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DiskStation DS1517

Performance Compatibility Download Center Compare
Performance Compatibility Download Center Compare

DiskStation DS1517

Powerful all-in-one private cloud solution

High capacity, fully-featured powerhouse

DS1517 is a powerful, scalable 5-bay NAS delivering outstanding data transfer rates. Built-in four Gigabit LAN ports enables Link Aggregation and failover functions for maximum performance and service continuity.

CPU

Quad-core 1.7GHz

Memory

2GB DDR3L

High Performance

449 MB/s sequential writing

Scalability

Up to 15 drives with two DX517 expansion units

Engineered for reliability, backed by Synology

DS1517 is designed to reliably store your data and is backed by Synology's three-year hardware warranty. An optional two-year extended warranty is available in select regions for up to five years of coverage. Learn more

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 Sharesync

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 operations without requiring any complex setup on Mac or PC. Advanced search and filtering tools allow for easy organization and file sharing. For complete compatibility, DS1517 supports the following protocols: AFP, FTP, iSCSI, NFS, SMB, and WebDAV.

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.

Real-time collaboration on the same online documents to boost productivity,

Instant communication on Synology Chat during the editing of documents or spreadsheets

Version control for you to navigate all the changes and retrieve previous versions with just a click

  1. Real-time collaboration on the same online documents to boost productivity,
  2. Instant communication on Synology Chat during the editing of documents or spreadsheets
  3. Version control for you to navigate all the changes and retrieve previous versions with just a click

Easy file access with QuickConnect

Access files on your Synology NAS over the Internet without the hassle of setting up port forwarding rules, DDNS, or other complicated network settings. QuickConnect allows you to connect via a secure, customizable address, so that you can instantly access media and work files on any Internet-connected device with no additional charge.

Powered by Synology DSM

Surveillance Station

Complete surveillance solution for recording, monitoring, and management.

Learn more

Desktop Backup

Simplified backup solution for your Mac, PC, and mobile devices.

Learn more

Public Cloud Integration

Backup and synchronize data easily between your public cloud accounts and your NAS.

Learn more

DSM UI

Award-winning operating system with an intuitive user interface and powerful capabilities.

Learn more

Security

Comprehensive built-in security tools are constantly updated to tackle evolving threats and protect your devices.

Learn more

Multimedia

Complete multimedia solution for management, streaming, and playback.

Learn more
  • 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 eSATA port
  • 11 USB 3.0 port
  • 12 1GbE RJ-45 port
  • 13 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 2 GB DDR3L
Storage
Drive Bays 5
Maximum Drive Bays with Expansion Unit 15
Compatible Drive Type* (See all supported drives)
  • 3.5" SATA HDD
  • 2.5" SATA HDD
  • 2.5" SATA SSD
Maximum Internal Raw Capacity 70 TB (14 TB drive x 5) (Capacity may vary by RAID types)
Maximum Raw Capacity with Expansion Units 210 TB (70 TB + 14 TB drive x 10) (Capacity may vary by RAID types)
Maximum Single Volume Size 108 TB
Hot Swappable Drive
Notes
  • "Compatible drive type" indicates the drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay.
  • The maximum raw capacity is not limited by the maximum single volume size. Synology NAS models may utilize capacities over the maximum single volume size as long as each volume created is below the limit. (Learn more)
  • Expansion of the internal volume is only supported if the combined single volume size does not exceed the maximum limit of 108TB.
External Ports
RJ-45 1GbE LAN Port 4 (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 248 mm x 233 mm
Weight 4.15 kg
Others
System Fan 80 mm x 80 mm x 2 pcs
Fan Speed Mode
  • Cool Mode
  • Quiet Mode
Easy Replacement System Fan
Power Recovery
Noise Level* 22.4 dB(A)
Scheduled Power On/Off
Wake on LAN/WAN
Power Supply Unit / Adapter 200W
AC Input Power Voltage 100V to 240V AC
Power Frequency 50/60 Hz, Single Phase
Power Consumption* 39.5 W (Access)
18.2 W (HDD Hibernation)
British Thermal Unit 134.78 BTU/hr (Access)
62.10 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
  • EAC
  • CCC
  • RCM
  • KC
  • FCC
  • CE
  • BSMI
Warranty 3 Year Hardware Warranty, Extendable to 5 Year Coverage - EW201
Notes
  • Power consumption is measured when fully loaded with Western Digital 1TB WD10EFRX hard drive(s).
  • Noise Level Testing Environment: Fully loaded with Seagate 2TB ST2000VN000 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 ( See more )
Storage Management
Maximum Internal Volume Number 256
Maximum iSCSI Target Number 128
Maximum iSCSI LUN 256
iSCSI LUN Clone/Snapshot, Windows ODX
SSD Read/Write Cache (White Paper)
SSD TRIM
Supported RAID Type
  • Synology Hybrid RAID
  • 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
  • Synology Hybrid RAID
  • RAID 1
  • RAID 5
  • RAID 6
Volume Expansion by Adding a HDD
  • Synology Hybrid RAID
  • RAID 5
  • RAID 6
  • JBOD
Global Hot Spare Supported RAID Type
  • Synology Hybrid RAID
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
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 500
Windows Access Control List (ACL) Integration
NFS Kerberos Authentication
High Availability Manager
Log Center
Syslog Events per Second 400
Add-on Packages (learn more about the complete add-on package list)
Central Management System
Chat
Maximum Users 800
Notes
  • The number of concurrent HTTP connections for Chat was configured to the maximum.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
Cloud Station Server
Maximum Number of Concurrently Connected Devices 500
Maximum Number of Hosted Files (ext4) 500,000
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.
Download Station
Maximum Concurrent Download Tasks 50
Drive
Maximum Number of Hosted Files 500,000
Maximum Number of Concurrent Connections for PC Clients 450
Notes The EXT4 file system was used for the purpose of testing.
exFAT Access (optional)
Media Server
DLNA Compliance
Moments
Facial recognition
Subject recognition
Office
Maximum Users 400
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.
  • Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM
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)
300 FPS @ 1080p (1920×1080)
200 FPS @ 3M (2048x1536)
150 FPS @ 5M (2591x1944)
50 FPS @ 4K (3840x2160)
Total FPS (H.265)* 900 FPS @ 720p (1280x720)
900 FPS @ 1080p (1920×1080)
660 FPS @ 3M (2048x1536)
330 FPS @ 5M (2591x1944)
150 FPS @ 4K (3840x2160)
Total FPS (MJPEG)* 250 FPS @ 720p (1280x720)
120 FPS @ 1080p (1920×1080)
100 FPS @ 3M (2048x1536)
80 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
Notes
VPN Server
Maximum Connections 15
Environment & Packaging
Environment RoHS Compliant
Packaging Content
  • Main Unit X 1
  • Welcome Note X 1
  • Accessory Pack X 1
  • AC Power Cord X 1
  • RJ-45 LAN Cable X 2
Optional Accessories
  • Surveillance Device License Pack
  • Expansion Unit: DX517 X 2
  • VS360HD
  • VS960HD
General
Networking Protocols
  • CIFS
  • AFP
  • NFS
  • FTP
  • WebDAV
  • CalDAV
  • iSCSI
  • Telnet
  • SSH
  • SNMP
  • VPN (PPTP, OpenVPN, L2TP)
Windows AD Domain Integration Domain users login via SMB/NFS/AFP/FTP/File Station, LDAP integration
HDD Management
  • HDD Hibernation
  • S.M.A.R.T.
  • Dynamic Bad Sector Mapping
Supported Clients
  • Windows 7 and 10
  • Mac OS X 10.11 onward
Supported Browsers
  • Chrome
  • Firefox
  • Internet Explorer 10 onwards
  • Safari 10 onwards
  • Safari (iOS 10 onwards)
  • 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