DiskStation DS3617xs

Centralize data right on your desk
Meet the 12-bay desktop NAS that allows instant deployment with scalability up to 36 drives, delivering outstanding 2,358MB/s sequential throughput reading. DS3617xs is certified for VMware, Citrix, Hyper-V, and OpenStack, ready to bring superior agility and efficiency to businesses.

High-performance NAS server for RAM-intensive applications
Equipped with an Intel Xeon-D quad-core processor, DS3617xs delivers stunning performance with over 2,358 MB/s reading under a RAID 5 configuration with optional 10GbE and Link Aggregation enabled. Initially equipped with 16GB DDR4 ECC RAM (upgradable to 48GB), it ensures data accuracy when handling high-value data and mission-critical tasks.

Scale on demand
DS3617xs can be connected to one or two dedicated DX1215 expansion units, allowing you to expand storage capacity to up to 36 drives without disrupting service. The high-bandwidth cable ensures instant and lossless connections between the main server and the expansion units.
 
10GbE upgradability
In addition to the four built-in Gigabit ports, DS3617xs comes with a PCIe 3.0 x8 slot to support an optional 10GbE Network Interface Card (NIC), maximizing bandwidth and meeting high performance requirements for data-intensive applications.
 
Reliable redundancy mechanisms
DS3617xs comes with comprehensive redundancy mechanisms to ensure business continuity. Built-in four LAN ports with failover provides reliable redundancy in the event of unexpected network failure. The high reliability system design, including fanless CPU heat-sink and passive cooling technologies, prevents a single point of failure.
 
5 year warranty
Synology DS3617xs is backed with Synology's 5-year limited warranty. With technical support and hardware replacement service, the 5-year warranty maximizes your enterprises' return on investment.
  
Synology Replacement Service (SRS)
The Synology Replacement Service (SRS)* provides free shipment of replacement units as early as the next business day. SRS can expedite the process of replacing defective products and minimize service downtime. 
* Available in selected countries. 


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 8 GB x 2 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* (See all supported drives) 3.5" SATA HDD 2.5" SATA HDD 2.5" SATA SSD Maximum Internal Raw Capacity 120 TB (10 TB HDD x 12) (Capacity may vary by RAID types) Maximum Raw Capacity with Expansion Units 360 TB (10 TB HDD 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   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. External Ports USB 3.0 Port 2 Expansion Port 2 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 RJ-45 1GbE LAN Port 4 (with Link Aggregation / Failover support) Wake on LAN/WAN   PCIe Slot for Network Card  1 x Gen3 x8 slot (x8 link) System Fan 120 mm x 120 mm x 2 pcs Fan Speed Mode Full-Speed Mode Cool Mode Quiet Mode Easy Replacement System Fan   Wireless Support (dongle)   Power Recovery   Noise Level* 22.3 dB(A)  Scheduled Power On/Off   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 Certification FCC Class B CE Class B BSMI Class B 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 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  Storage Management Maximum Internal Volume Number 1024 Maximum iSCSI Target Number 64 Maximum iSCSI LUN 512 iSCSI LUN Clone/Snapshot, Windows ODX   RAID Group   Supported RAID Type 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 RAID 1 RAID 5 RAID 6 Volume Expansion by Adding a HDD RAID 5 RAID 6 JBOD Global Hot Spare Supported RAID Type RAID 1 RAID 5 RAID 6 RAID 10 SSD Support SSD Read/Write Cache (White Paper)   SSD TRIM   File Sharing Capacity Maximum Local User Accounts 16000 Maximum Local Groups 512 Maximum Shared Folder 512 Maximum Shared Folder Sync Tasks 16 Maximum Concurrent CIFS/AFP/FTP Connections 2048 Windows Access Control List (ACL) Integration   NFS Kerberos Authentication   High Availability Manager   Log Center   Syslog Events per Second 3000 Virtualization VMware vSphere 6 with VAAI   Windows Server 2012   Windows Server 2012 R2   Citrix Ready   OpenStack   Add-on Packages  Antivirus by McAfee (Trial)   Central Management System   Chat   Maximum Users 1600 Notes The number of concurrent HTTP connections for Chat was configured to the maximum. CPU and RAM usage were both under 80% when testing the recommended number of clients. For tested models with expandable memory, the maximum amount of RAM was installed. Cloud Station Server   Maximum Concurrent File Transfers 2000 Maximum Concurrent File Transfers (with RAM expansion) 10000 Docker DSM   Maximum Docker DSM Number (Licenses required) 35 (including 1 Free License)  Document Viewer   Download Station   Maximum Concurrent Download Tasks 80 exFAT Access (optional)   HiDrive Backup   MailPlus / MailPlus Server   Free Email Accounts 5 (Licenses required for additional accounts) Recommended MailPlus Client Number Up to 300 (Btrfs) / 400 (EXT4) Maximum Server Performance 2,248,000 (Btrfs) / 2,184,000 (EXT4) emails per day, approx. 68.8 GB (Btrfs) / 66.7 GB (EXT4) Notes The CPU and RAM usages were both under 80% when testing recommended client numbers. For tested models with expandable memory, the maximum amount of RAM was installed. Read-write SSD cache was enabled in 5-bay (and above) NAS models with 2 SSDs units installed. The performance of the mail system will slightly decrease in high-availability mode due to data synchronization between the two servers. Functions that were enabled in all of the tests above: anti-spam, anti-virus, DNSBL, greylist, content scan, full-text search (English only). Media Server   DLNA Compliance   Office   Maximum Users 1600 Maximum Simultaneous Editing Users per File 90 Notes CPU and RAM usage were both under 80% when testing the recommended number of clients. For tested models with expandable memory, the maximum amount of RAM was installed. Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM PetaSpace   Snapshot Replication   Maximum Snapshots per Shared Folder 1024 Maximum Snapshots of all Shared Folder 65536 Surveillance Station   Maximum IP cam (Licenses required) 75 (including 2 Free License) (See All Supported IP Cameras) Total FPS (H.264)* 2250 FPS @ 720p (1280x720) 
1050 FPS @ 1080p (1920×1080) 
600 FPS @ 3M (2048x1536) 
500 FPS @ 5M (2591x1944) Total FPS (MJPEG)* 900 FPS @ 720p (1280x720) 
450 FPS @ 1080p (1920×1080) 
280 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  Maximum Transcoding Channel Number 1 channel, 30 FPS @ 720p (1280x720), H.264 (AVC)/MPEG-4 Part 2 (XVID, DIVX5)/MPEG-2/VC-1 Virtual DSM Manager   VPN Server   Maximum Connections 30 Environment & Packaging Environment RoHS Compliant Packaging Content Main Unit X 1 Accessory Pack X 1 AC Power Cord X 1 RJ-45 LAN Cable X 2 Quick Installation Guide X 1 Optional Accessories Camera License Pack 16GB DDR4 ECC SO-DIMM Expansion Unit: DX1215 X 2 VS360HD Synology Ethernet Adapter E10G15-F1 Synology Ethernet Adapter E10G17-F2