DiskStation DS1517+
High performance NAS optimized for encryption and intensive tasks

Overview:

Synology DiskStation DS1517+ features a quad-core processor with AES-NI hardware encryption engine, providing outstanding performance even with encryption. Supercharge your storage with the optional M.2 SSD adapter card for dual SSD cache drives. DS1517+ is the ideal storage solution for centralizing data backups, protecting critical assets, and sharing files across different platforms. Synology DS1517+ is backed with Synology’s 3-year limited warranty.

• Quad-core 5-bay NAS with AES-NI support, with over 1,165 MB/s reading and 527 MB/s writing performance
• PCIe slot for optional 10GbE add-on card. Four 1GbE (RJ-45) ports with failover and Link Aggregation support.
• Optional M2D17 adapter card for dual M.2 SATA SSDs for cache
• Two memory configurations: 2GB & 8GB with easily upgradable dualchannel design, up to 16GB
• Advanced Btrfs file system offering 65,000 system-wide snapshots and 1,024 snapshots per shared folder
• Scale up to 15 drives with two DX517 expansion units

High Performance & Easy-to-Scale

Synology DS1517+ is a 5-bay network attached storage solution with great performance and scalability. DS1517+ is equipped with an Intel quad-core 2.4 GHz processor and two memory options: 2GB or 8GB, with the flexibility to expand up to 16GB for even more intensive workloads. With dual-channel memory design, it provides outstanding sequential throughput at over 1,165 MB/s reading and 527 MB/s writing under a RAID 5 configuration with 10GbE Link Aggregation enabled.

DS1517+ supports up to 15 drives with two Synology DX517 Expansion Unit attached, allowing you to start small and easily to scale up on demand. The PCIe slot supports the optional PCIe M.2 SSD adapter card M2D173 for dual M.2 SATA SSD slots to be used as SSD cache for greatly enhanced storage performance without using the 3.5" drive bays. The PCIe slot can also be used to upgrade the DS1517+ with 10GbE network add-in-cards.

Virtualization Ready

DS1517+ provides seamless storage solutions for virtualization environments, including VMware, Citrix, Hyper-V, and OpenStack. With VMware vSphere 6 and VAAI integration certified, DS1517+ 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, DS1517+ 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, DS1517+ can be used as a block-based storage component for servers complying with the Cinder API.

Comprehensive Business Applications

Powered by the innovative Synology DiskStation Manager (DSM), DS1517+ comes fully-equipped with applications and features designed specifically for large-scale business:

• 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 DS1517+ to fit seamlessly into current infrastructure.
• Application privileges controls access to applications and packages based on each individual account, user group, or IP address.
• MailPlus allows your business to set up a secure, reliable, and private mail server while giving your employees a modern mail client for receiving and sending messages
• Powerful collaboration suite with Synology Office, Calendar and Chat for secure and high-performance private communications and content organization that your organization can easily manage and control.

Robust Scalability

Management of the storage space on DS1517+ is simple and flexible. Multiple Volumes on RAID allows you to create more than one volume on a RAID structure, providing a flexible and efficient way to manage your storage across all available hard drives. When the need for more space arises, the volume can be easily expanded without any service disruption. DS1517+ provides the ability to seamlessly expand a single volume up to 108 TB on the fly. When the storage capacity of DS1517+ nears its limit, expansion is easily accomplished with up to two Synology Expansion Unit DX517 to support up to 15 SATA drives.

Reliability & Availability

System reliability is of paramount importance to businesses which depend upon their commercial servers every day. DS1517+ responds to these concerns with wide-ranging availability and redundancy features:

• Synology High Availability ensures seamless transition between clustered servers in the event of server failure with minimal impact on applications.
• Redundant system fans and network ports with failover support ensure continual service uptime.
• Optional 5-year warranty is available in select regions.

Features:

Centralized storage solution with outstanding performance

Synology DiskStation DS1517+ is a 5-bay NAS powered by a quad-core CPU with AES-NI hardware encryption engine. Coming with quad 1GbE LAN ports, it can be installed with a 10GbE network interface card (NIC) or a dual M.2 SSD adapter card, thereby enhancing network speeds or boosting performance with SSD cache.

Supercharge your storage with speedy performance

Equipped with dual-channel memory and a PCIe slot, DS1517+ supports installing the dual M.2 SSD adapter card, M2D17, or the 10GbE NIC, for high-IOPS system cache and ultra-fast data transmission respectively.

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

 

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.

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. USB 3.0 port
8. Fan
9. Power port
10. Kensington Security Slot
11. 1GbE RJ-45 port
12. eSATA port
13. PCIe 2.0 slot
14. Reset button
15. USB 3.0 port

Hardware Specifications:
CPU
CPU Model	Intel Atom C2538
CPU Architecture	64-bit
CPU Frequency	Quad Core 2.4 GHz
Hardware Encryption Engine
Memory
System Memory	2/8 GB DDR3
Memory Module Pre-installed	2GB (1 x 2GB) / 8GB (2 x 4GB)
Total Memory Slots	2
Memory Expandable up to	16 GB (8 GB x 2)
Storage
Drive Bay(s)	5
Maximum Drive Bays with Expansion Unit	15
Compatible Drive Type	3.5" SATA HDD 2.5" SATA HDD 2.5" SATA SSD
Maximum Internal Raw Capacity	50 TB (10 TB drive x 5) (Capacity may vary by RAID types)
Maximum Raw Capacity with Expansion Units	150 TB (10 TB drive x 15) (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. 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	4
eSATA Port	2
PCIe
PCIe Expansion	1 x Gen2 x8 slot (x4 link)
Add-in-card support	M2D17 - Dual M.2 SSD adapter card for SSD cache PCIe Network Interface Card
Notes	DS1517+ with M2D17 can only support M.2 SATA SSD. M.2 NVMe/AHCI PCIe SSD is not supported.
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)	166 mm x 250 mm x 243 mm
Weight	4.46 kg
Others
System Fan	80 mm x 80 mm x 2 pcs
Fan Speed Mode	Cool Mode Quiet Mode
Brightness adjustable front LED indicators
Power Recovery
Noise Level	26.2 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	42.1 W (Access)  23.1 W (HDD Hibernation)
British Thermal Unit	143.7 BTU/hr (Access)  78.9 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	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+, exFAT4
Supported RAID type	Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10
Storage management	Maximum single volume size: 108 TB Maximum internal volume: 512 Maximum iSCSI target: 32 Maximum iSCSI LUN: 256 iSCSI LUN clone/snapshot support
File sharing capability	Maximum user account: 2048 Maximum group: 256 Maximum shared folder: 512 Maximum concurrent CIFS / AFP / FTP connection: 512 (2GB) / 2,048 (8GB)
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, Surveillance Station Client, Evidence Integrity Authenticator, Photo Station Uploader, Snapshot Manager for VMware, Snapshot Manager for Windows, NFS Plug-in for VMware VAAI
Supported client	Windows 7 and 10, Mac OS X 10.10 onwards
Supported browser	Chrome, Firefox, Internet Explorer: 9 onwards, Safari 8 onwards, Safari (iOS 7 onwards on iPad), Chrome (Android 4.0 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
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: 8
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
Cloud Station	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: 512
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 camera: 40 (total of 1,200 FPS at 720p, H.264) (Includes two free camera licenses; additional cameras require the purchasing of additional licenses)
VPN Server	Maximum connection: 20, supported VPN protocol: PPTP, OpenVPN, L2TP
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 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
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
iOS/Android applications	DS cloud, DS file, DS finder, DS cam, DS note, MailPlus
Windows Phone applications	DS file, DS finder
Environment & Packaging:
Environment	RoHS Compliant
Packaging Content	DS1517+ 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	16 GB (8 GB x 2) DDR3 SO-DIMM kit (RAM1600DDR3L-8GBx2) 8 GB (4 GB x 2) DDR3 SO-DIMM kit (RAM1600DDR3L-4GBx2) Synology E10G17-F2 / E10G15-F1 10Gbps Ethernet adapters Synology M2D17 M.2 SSD adapter card 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 DS1517+ supports up to two Synology DX517, sold separately.
³ DS1517+ supports dual M.2 SATA SSD through M2D17 adapter card, sold separately.
⁴ exFAT Access is purchased separately in Package Center.
⁵ 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.

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 DS1517+ Datasheet  (PDF).