SYNOLOGY RS4017xs+ 16-Bay (up to 40 Bays 400TB) SCALABLE NAS RACKSTATION

  • 3U chassis and 16 drive trays design to provide high storage density
  • Ultra-high performance of over 4,900 MB/s sequential read throughput and 690,000 sequential read IOPS
  • Intel Xeon D-1541 8-core CPU and 8GB (up to 64GB) DDR4 ECC UDIMM
  • Dual 10GBase-T ports and optional 10GbE NICs support, providing up to 6 x 10GbE ports for maximum performance throughput
  • Scale up to 40 drives with 2 x Synology RX1217/RX1217RP

Description

Hardware Specifications
CPU
CPU Model Intel Xeon D-1541
CPU Architecture 64-bit
CPU Frequency 8-Core 2.1 (base) / 2.7 (turbo) GHz
Hardware Encryption Engine (AES-NI)  √
Memory
System Memory 8 GB DDR4 ECC UDIMM
Memory Module Pre-installed 8GB (1 x 8GB)
Total Memory Slots 4
Memory Expandable up to 64 GB (16 GB x 4)
Storage
Drive Bays 16
Maximum Drive Bays with Expansion Unit 40
Compatible Drive Type* (See all supported drives)
  • 3.5″ SATA HDD
  • 2.5″ SATA HDD
  • 2.5″ SATA SSD
Maximum Internal Raw Capacity 224 TB (14 TB drive x 16) (Capacity may vary by RAID types)
Maximum Raw Capacity with Expansion Units 560 TB (224 TB + 14 TB drive x 24) (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.
  • 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 or 200TB if upgraded to 32GB RAM or more.
External Ports
RJ-45 1GbE LAN Port 4 (with Link Aggregation / Failover support)
RJ-45 10GbE LAN Port 2 (with Link Aggregation / Failover support)
USB 3.0 Port 2
Expansion Port 2
PCIe
PCIe Expansion 2 x Gen3 x8 slots (x8 link)
Add-in-card support
  • M2D18 – Dual M.2 SATA/NVMe SSD adapter card for SSD cache
  • PCIe Network Interface Card (Learn more)
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) 132.3 mm x 482 mm x 656.5 mm
Weight 17.4 kg
Others
System Fan 80 mm x 80 mm x 3 pcs
Fan Speed Mode
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
Easy Replacement System Fan  √
Power Recovery  √
Noise Level* 44.7 dB(A)
Scheduled Power On/Off  √
Wake on LAN/WAN  √
Power Supply Unit / Adapter 2 x 800W
AC Input Power Voltage 100V to 240V AC
Power Frequency 50/60 Hz, Single Phase
Power Consumption* 136.4 W (Access)
69.2 W (HDD Hibernation)
British Thermal Unit 465.7 BTU/hr (Access)
236.3 BTU/hr (HDD Hibernation)
Redundant Power Supply (for xs+ and RP model)  √
Environment Temperature
Operating Temperature 5°C to 35°C (40°F to 95°F)
Storage Temperature -20°C to 60°C (-5°F to 140°F)
Relative Humidity 5% to 95% RH
Certification
  • EAC
  • VCCI
  • CCC
  • RCM
  • KC
  • FCC
  • CE
  • BSMI
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 ( See more )
Storage Management
Maximum Internal Volume Number 1024
Maximum iSCSI Target Number 256
Maximum iSCSI LUN 512
iSCSI LUN Clone/Snapshot, Windows ODX  √
SSD Read/Write Cache (White Paper)  √
SSD TRIM  √
RAID Group  √
Supported RAID Type
  • RAID F1
  • 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 F1
  • RAID 1
  • RAID 5
  • RAID 6
Volume Expansion by Adding a HDD
  • RAID F1
  • RAID 5
  • RAID 6
  • JBOD
Global Hot Spare Supported RAID Type
  • RAID F1
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
File Sharing Capacity
Maximum Local User Accounts 16000
Maximum Local Groups 512
Maximum Shared Folder 512
Maximum Shared Folder Sync Tasks 32
Maximum Concurrent CIFS/AFP/FTP Connections 2000
Maximum Concurrent CIFS/AFP/FTP Connections (with RAM expansion) 10000
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  √
Windows Server 2016  √
Citrix Ready  √
OpenStack  √
Add-on Packages (learn more about the complete add-on package list)
Antivirus by McAfee (Trial)  √
Central Management System  √
Chat  √
Maximum Users 6000
Notes
  • The number of concurrent HTTP connections for Chat was configured to the maximum.
  • CPU and RAM usage were both under 80% when the number of maximum users was reached.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
Cloud Station Server  √
Maximum Number of Concurrently Connected Devices 2000
Maximum Number of Concurrently Connected Devices (with RAM expansion) 10000
Maximum Number of Hosted Files (btrfs) 3,000,000
Maximum Number of Hosted Files (ext4) 3,000,000
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.
Document Viewer  √
Download Station  √
Maximum Concurrent Download Tasks 80
Drive  √
Maximum Number of Hosted Files 5,000,000
Maximum Number of Concurrent Connections for PC Clients 2,000
Notes
  • The Btrfs file system was used for the purpose of testing.
  • The maximum number of hosted files refers to the maximum number of files that can be indexed and hosted by the Drive service.
  • The maximum number of concurrent connections refers to the maximum number of connections that can be maintained when the maximum number of hosted files was reached.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • Non-encrypted shared folders were used during the aforementioned testing.
exFAT Access (optional)  √
MailPlus / MailPlus Server  √
Free Email Accounts (Licenses required for additional accounts)
Maximum number of concurrent users Up to 1100
Maximum Server Performance 4,312,000 emails per day, approx. 131GB
Notes
  • The CPU and RAM usage were both under 80% when testing the maximum number of concurrent users.
  • 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  √
Moments  √
Facial recognition  √
Subject recognition  √
Office  √
Maximum Users 2900
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.
  • 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 of system snapshots 65536
Surveillance Station  √
Maximum IP cam (Licenses required) 90 (including 2 Free License) (See All Supported IP Cameras)
Total FPS (H.264)* 2700 FPS @ 720p (1280×720)
2250 FPS @ 1080p (1920×1080)
900 FPS @ 3M (2048×1536)
800 FPS @ 5M (2591×1944)
440 FPS @ 4K (3840×2160)
Total FPS (H.265)* 2700 FPS @ 720p (1280×720)
2700 FPS @ 1080p (1920×1080)
2340 FPS @ 3M (2048×1536)
1260 FPS @ 5M (2591×1944)
800 FPS @ 4K (3840×2160)
Total FPS (MJPEG)* 1200 FPS @ 720p (1280×720)
600 FPS @ 1080p (1920×1080)
350 FPS @ 3M (2048×1536)
220 FPS @ 5M (2591×1944)
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 1 (See more)
Maximum Transcoding Channel Number 1 channel, 30 FPS @ 1080p(1920×1080), H.264 (AVC)/MPEG-4 Part 2 (XVID, DIVX5)/MPEG-2/VC-1
Virtual Machine Manager  √
Recommended Virtual Machine Instances 16 (Learn more)
Recommended Virtual DSM Number (Licenses required) 16 (including 1 Free License)
Notes
  • Virtual Machine Manager is not supported on hosts running Synology High Availability. 
  • The specifications vary depending on system configuration and memory size.
VPN Server  √
Maximum Connections 40
Environment & Packaging
Environment RoHS Compliant
Packaging Content
  • Main Unit X 1
  • Accessory Pack X 1
  • AC Power Cord X 2
  • Quick Installation Guide X 1
Optional Accessories
  • Surveillance Device License Pack
  • RAMEC2133DDR4-8G DDR4 ECC UDIMM
  • RAMEC2133DDR4-16G DDR4 ECC UDIMM
  • Expansion Unit: RX1217/RX1217RP X 2
  • VS360HD
  • VS960HD
  • Synology RKS1317 – Rail Kit Sliding
  • Synology Ethernet Adapter E10G18-T1
  • Synology Ethernet Adapter E10G18-T2
  • Synology Ethernet Adapter E10G17-F2
  • Synology M2D18 M.2 SSD adapter card

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