to get top of the line system again. Great Rackstation Thanks

Fast but Synology development path is concerning

By Jordan
Rated 4 out of 5
Date: 2022-02-24

I now have two of these boxes in service as 10Gbe multi-user video production file servers. Configured as 12x 16TB RAID6 (Note SHR is not available on this model), with a small SSD cache on both. Let me say first. These things are fast! Getting consisted 400-500 write and 900-1000 read with multiple users connected and using 4K ProRes bandwidth. DSM is s fairly easy to use, but AD has not worked on either box, even though we have no issue with it on Synology DS products. Major concern: Synology seems to be limiting their compatibility list on the newer products to favor their HDDs and other I/O devices. The 16TB Exos drives we are using are fully compatible with the 2418 (4 year old model), but they are not compatible with this box. Active SMART monitoring is available on the old box, but it has to be run manually on this. I was able to schedule it as an email notification check once a month at least. Hoping Synology will not be so anti-competitive in the future.

supports very few hard drive models

By Chris
Rated 1 out of 5
Date: 2022-01-04

I purchased this RS3621xs+ to replace my RS3617xs+. It was supposed to be the next model in the line. When I migrated my drives from the old to the new it informed me that the drives were an unsupported model. When I looked up the RS3621xs+ it says it supports 7 specific models of 3.5 hard drive, 3 of them Synology Brand. My RS3617xs+ supported hundreds. I would pass on this model and choose one with greater compatibility

See any errors on this page? Let us know

YOUR RECENTLY VIEWED ITEMS

What is the Write Speed?

What is the Write Speed?
Asked by: justin
The Synology RackStation RS3621xs+ does not have a write speed because this is an empty enclosure. Write speeds would depend on the drives you use with the enclosure.
Answered by: Geoffrey
Date published: 2021-12-16

Is this server compatible with Exos X18 drives? I ...

Is this server compatible with Exos X18 drives? I don't want to buy a platform that requires you to use proprietary and expensive drives
Asked by: michael
No, its only compatible with 1 Seagate EXOS drive and its not the x18. https://www.synology.com/en-us/compatibility?search_by=products&model=RS3621xs%2B&category=hdds_no_ssd_trim&p=1&change_log_p=1
Answered by: Robert
Date published: 2022-06-14
  • y_2022, m_7, d_4, h_21CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.32
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_2
  • loc_en_US, sid_1618910, prod, sort_[SortEntry(order=HAS_STAFF_ANSWERS, direction=DESCENDING)]
  • clientName_bhphotovideo