DiskStation DS1817
Powerful all-in-one private cloud solution

Overview:

Synology DiskStation DS1817 is the first value series model featuring two built-in 10GBASE-T ports and upgradable RAM module, and is powered by quad-core processor with hardware encryption engine and expandable scalability of up to 18 drives. DS1817 is the ideal solution for centralizing data backups, protecting critical assets, and sharing files across different platforms. Synology DS1817 is backed by Synology’s 3-year limited warranty.

• Scalable quad-core 8-bay storage solution with upgradable memory of up to 8GB
• Outstanding throughput at over 1,577 MB/s reading and 739 MB/s writing
• Two 10GBASE-T (RJ-45) ports with failover and Link Aggregation support
• Scalable up to 18 drives with two DX517 expansion units
• Synology High Availability (SHA) allows for uninterrupted services with seamless transitioning between clustered servers

Optimal Performance & Affordable Price

Synology DS1817 is a 8-bay network attached storage solution with great performance and scalability. DS1817 is equipped with a quad-core 1.7 GHz processor, pre-installed 4GB RAM, and two built-in 10GBASE-T LAN ports, delivering sequential throughput at over 1,577 MB/s reading and 739 MB/s writing under a RAID 5 configuration with 10GBASE-T ports link-aggregated1. The built-in 10GBASE-T and 1GBASE-T ports support failover and Link Aggregation. DS1817 is a reliable and cost-effective storage solution suitable for home and business.

Flexible Scalability

DS1817 can support up to 18 drives with two Synology DX5172 expansion units attached, hosting up to 180 TB of raw capacity. Storage capacity can be easily expanded according to corporate or personal needs.

Comprehensive Business Applications

Powered by the innovative Synology DiskStation Manager (DSM), DS1817 comes fullyequipped with applications and features designed specifically for growing businesses:

• Windows AD and LDAP support allow easy integration with existing business directory services without recreating user accounts.
• Windows ACL support provides fine-grained access control and efficient privilege settings, allowing DS1817 to fit seamlessly into current infrastructure.
• Internet file access is simplified by the encrypted FTP server and Synology File Station, which is a web-based file explorer. HTTPS, firewall, and IP auto-block support ensure file sharing over the Internet is protected with a high level of security

Virtualization Ready

DS1817 provides seamless storage solutions for virtualization environments, including VMware, Citrix, Hyper-V, and OpenStack. With VMware vSphere 6 and VAAI integration certified, DS1817 helps offload specific storage operations and optimizes computation power for unparalleled performance and efficiency in VMware environments. As the centralized storage of a virtual environment, DS1817 enables virtual machine migration, allowing movement from server to server whilst eliminating service downtime and disruption to users. Windows Offloaded Data Transfer (ODX) and Synology Advanced LUN support greatly improve the efficiency of massive data transfer and migration. With OpenStack support, DS1817 can be used as a block-based storage component for servers complying with the Cinder API.

Effective Synchronization & Backup Solution

DS1817 can serve as a centralized backup destination, making it easy to create a personal private cloud. Cloud Sync keeps your Dropbox, Google Drive, Microsoft OneDrive, Baidu, and Box storages in sync with DS1817 at home. Cloud Station Suite allows you to sync files among multiple devices, including Windows PC, Mac, Linux, and Android/iOS tablets and phones, effortlessly keeping everything up-to-date.

With block-level incremental backup and cross-version deduplication, Synology Hyper Backup provides multi-version backup with optimized storage utilization and allows data to be backed up to multiple destinations, including local shared folders, external hard drives, network shared folders, rsync servers, and public cloud services.

24/7 Smart Security Solution

Featuring user-friendly video management tools and an intuitive desktop-like interface, Synology Surveillance Station is a reliable private-security solution that can support multiple IP cameras connected to DS1817. Surveillance Station features optimized live view together with streamlined real-time monitoring. Its powerful analytics, such as motion detection and alert notification, allow you to stay informed of any suspicious activity with triggers sent via SMS, e-mail, and DS cam mobile application.

Reliability & Availability

The 10GBASE-T and 1GBASE-T LAN ports of DS1817 support failover and Link Aggregation, and the LAN ports are resilient against unexpected network or cable failure. Hot swappable drives minimize system downtime by allowing simplified and rapid drive replacement. Uninterrupted availability is a critical goal for all businesses. Synology High Availability (SHA) ensures seamless transition between clustered servers in the event of unexpected disasters and ensures that your services remain online. Optional 5-year warranty3 is available in select regions.

Features:

High capacity, fully-featured powerhouse

DS1817 is a powerful, scalable 8-bay NAS delivering outstanding data transfer rates. With built-in dual 10GbE LAN ports in addition to dual Gigabit ports, DS1817 supports Link Aggregation and failover functions for maximum performance and service continuity.

Synchronize files across your devices

Cloud Station Suite provides real-time data synchronization across all your devices, such as computers, mobile devices, and other Synology NAS whenever a file is modified. "Intelliversioning" keeps the most important file versions to better utilize storage space.

Ultimate file management and sharing

File Station is a web-based, fast and secure management tool built to allow easy, drag-and-drop operation without requiring any complex setup on Mac or PC. Advanced search and filtering tools allow for easy organization and sharing of files with just a link. Supports SMB, FTP, AFP, NFS, WebDAV, compatible with any environment.

Real-time collaboration on your private cloud

Office is a collaboration package combining the convenience and usability of public clouds with the data privacy and security guaranteed by private clouds. It allows you to work seamlessly together on documents and spreadsheets in a protected environment.

4K Multimedia Server

Access and stream your favorite 4K content anywhere, anytime. DS418 supports 10-bit 4K H.265 online transcoding via Video Station and DS video, allowing 4K videos to be converted and played on your computers, mobile devices, or other media players that don't support Ultra HD formats.

Maximize system uptime with Synology High Availability (SHA)

Enjoy a complete hardware and data redundancy solution with Synology High Availability (SHA) in case of unforeseen disasters. After joining two Synology NAS devices to form a high-availability cluster, the NAS acting as the active server will handle all data operations and services, while cloning the entire system to the passive standby server.

• Automatic failover
• Real-time protection, minimum data loss
• No-hassle installation and maintenance
• Maximize service availability for virtualization through iSCSI

Fully certified storage virtualization solutions

Synology iSCSI storage fully supports most virtualization solutions to enhance work efficiency with easy management interface. VMware vSphere 6 and VAAI integration helps offload storage operations and optimizes computation efficiency. Windows Offloaded Data Transfer (ODX) speeds up data transfer and migration rate. OpenStack Cinder support turns your Synology NAS into a block-based storage component.

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. Power port
9. Kensington Security Slot
10. USB 3.0 port
11. 10GbE RJ-45 port
12. 1GbE RJ-45 port
13. eSATA port
14. Reset button

Hardware Specifications:
CPU
CPU Model	Annapurna Labs Alpine AL-314
CPU Architecture	32-bit
CPU Frequency	Quad Core 1.7 GHz
Hardware Encryption Engine
Memory
System Memory	4 GB DDR3L
Memory Module Pre-installed	4GB (1 x 4GB)
Total Memory Slots	2
Memory Expandable up to	8 GB (4 GB x 2)
Storage
Drive Bay(s)	8
Maximum Drive Bays with Expansion Unit	18
Compatible Drive Type	3.5" SATA HDD 2.5" SATA HDD 2.5" SATA SSD
Maximum Internal Raw Capacity	80 TB (10 TB drive x 8) (Capacity may vary by RAID types)
Maximum Raw Capacity with Expansion Units	180 TB (10 TB drive x 18) (Capacity may vary by RAID types)
Maximum Single Volume Size	108 TB
Hot Swappable Drive
External Ports
RJ-45 1GbE LAN Port	2 (with Link Aggregation / Failover support)
RJ-45 10GbE LAN Port	2 (with Link Aggregation / Failover support)
USB 3.0 Port	2
eSATA Port	2
File System
Internal Drives	EXT4
External Drives	EXT4 EXT3 FAT NTFS HFS+ exFAT*
Notes	exFAT Access is purchased separately in Package Center.
Appearance
Size (Height X Width X Depth)	157 mm x 340 mm x 233 mm
Weight	5.31 kg
Others
System Fan	120 mm x 120 mm x 2 pcs
Fan Speed Mode	Cool Mode Quiet Mode
Brightness adjustable front LED indicators
Power Recovery
Noise Level	24.2 dB(A)
Scheduled Power On/Off
Wake on LAN/WAN
Power Supply Unit / Adapter	250W
AC Input Power Voltage	100V to 240V AC
Power Frequency	50/60 Hz, Single Phase
Power Consumption	59.1 W (Access)  26.4 W (HDD Hibernation)
British Thermal Unit	201.66 BTU/hr (Access)  90.08 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 B CE Class B BSMI Class B
Warranty	3 Years Hardware Warranty
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%
General DSM Specifications:
Networking protocol	SMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP, VPN (PPTP, OpenVPN , L2TP)
File system	Internal: ext4 External: ext4, ext3, FAT, NTFS, HFS+, exFAT4
Supported RAID type	Synology Hybrid RAID (SHR), Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10
Storage management	Maximum single volume size: 108 TB Maximum internal volume: 256 Maximum iSCSI target: 32 Maximum iSCSI LUN: 256 iSCSI LUN clone/snapshot support
SSD cache	SSD read-write cache support
File sharing capability	Maximum user account: 2048 Maximum group: 256 Maximum shared folder: 256 Maximum concurrent CIFS/AFP/FTP/File Station connection: 1024
Privilege	Windows Access Control List (ACL), application privilege
Directory service	Windows AD Integration: Domain Users login via Samba (CIFS)/AFP/FTP/File Station, LDAP integration
Virtualization	VMware vSphere 6, Microsoft Hyper-V, Citrix, OpenStack
Security	Firewall, encrypted shared folder, SMB encryption, FTP over SSL/TLS, SFTP, rsync over SSH, login auto block, Let's Encrypt support, HTTPS (Customizable cipher suite)
Supported client	Windows 7 and 10, Mac OS X 10.10 onwards
Supported browser	Chrome, Firefox, Internet Explorer: 10 onwards, Safari 10 onwards, Safari (iOS 10 onwards on iPad), Chrome (Android 6.0 onwards on tablets)
Language	English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svensk, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český
Packages and 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
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
Universal Search	Offer global search into applications and files
Hyper Backup	Support local backup, network backup, and backup data to public clouds
Active Backup for Server	Centralize data backup for Windows and Linux servers without client installation
Backup tools	DSM configuration backup, macOS Time Machine support, Cloud Station Backup Shared folder sync - maximum tasks: 4
Cloud Station Suite	Sync data between multiple platforms by installing the client utilities on Windows, Mac, Linux, Android and iOS devices, while retaining up to 32 historical versions of files Maximum concurrent file transfers: 1024
Cloud Sync	One or two-way synchronization with public cloud storage providers including Amazon Drive, Amazon S3-compatible storage, Baidu cloud, Box, Dropbox, Google Cloud Storage, Google Drive, hubiC, MegaDisk, Microsoft OneDrive, OpenStack Swift-compatible storage, WebDAV servers, Yandex Disk
Surveillance Station	Maximum IP cameras: 30 (total of 900 FPS at 720p, H.264) (includes two free camera licenses; additional cameras require the purchasing of additional licenses)
High Availability Manager	Reduce service downtime by setting up two identical NAS into one high-availability cluster
VPN Server	Maximum connection: 15, supported VPN protocol: PPTP, OpenVPN, L2TP/IPSec
Mail Server	Supported Mail Server protocol: POP3, SMTP, IMAP, support LDAP/AD account
Mail Station	Webmail interface for Mail Server to receive emails from multiple POP3 mailboxes, customizable SMTP server
Collaboration tools	Chat maximum users: 150 Office maximum users: 150, maximum simultaneous editing users: 40 Calendar: support CalDAV and access via mobile devices
Note Station	Rich-text note organization with 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
Security Advisor	Malware detection/removal, user account/password, network, system-related security scan
Antivirus Essential	Full system scan, scheduled scan, white list customization, virus definition auto update
Download Station	Supported Download Protocols: BT, HTTP, FTP, NZB, eMule, Thunder, FlashGet, QQDL Maximum concurrent download tasks: 50
Web Station	Virtual host (up to 30 websites), PHP/MariaDB, 3rd-party applications support
Other packages	Video Station, Photo Station, Audio Station, DNS Server, RADIUS Server, iTunes Server, Log Center, additional 3rd-party packages are available on Package Center
iOS/Android applications	DS audio, DS cam, DS cloud, DS file, DS finder, DS get, DS note, DS photo, DS video
Windows Phone applications	DS audio, DS file, DS finder, DS get, DS photo, DS video
Environment & Packaging:
Environment	RoHS Compliant
Packaging Content	DS1817 main unit x 1 Quick Installation Guide x 1 Accessory pack x 1 AC power adapter x 1 RJ-45 LAN cable x 2
Optional Accessories	4GB (RAM1600DDR3-4G) Synology Expansion Unit DX517 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 DS1817 supports up to two Synology DX517, sold separately.
³ 5 year warranty is available as an optional bundle with EW201, 2-year Extended Warranty service add-on. Visit https://www.synology.com/en-global/products/Extended_Warranty for more information on availability.
⁴ exFAT Access is purchased separately in Package Center.

Performance:

5-bay to 12-bay NAS

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	DS1817+ (8GB)	DS1817+ (2GB)	DS1517+ (8GB)	DS1517+ (2GB)	DS1817
Read	1179.13	1080.24	1165.08	1069.65	1577.61
Write	542.73	436.34	527.99	432.58	739.75

10GbE iSCSI - Random IOPS (4KB)

Model	DS1817+ (8GB)	DS1817+ (2GB)	DS1517+ (8GB)	DS1517+ (2GB)	DS1817
Read	28376.48	27509.97	27628.06	27185.71	27442.57
Write	24874.58	22580.64	19172.68	19975.26	12496.52

1GbE SMB - Sequential Throughput (64KB)

Model	RS2416(RP)+	DS2415+	DS1817+ (2GB)	DS1517+ (2GB)	DS1817	DS1517
Read	450.08	449.74	450.19	427.81	442.15	436.32
Write	400.46	396.19	400.93	384.7	405.8	449.69

Aggregated 1GbE SMB - Sequential Throughput via Encrypted Shared Folder (64KB)

Model	RS2416(RP)+	DS2415+	DS1817+ (2GB)	DS1517+ (2GB)	DS1817	DS1517
Read	427.49	425.5	425.12	411.09	344.22	334.16
Write	267.4	266.31	270.34	260.87	261.08	269.31

1GbE SMB - Windows File Transfer (3GB file x 1)

Model	RS2416(RP)+	DS2415+	DS1817+ (2GB)	DS1517+ (2GB)	DS1817	DS1517
Windows Download	112.53	112.7	112.14	112.32	111.13	111.2
Windows Upload	111.51	111.72	111.72	111.59	110.39	110.39

1GbE SMB - Windows File Transfer (1MB file x 3000)

Model	RS2416(RP)+	DS2415+	DS1817+ (2GB)	DS1517+ (2GB)	DS1817	DS1517
Windows Download	82.06	82.46	85.83	86.49	88.3	87.82
Windows Upload	63.08	62.55	64.54	63.86	66.2	66.71

1GbE SMB - Windows File Transfer via Encrypted Shared Folder (3GB file x 1)

Model	RS2416(RP)+	DS2415+	DS1817+ (2GB)	DS1517+ (2GB)	DS1817	DS1517
Windows Download	111.54	111.62	112.36	112.43	111.32	110.55
Windows Upload	106.39	106.06	108.7	108.9	99.93	99.51

1GbE SMB - Windows File Transfer via Encrypted Shared Folder (1MB file x 3000)

Model	RS2416(RP)+	DS2415+	DS1817+ (2GB)	DS1517+ (2GB)	DS1817	DS1517
Windows Download	79.01	79.64	80.87	81.11	81.3	78.47
Windows Upload	40.73	40.89	41.58	41.64	42.01	41.87

1GbE AFP - Mac File Transfer (3GB file x 1)

Model	RS2416(RP)+	DS2415+	DS1817+ (2GB)	DS1517+ (2GB)	DS1817	DS1517
AFP Download	93.47	94.64	93.82	94.43	93.28	94.99
AFP Upload	92.91	92.96	93.23	92.86	92.48	94.91

1GbE AFP - Mac File Transfer (1MB file x 3000)

Model	RS2416(RP)+	DS2415+	DS1817+ (2GB)	DS1517+ (2GB)	DS1817	DS1517
AFP Download	67.05	67.99	68.88	69.88	57.98	51.2
AFP Upload	54.23	55.37	55.81	55.98	64.67	57.12

1GbE Web Server - HTML Response Efficiency

Model	RS2416(RP)+	DS2415+	DS1817+ (2GB)	DS1517+ (2GB)	DS1817	DS1517
Responses per second	51013.37	51261.25	51474.37	51183.08	40548.71	38497.32

1GbE Web Server - PHP Response Efficiency

Model	RS2416(RP)+	DS2415+	DS1817+ (2GB)	DS1517+ (2GB)	DS1817	DS1517
Responses per second	10773.23	10801.16	10670.82	10785.98	9920.56	9897.51

NAS:

• Operating System: DSM 6.1
• Volume Type: RAID 5
• Drives:
  • DS1817+, DS1517+, DS1817: Fully loaded with Intel 535 Series 240GB SSDSC2BW240H6 SSD (10GbE network environments) / Seagate ST6000VN0001 6TB HDD (1GbE network environments)
  • Other models: Fully loaded with Seagate ST6000VN0001 6TB HDD
• File System:
  • EXT4: DS1817, DS1517
  • Btrfs: RS2416(RP)+, DS1817+, DS1517+, DS2415+
• Aggregated 10GbE SMB and 10GbE iSCSI Network Environments:
  • DS1817+, DS1517+: 2 x 10GbE ports (1 x Intel X520-DA2 NIC); MTU 9000; connected to client PCs via Juniper QFX5100-48S-AFO switch
  • DS1817: 2 x 10GbE ports (built-in); MTU 9000; connected to client PCs via Netgear M4300-24X24F switch
• 1GbE Network Environments:
  • For models with single 1GbE LAN port: MTU 1500; connected to 1 client PC via HP 2530-48G switch
  • For models with multiple 1GbE LAN ports: Link Aggregation is enabled for Sequential Throughput tests; MTU 1500; connected to client PCs via HP 2530-48G switch

Client PC:

• Aggregated 10GbE SMB and 10GbE iSCSI Network Environments: Intel Core i7-4790 3.60GHz; 4GB DDR3-1600; Intel X520-DA2 NIC; MTU 9000; Windows 7 64 bit
• 1GbE SMB Network Environments:
  • For NAS models with single 1GbE LAN port: Intel Core i7-3770 3.40GHz; 32GB DDR3-1866; RAMdisk with 14GB source partition and 14GB target partition; Intel Gigabit CT; MTU 1500; Windows 7 64-bit
  • For NAS models with multiple 1GbE LAN ports: Intel Core i7-3770 3.40GHz; 4GB DDR3-1600; Intel 520 (120GB) SSD x 2; striped volume; Intel Gigabit CT; MTU 1500; Windows 7 64-bit
• IOMeter setting for Sequential Throughput tests: Continuously read from/write to a single 16GB file (10GbE network environments) / 8GB file (1GbE network environments) 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
• 1GbE AFP Network Environment: Mac Mini; 2.3GHz 4 core Intel Core i7; 16GB DDR3-1600; RAMdisk with 7GB source partition and 4GB target partition; MTU 1500; OSX 10.9

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 DS1817 Datasheet  (PDF).