DiskStation DS3617xs
Business-class storage capacity and performance for demanding work environments

Features:

High-performance rackmount NAS with easy scalability

RS3617xs is designed to allow for effortless scalability up to 36 drive bays. The quad-core Xeon processor is suitable for running additional virtual machines while meeting intensive data transfer requirements.

Complete iSCSI and virtualization solutions

Synology iSCSI storage supports most virtualization solutions including VMware vSphere, Microsoft Hyper-V, Citrix Xen Server, and OpenStack Cinder, to enhance work efficiency. Create and manage virtual machines running multiple operating systems such as Windows, Linux, and DSM using Virtual Machine Manager.

Btrfs: Next generation storage efficiency

Btrfs file system introduces the most advanced storage technologies to meet the management needs of modern large scale businesses:

• Flexible Shared Folder/User Quota System provides comprehensive quota control on all user accounts and shared folders
• 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 makes data recovery fast and flexible
• Automatic file self-healing detects and recovers corrupted files without user intervention

Powered by Synology DSM

Product Views:

Technical Specifications:

1. Status indicator
2. Alert indicator
3. Drive status indicator
4. Drive tray lock
5. Power button and indicator
6. LAN indicator
7. 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 Specifications:
CPU
CPU Model	Intel Xeon D-1527
CPU Architecture	64-bit
CPU Frequency	Quad Core 2.2 (base) / 2.7 (turbo) GHz
Hardware Encryption Engine (AES-NI)
Memory
System Memory	16 GB DDR4 ECC SO-DIMM
Memory Module Pre-installed	16GB (2 x 8GB)
Total Memory Slots	4
Memory Expandable up to	48 GB (16 GB + 16 GB x 2)
Storage
Drive Bay(s)	12
Maximum Drive Bays with Expansion Unit	36
Compatible Drive Type	3.5" SATA HDD 2.5" SATA HDD 2.5" SATA SSD
Maximum Internal Raw Capacity	120 TB (10 TB drive x 12) (Capacity may vary by RAID types)
Maximum Raw Capacity with Expansion Units	360 TB (10 TB drive x 36) (Capacity may vary by RAID types)
Maximum Single Volume Size	200 TB (32GB RAM required, for RAID 5 or RAID 6 groups only) 108 TB
Hot Swappable Drive
External Ports
RJ-45 1GbE LAN Port	4 (with Link Aggregation / Failover support)
USB 3.0 Port	2
Expansion Port	2
PCIe
PCIe Expansion	1 x Gen3 x8 slot (x8 link)
Add-in-card support	PCIe Network Interface Card
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
Size (Height X Width X Depth)	270 mm x 300 mm x 340 mm
Weight	9.8 kg
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	500W
AC Input Power Voltage	100V to 240V 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)
Environment 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
Other
Certification	FCC Class A CE Class A BSMI Class A
Warranty	5 Years
Notes	Power consumption is measured when fully loaded with Western Digital 1TB WD10EFRX hard drive(s). Noise Level Testing Environment: Fully loaded with Seagate 1TB ST31000520AS hard drive(s) in idle; Two G.R.A.S. Type 40AE microphones, each set up at 1 meter away from the Synology NAS front and rear; Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%
DSM Specifications:
Networking protocol	CIFS, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP, VPN (PPTP, OpenVPN, L2TP)
File system	Internal: Btrfs, ext4 External: Btrfs, ext4, ext3, FAT, NTFS, HFS+, exFAT3
Supported RAID type	Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10
Storage management	Maximum single volume size: 108TB/200TB (32GB RAM required, for RAID 5 or RAID 6 groups only) Maximum internal volume: 1024 Maximum iSCSI target: 64 Maximum iSCSI LUN: 512 iSCSI LUN clone / snapshot support
File sharing capability	Maximum user account: 16000 Maximum group: 512 Maximum shared folder: 512 Maximum concurrent SMB/AFP/FTP/File Station connections : 2048
Privilege	Windows Access Control List (ACL)
Virtualization	VMware vSphere 6, Microsoft Hyper-V, Citrix, OpenStack
Directory service	Windows AD integration: Domain users login via Samba (CIFS) / AFP / FTP / File Station, LDAP integration
Security	FTP over SSL / TLS, IP auto-block, firewall, encrypted network backup over Rsync, HTTPS connection
Utilities	Synology Web Assistant, Cloud Station Drive, Cloud Station Backup, Cloud Sync Decryption Tool, Evidence Integrity Authenticator, Photo Station Uploader, Snapshot Manager for VMware, Snapshot Manager for Windows, NFS Plug-in for VMware VAAI
Supported client	Windows 7 onward, Mac OS X 10.10 onwards
Supported browser	Chrome, Firefox, Internet Explorer 9 onwards, Safari 8 onwards; Safari (iOS 7 onwards), Chrome (Android 4.0 onwards) on tablets
Interface language	English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svensk, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český
Applications:
File Station	Virtual drive, remote folder, Windows ACL editor, compress/extract archived files, bandwidth control for specific users or groups, create sharing links, transfer logs
Backup solutions	Network backup; local backup; desktop backup; configuration backup; OS X Time Machine; backup data to public cloud; shared folder sync - maximum task number: 16
FTP Server	Bandwidth control for TCP connections, custom FTP passive port range, anonymous FTP, FTP SSL/TLS and SFTP protocols, boot over the network with TFTP and PXE support, transfer logs
High Availability Manager	Combines two DS3617xs into one high-availability cluster
Security Advisor	Malware detection/removal, user account/password, network, system-related security scan
iOS/Android applications	DS cloud, DS file, DS finder, DS cam, DS note, MailPlus
Windows Phone applications	DS file, DS finder
Add-on Packages:
Antivirus Essential	Full system scan, scheduled scan, white list customization, virus definition auto update
Cloud Station Suite	Maximum concurrent file transfers: 2000, retain historical and deleted file versions
Cloud Sync	One or two-way synchronization with public cloud storage providers including Amazon Cloud Drive, Amazon S3-compatible storage, Baiduyun, Box, Dropbox, Google Cloud Storage, Google Drive, hubiC, Megafon Disk, Microsoft OneDrive, OpenStack Swift-compatible storage, WebDAV servers, Yandex Disk
Log Center	SSL connection, log rotation: 6 months, 1 year, 2 years, 3 years, email notification
MailPlus	Intuitive webmail interface for MailPlus Server; customizable mail labels, filters and user interface
MailPlus Server	Secure, reliable, and private mail solution with High-availability, load balancing, security and filtering design (Includes 5 free email account licenses; additional accounts require the purchasing of additional licenses)
Note Station	Rich-text note organization and versioning, encryption, sharing, media embedding and attachments
Storage Analyzer	Volume and quota usage, total size of files, volume usage and trends based on past usage, size of shared folders, largest/most/least frequently modified files
Surveillance Station	Maximum IP camera: 75 (total of 2250 FPS at 720p, H.264) (Including two free camera licenses. Procurement of additional licenses is required.)
VPN Server	Maximum connections: 30; supported VPN protocol: PPTP, OpenVPN, L2TP
Web Station	Virtual host (up to 30 websites), PHP/MariaDB, 3rd-party applications support
Other packages	Photo Station, Audio Station, iTunes Server, additional 3rd-party packages are available on Package Center
Environment & Packaging:
Environment	RoHS Compliant
Packaging Content	DS3617xs main unit Quick Installation Guide Accessory pack AC power cord
Optional Accessories	16 GB DDR4-2133 ECC SO-DIMM (RAMEC2133DDR4SO-16G) Synology E10G17-F2 / E10G15-F1 10Gbps Ethernet adapters Synology Expansion Unit DX1215 Synology VS360HD Surveillance Device License Pack

*Model specifications are subject to change without notice. Please refer to www.synology.com for the latest information.
¹ Performance figures may vary depending on environment, usage and configuration.
² Available in selected countries only. For detailed terms and conditions, please visit the Synology Replacement Service (SRS) website at https://srs.synology.com.
³ exFAT Access is purchased separately in Package Center

Performance:

XS(+) Series

Synology strives to enhance the performance of our NAS with every software update, even long after a product is launched. For enterprises and users that demand uncompromising performance from their servers, check the figures below to find the most suitable choice.

Aggregated 10GbE SMB - Sequential Throughput (64KB)

Model	RC18015xs+	RS18017xs+	RS4017xs+	RS3617xs+	RS3617RPxs	RS3617xs	DS3617xs	DS3018xs
Read	2153.26	4871.75	5959.87	5293.29	3914.71	3011.78	2358.6	2231.45
Write	1646.98	2077.93	2494.28	2062.35	1909.8	1634.64	1923.5	878.64

Aggregated 10GbE SMB - Sequential Throughput via Encrypted Shared Folder (64KB)

Model	RC18015xs+	RS18017xs+	RS4017xs+	RS3617xs+	RS3617RPxs	RS3617xs	DS3617xs	DS3018xs
Read	2140.52	3154.22	3550.04	3040.51	2384.06	2165.94	2198.39	1308.42
Write	1165.17	1581	1892.7	1603.86	1177.12	1157.94	1129.36	544.49

Aggregated 10GbE SMB - Sequential IOPS (4KB)

Model	RC18015xs+	RS18017xs+	RS4017xs+	RS3617xs+	RS3617RPxs	RS3617xs	DS3617xs	DS3018xs
Read	339248.25	677184.62	844590.31	693865.69	491753.22	334383.03	450188.62	265013.31
Write	222354.08	386948.28	487332.22	408227.22	285828.44	220133.81	277429.56	136649.5

Aggregated 10GbE SMB - Random IOPS (4KB)

Model	RC18015xs+	RS18017xs+	RS4017xs+	RS3617xs+	RS3617RPxs	RS3617xs	DS3617xs	DS3018xs
Read	122037.35	188257.09	224750.75	175939.66	123905.24	112116.19	121069.69	63283.13
Write	49430.67	75536.17	70285.04	68485.04	65774.18	47137.35	65832.91	42229.71

10GbE iSCSI - Random IOPS (4KB)

Model	RC18015xs+	RS18017xs+	RS4017xs+	RS3617xs+	RS3617RPxs	RS3617xs	DS3617xs	DS3018xs
Read	152559.09	204686.62	252087.59	198761.78	143549.44	146113.95	141099.25	100753.34
Write	77043.49	82728.79	94094	82147.87	75815.4	84760.06	71464.02	37810.4

1GbE Web Server - HTML Response Efficiency

Model	RC18015xs+	RS18017xs+	RS4017xs+	RS3617xs+	RS3617RPxs	RS3617xs	DS3617xs	DS3018xs
Responses per second	206844.45	206230.02	206829.64	206029.56	203557.34	207195.69	203230.31	154099.02

1GbE Web Server - PHP Response Efficiency

Model	RC18015xs+	RS18017xs+	RS4017xs+	RS3617xs+	RS3617RPxs	RS3617xs	DS3617xs	DS3018xs
Responses per second	59770.68	82017.29	94612.93	82507.9	60403.53	59953.64	57127.87	31322.65

NAS:

• Operating System: DSM 6.1
• Volume Type: RAID 5
• Drives:
  • RC18015xs+ with RXD1215sas, RS18017xs+: Fully loaded with HGST HUSMH8020BSS200 SAS SSD
  • DS3018xs: Fully loaded with Intel DC S3710 series 800GB SSDSC2BA800G4 SATA SSD
  • Other models: Fully loaded with Intel 535 series 240GB SSDSC2BW240H6 SSD
• Memory:
  • RS18017xs+: 32GB DDR4 ECC RDIMM (16GB x 2)
  • RS4017xs+, RS3617xs+, RS3617RPxs: 16GB DDR4 ECC UDIMM (8GB x 2)
  • DS3018xs: 32GB DDR4 ECC SO-DIMM (16GB x 2)
  • Other models: System default capacity
• File System: Btrfs
• Aggregated 10GbE SMB and 10GbE iSCSI network environment:
  • RS18017xs+, RS4017xs+, RS3617xs+: 6 x 10GbE ports (built-in 10GbE ports + 2 x Intel X540-T2 NIC); MTU 9000; connected to client PCs via Netgear M4300-24X24F switch
  • RS3617RPxs, RS3617xs: 4 x 10GbE ports (2 x Intel X520-DA2 NIC); MTU 9000; connected to client PCs via Juniper QFX5100-48S-AFO switch
  • RC18015xs+, DS3617xs, DS3018xs: 2 x 10GbE ports (1 x Intel X520-DA2 NIC); MTU 9000; connected to client PCs via Juniper QFX5100-48S-AFO switch

Client PC:

• For RS18017xs+, RS4017xs+, RS3617xs+: Intel Core i7-4790 3.60GHz; 4GB DDR3-1600; Synology E10G17-F2 NIC; MTU 9000; Windows 7 64 bit
• For other models: Intel Core i7-4790 3.60GHz; 4GB DDR3-1600; Intel X520-DA2 NIC; MTU 9000; Windows 7 64 bit
• IOMeter configuration: Continuously read from/write to a single 16GB file for 3 minutes; Block size: 64KB for SMB, 4KB for IOPS and iSCSI
• 1GbE Web Server Network Environment:
  • Intel Core i7-6700 3.40GHz; 16GB DDR4-2133; Intel Gigabit CT; MTU 1500; Ubuntu 16.04
  • (html) wrk -t 8 -c [10-250] -d 60s -H "Host: benchmark" http://DS_IP/index.html
  • (php) wrk -t 8 -c [10-250] -d 60s -H "Host: benchmark"http://DS_IP/echo.php

Special Note:

• Performance figures are achieved in the Synology lab by using very powerful client computers with optimized network settings, and could vary in different environments. Regular office desktop or notebook computers may not be able to reproduce these figures.

Documentation:

Download the Synology DiskStation DS3617xs Datasheet  (PDF).