Performance Compatibility Downloads Compare

DiskStation DS3617xs

Business-class storage capacity and performance

High-performance NAS server with flexibility to scale

Synology DiskStation DS3617xs is a high-performance NAS server with easy scalability. Equipped with quad-core Xeon® D processor and 16GB DDR4 ECC RAM, DS3617xs delivers stunning reading and writing performance while ensuring data accuracy when handling mission-critical tasks.

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CPU

Quad-core Xeon® D up to 2.7 GHz

Memory

16GB DDR4 ECC RAM, up to 48GB

Ultra Performance

2,358 MB/s reading

Scalability

Up to 36 drives with DX1215

10GbE ready, and beyond

The PCIe 3.0 slot allows for faster networking as you expand your infrastructure. Together with the built-in quad Gigabit ports, DS3617xs offers comprehensive connectivity options for link aggregation and failover configurations.

5-year warranty

At Synology, we are committed to product innovation and quality. Synology guarantees a robust and reliable data management experience with a 5-year limited warranty, providing responsive technical support and hardware replacement services to maximize your return on investment.

Digital asset protection

Powered by Synology DiskStation Manager (DSM), Synology NAS offers advanced security measures to protect against sudden data loss and potential security holes. Learn more

Security Advisor

Analyze system settings, password strength and network preferences, and remove any possible malware.

AppArmor

A kernel-level enhancement that blocks malicious programs from accessing unauthorized system resources.

AES 256-bit encryption

Encrypt shared folders and network data transmission to avoid unauthorized data access.

2-step verification

Prevent others from logging in to your DSM by generating a six-digit one-time password (OTP) on your mobile device.

Complete iSCSI and virtualization solutions

Synology iSCSI storage supports most virtualization solutions such as VMware vSphere, Microsoft Hyper-V, Citrix Xen Server, and OpenStack Cinder to enhance work efficiency. You can run and manage multiple virtual machines on Windows, Linux, or DSM using Virtual Machine Manager. Learn more

Next-generation file system for better data protection

The Btrfs file system introduces advanced storage technologies and optimized snapshots to prevent data corruption and reduce maintenance overhead. While ensuring high-level data integrity, it also offers flexible, efficient data protection and recovery tools.

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Flexible shared folder and user quota settings provide comprehensive quota control on all user accounts and shared folder

Snapshot Replication provides schedulable and storage capacity-saving data protection with 1,024 shared folder backups and 65,000 system-wide snapshots

File- or folder-level data restoration accelerates data recovery and provides more flexibility for businesses

Automatic file self-healing detects and recovers corrupted files without user intervention

Powered by Synology DSM

Central Management System

Manage multiple Synology NAS servers simultaneously on a centralized interface to increase business efficiency.

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Synology MailPlus

Secure, reliable, and private mail server solution with an intuitive and modern mail client.

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Synology High Availability

Seamless transition between clustered servers in the event of a server failure to minimize the impact on applications.

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Synology Office

Collaborate on documents, spreadsheets, and slides in real time to boost team productivity.

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Snapshot Replication

Schedulable and instantaneous data protection of shared folders and iSCSI LUNs for quick disaster recovery.

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Surveillance Station

Complete surveillance solution for recording, monitoring, and management.

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  • 1 Status indicator
  • 2 Alert indicator
  • 3 Drive status indicator
  • 4 Drive tray lock
  • 5 Power button and indicator
  • 6 LAN indicator
  • 7 System fan
  • 8 PCIe 3.0 slot
  • 9 USB 3.0 port
  • 10 Expansion port
  • 11 Reset button
  • 12 Console port
  • 13 1GbE RJ-45 port
  • 14 Power port
  • Hardware Specs
  • Software Specs

Hardware Specifications

CPU

CPU

 CPU Model Intel Xeon D-1527
CPU Architecture 64-bit
CPU Frequency 4-core 2.2 (base) / 2.7 (turbo) GHz
Hardware Encryption Engine (AES-NI)

Memory

Memory

 System Memory 16 GB DDR4 ECC SODIMM
Memory Module Pre-installed 16 GB (8 GB x 2)
Total Memory Slots 4
Maximum Memory Capacity 48 GB (16 GB + 16 GB x 2)
Notes
  • Please select Synology memory modules for optimum compatibility and reliability. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion.
  • Synology reserves the right to replace memory modules with the same or higher frequency based on supplier's product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance.

Storage

Storage

 Drive Bays 12
Maximum Drive Bays with Expansion Unit 36 (DX1215 x 2)
Compatible Drive Type* (See all supported drives)
  • 3.5" SATA HDD
  • 2.5" SATA HDD
  • 2.5" SATA SSD
Maximum Single Volume Size*
  • 200 TB (32 GB RAM required, for RAID 5 or RAID 6 groups only)
  • 108 TB
Hot Swappable Drive
Notes
  • "Compatible drive type" indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay.
  • Each internal volume (may consist of multiple drives) is expandable up to 108 TB (with memory less than 32 GB) or 200 TB (with memory equal to or greater than 32 GB).

External Ports

External Ports

 RJ-45 1GbE LAN Port 4 (with Link Aggregation / Failover support)
USB 3.0 Port 2
Expansion Port 2

PCIe

PCIe

 PCIe Expansion 1 x Gen3 x8 slot (x8 link)

File System

File System

 Internal Drives
  • Btrfs
  • EXT4
External Drives
  • Btrfs
  • EXT4
  • EXT3
  • FAT
  • NTFS
  • HFS+
  • exFAT*
Notes exFAT Access is purchased separately in Package Center.

Appearance

Appearance

 Size (Height x Width x Depth) 270 mm x 300 mm x 340 mm
Weight 9.8 kg

Others

Others

 System Fan 120 mm x 120 mm x 2 pcs
Fan Speed Mode
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
Easy Replacement System Fan
Power Recovery
Noise Level* 22.3 dB(A)
Scheduled Power On / Off
Wake on LAN / WAN
Power Supply Unit / Adapter 500 W
AC Input Power Voltage 100 V to 240 V AC
Power Frequency 50/60 Hz, Single Phase
Power Consumption* 108.2 W (Access)
53.4 W (HDD Hibernation)
British Thermal Unit 369.4 BTU/hr (Access)
182.3 BTU/hr (HDD Hibernation)
Notes
  • Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s).
  • Noise Level Testing Environment: Fully loaded with Seagate 2TB ST2000VN000 hard drive(s) in the idle state. Two G.R.A.S. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%

Temperature

Temperature

 Operating Temperature 5°C to 40°C (40°F to 104°F)
Storage Temperature -20°C to 60°C (-5°F to 140°F)
Relative Humidity 5% to 95% RH

Certification

Certification
  • FCC
  • CE
  • BSMI
  • EAC
  • KC
  • VCCI
  • RCM

Warranty

Warranty

 5 Years
Notes The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)

Environment

Environment

 RoHS Compliant

Packaging Content

Packaging Content
  • Main Unit X 1
  • Accessory Pack X 1
  • AC Power Cord X 1
  • RJ-45 LAN Cable X 2
  • Quick Installation Guide X 1

Optional Accessories

Optional Accessories
Notes
  • All memory modules will operate at the maximum frequency specified by the CPU manufacturer.
  • DS3617xs with M2D18 can only support M.2 SATA SSD. M.2 NVMe/AHCI PCIe SSD is not supported.

DSM Specifications

Storage Management

Storage Management

 Maximum Internal Volume Number 128
Maximum iSCSI Target Number 256
Maximum iSCSI LUN 512
iSCSI LUN Clone/Snapshot, Windows ODX
SSD Read / Write Cache (White Paper)
SSD TRIM
RAID Group
Supported RAID Type
  • RAID F1
  • Basic
  • JBOD
  • RAID 0
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
RAID Migration
  • Basic to RAID 1
  • Basic to RAID 5
  • RAID 1 to RAID 5
  • RAID 5 to RAID 6
Volume Expansion with Larger HDDs
  • RAID F1
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
Volume Expansion by Adding a HDD
  • RAID F1
  • JBOD
  • RAID 5
  • RAID 6
Global Hot Spare Supported RAID Type
  • RAID F1
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10

File Services

File Services

 File Protocol CIFS/AFP/NFS/FTP/WebDAV
Maximum Concurrent CIFS/AFP/FTP Connections 2,000
Maximum Concurrent CIFS/AFP/FTP Connections (with RAM expansion) 10,000
Windows Access Control List (ACL) Integration
NFS Kerberos Authentication
Notes
  • Regarding data concerning tests with RAM expansion, all memory slots are installed with the maximum capacity of supported RAM.
  • During testing, the maximum number of SSDs supported by this model is installed in a RAID 5 configuration.

Account & Shared Folder

Account & Shared Folder

 Maximum Local User Accounts 16,000
Maximum Local Groups 512
Maximum Shared Folder 512
Maximum Shared Folder Sync Tasks 16

High Availability

High Availability

 Synology High Availability

Log Center

Log Center
Syslog Events per Second 3,000

Virtualization

Virtualization

 VMware vSphere 6 with VAAI
Windows Server 2012
Windows Server 2012 R2
Windows Server 2016
Windows Server 2019
Citrix Ready
OpenStack

General Specifications

General Specifications

 Networking Protocols SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV
Supported Browsers
  • Google Chrome
  • Firefox
  • Microsoft Edge
  • Internet Explorer 10 onwards
  • Safari 10 onwards
  • Safari (iOS 10 onwards)
  • Google Chrome (Android 6.0 onwards)
Supported Language English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svenska, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český, ภาษาไทย, 日本語, 한국어, 繁體中文, 简体中文

Add-on Packages view the complete package list

Antivirus by McAfee (Trial)

Antivirus by McAfee (Trial)

Central Management System

Central Management System

Synology Chat

Synology Chat
Maximum Users 4,000
Notes
  • The number of concurrent HTTP connections for Synology Chat was configured to the maximum.
  • CPU and RAM usage were both under 80% when the number of maximum users was reached.
  • For tested models with expandable memory, the maximum amount of RAM was installed.

Cloud Station Server

Cloud Station Server
Recommended Number of Hosted Files 3,000,000
Recommended Number of Concurrent Sync Clients 1,800 (the number of connections that can be maintained when the recommended number of hosted files was reached)
Notes
  • The maximum number of concurrently connected devices refers to the maximum number of devices that can remain connected at the same time.
  • The maximum number of hosted files refers to the maximum number of files that can be indexed and hosted by the Cloud Station Server service. RAM expansion was not used during testing.
  • Non-encrypted shared folders were used during the aforementioned testing.

Document Viewer

Document Viewer

Download Station

Download Station
Maximum Concurrent Download Tasks 80

exFAT Access (Optional)

exFAT Access (Optional)

Synology MailPlus / MailPlus Server

Synology MailPlus / MailPlus Server
Free Email Accounts 5 (Licenses required for additional accounts)
Maximum Number of Concurrent Users 450
Maximum Server Performance 3,363,000 emails per day, approx. 102GB
Notes
  • The CPU and RAM usage were both under 80% when testing the maximum number of concurrent users.
  • Models with more than 4 bays were installed with two SSDs for SSD cache.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • The performance of the mail system will slightly decrease in high-availability mode due to data synchronization between the two servers.
  • Functions that were enabled in all of the tests above: anti-spam, anti-virus, DNSBL, greylist, content scan, full-text search (English only).

Media Server

Media Server
DLNA Compliance

Moments

Moments
Facial Recognition
Subject Recognition
Auto Color & Rotate
Moments Select

PetaSpace

PetaSpace

Snapshot Replication

Snapshot Replication
Maximum Snapshots per Shared Folder 1,024
Maximum of System Snapshots 65,536

Surveillance Station

Surveillance Station
Maximum IP cam (Licenses required) 75 (including 2 Free License) (See All Supported IP Cameras)
Total FPS (H.264) 2250 FPS @ 720p (1280x720)
1050 FPS @ 1080p (1920x1080)
600 FPS @ 3M (2048x1536)
500 FPS @ 5M (2591x1944)
500 FPS @ 4K (3840x2160)
Total FPS (H.265) 2250 FPS @ 720p (1280x720)
2250 FPS @ 1080p (1920x1080)
2250 FPS @ 3M (2048x1536)
1875 FPS @ 5M (2591x1944)
975 FPS @ 4K (3840x2160)
Total FPS (MJPEG) 900 FPS @ 720p (1280x720)
450 FPS @ 1080p (1920x1080)
280 FPS @ 3M (2048x1536)
200 FPS @ 5M (2591x1944)
Notes
  • Surveillance Station throughput is tested with Axis network camera, using continuous recording with live view from Surveillance Station and motion detection by camera. Live view and recording are sharing the same stream from the camera.
  • The maximum channel number also includes devices installed on Virtual DSM.
  • Total FPS may be affected by other services running at the same time (e.g., archive tasks performed by Archive Vault).

Synology Drive

Synology Drive
Recommended Number of Hosted Files 3,000,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above)
Recommended Number of Concurrent Sync Clients 1,800 (the number of connections that can be maintained when the recommended number of hosted files was reached)
Notes
  • For tested models with expandable memory, the maximum amount of RAM was installed. (Utilizing SSD cache can significantly improve performance.)
  • Exceeding the recommended numbers above will not block application operations, but may result in longer response time.
  • Btrfs file system and non-encrypted shared folders were used during the aforementioned testing.

Synology Office

Synology Office
Maximum Users 2,900
Notes
  • Multiple files were opened for testing and each file was edited by 30 users simultaneously.
  • CPU and RAM usage were both under 80% when the number of maximum users was reached.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM

Video Station

Video Station
Video Transcoding Group 1 - Type 1 (See more)
Maximum Transcoding Channel Number 1 channel, 30 FPS @ 1080p(1920×1080), H.264 (AVC)/MPEG-4 Part 2 (XVID, DIVX5)/MPEG-2/VC-1

Virtual Machine Manager

Virtual Machine Manager
Recommended Virtual Machine Instances 8 (Learn more)
Recommended Virtual DSM Number (Licenses required) 8 (including 1 Free License)
Notes The specifications vary depending on system configuration and memory size.

VPN Server

VPN Server
Maximum Connections 40

Notes:

  • Model specifications are subject to change without prior notice.
  • The figures are based on Synology internal testing. Each performance test is done individually. No other services or applications are processed at the same time.
  • The actual performance may be lower than lab testing figure due to differences in server configuration, deployment, and the number of active operations.
  • If usage requirements exceed the above recommended specifications, please contact us.