DiskStation DS1817
DiskStation DS1817
Powerful all-in-one private cloud solution
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.
Network
Two built-in 10GBASE-T LAN ports
Memory
4GB DDR3L, up to 8GB
High Performance
1,577 MB/s sequential reading
Scalability
Up to 18 drives with two DX517 expansion units
Synchronize files across your devices
Cloud Station Suite provides real-time data synchronization across all your devices and other Synology NAS. "Intelliversioning" keeps the most important file versions to better utilize storage space. Learn more

Cloud Station Drive

Cloud Station Server

DS Cloud
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.
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
Surveillance Station
Complete surveillance solution for recording, monitoring, and management.
Learn morePublic Cloud Integration
Backup and synchronize data easily between your public cloud accounts and your NAS.
Learn moreDSM UI
Award-winning operating system with an intuitive user interface and powerful capabilities.
Learn moreSecurity
Comprehensive built-in security tools are constantly updated to tackle evolving threats and protect your devices.
Learn moreHardware 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 Bays | 8 |
Maximum Drive Bays with Expansion Unit | 18 |
Compatible Drive Type* (See all supported drives) |
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Maximum Internal Raw Capacity | 96 TB (12 TB drive x 8) (Capacity may vary by RAID types) |
Maximum Raw Capacity with Expansion Units | 216 TB (96 TB + 12 TB drive x 10) (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 |
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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 |
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Easy Replacement System Fan | |
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 |
Certification |
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Warranty | 3 Year Hardware Warranty |
Notes |
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DSM Specifications ( See more ) | |
Storage Management | |
Maximum Internal Volume Number | 256 |
Maximum iSCSI Target Number | 32 |
Maximum iSCSI LUN | 256 |
iSCSI LUN Clone/Snapshot, Windows ODX | |
SSD Read/Write Cache (White Paper) | |
SSD TRIM | |
Supported RAID Type |
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RAID Migration |
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Volume Expansion with Larger HDDs |
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Volume Expansion by Adding a HDD |
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Global Hot Spare Supported RAID Type |
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File Sharing Capacity | |
Maximum Local User Accounts | 2048 |
Maximum Local Groups | 256 |
Maximum Shared Folder | 256 |
Maximum Shared Folder Sync Tasks | 4 |
Maximum Concurrent CIFS/AFP/FTP Connections | 1024 |
Windows Access Control List (ACL) Integration | |
NFS Kerberos Authentication | |
High Availability Manager | |
Log Center | |
Syslog Events per Second | 400 |
Virtualization | |
VMware vSphere 6 with VAAI | |
Windows Server 2012 | |
Windows Server 2012 R2 | |
Citrix Ready | |
OpenStack | |
Add-on Packages (learn more about the complete add-on package list) | |
Central Management System | |
Chat | |
Maximum Users | 800 |
Notes |
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Cloud Station Server | |
Maximum Number of Concurrently Connected Devices | 1024 |
Maximum Number of Concurrently Connected Devices (with RAM expansion) | 1200 |
Maximum Number of Synced Files (ext4) | 500,000 / single file reaction time 763 ms |
Notes |
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Download Station | |
Maximum Concurrent Download Tasks | 50 |
Drive | |
Maximum Number of Synced Files | 500,000 / single file reaction time 362 ms |
Maximum Number of Concurrent Connections for PC Clients | 450 |
Notes |
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exFAT Access (optional) | |
Media Server | |
DLNA Compliance | |
Moments | |
Facial recognition | |
Subject recognition | |
Office | |
Maximum Users | 150 |
Notes |
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Surveillance Station | |
Maximum IP cam (Licenses required) | 30 (including 2 Free License) (See All Supported IP Cameras) |
Total FPS (H.264)* |
900 FPS @ 720p (1280x720) 480 FPS @ 1080p (1920×1080) 300 FPS @ 3M (2048x1536) 250 FPS @ 5M (2591x1944) |
Total FPS (MJPEG)* |
480 FPS @ 720p (1280x720) 300 FPS @ 1080p (1920×1080) 250 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. |
Video Station | |
Video Transcoding | Group 1 - Type 2 (See more) |
Maximum Transcoding Channel Number | 1 channel, 30 FPS @ 720p (1280x720), H.264 (AVC)/MPEG-4 Part 2 (XVID, DIVX5)/MPEG-2/VC-1 |
VPN Server | |
Maximum Connections | 15 |
Environment & Packaging | |
Environment | RoHS Compliant |
Packaging Content |
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Optional Accessories |
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General | |
Networking Protocols |
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Windows AD Domain Integration | Domain Users login via Samba/AFP/FTP/File Station |
HDD Management |
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Security |
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Utilities | Synology Assistant |
Supported Clients |
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Supported Browsers |
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Supported Language | English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svenska, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český, 日本語, 한국어, 繁體中文, 简体中文 |