Hardware Specifications
CPU
CPU Model Intel Xeon D-1521
CPU Architecture 64-bit
CPU Frequency Quad Core 2.4 (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 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 144 TB (12 TB drive x 12) (Capacity may vary by RAID types)
Maximum Raw Capacity with Expansion Units 432 TB (144 TB + 12 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
External Ports
RJ-45 1GbE LAN Port 4 (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 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) 88 mm x 430.5 mm x 692 mm
Weight 14.5 kg
Others
System Fan 80 mm x 80 mm x 4 pcs
Fan Speed Mode
Full-Speed Mode
Cool Mode
Quiet Mode
Easy Replacement System Fan
Power Recovery
Noise Level* 50.2 dB(A)
Scheduled Power On/Off
Wake on LAN/WAN
Power Supply Unit / Adapter 500W
AC Input Power Voltage 100V to 240V AC
Power Frequency 50/60 Hz, Single Phase
Power Consumption* 142.76 W (Access)
55.05 W (HDD Hibernation)
British Thermal Unit 487.12 BTU/hr (Access)
187.84 BTU/hr (HDD Hibernation)
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
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 16
Maximum Concurrent CIFS/AFP/FTP Connections 2000
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 (learn more about the complete add-on package list)
Antivirus by McAfee (Trial)
Central Management System
Chat
Maximum Users 4000
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 3,000,000
Maximum Number of Concurrent Connections for PC Clients 1800
Notes
The Btrfs file system was used for the purpose of testing.
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.
The maximum number of hosted files refers to the maximum number of files that can be indexed and hosted by the Drive service.
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 5 (Licenses required for additional accounts)
Recommended MailPlus Client Number Up to 400 (Btrfs) / 450 (EXT4)
Maximum Server Performance 2,621,000 (Btrfs) / 2,412,000 (EXT4) emails per day, approx. 80 GB (Btrfs) / 73.6 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
Moments
Facial recognition
Subject recognition
Office
Maximum Users 2800
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 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)
2100 FPS @ 1080p (1920×1080)
1500 FPS @ 3M (2048x1536)
900 FPS @ 5M (2591x1944)
550 FPS @ 4K (3840x2160)
Total FPS (H.265)* 2250 FPS @ 720p (1280x720)
2250 FPS @ 1080p (1920×1080)
2250 FPS @ 3M (2048x1536)
1500 FPS @ 5M (2591x1944)
900 FPS @ 4K (3840x2160)
Total FPS (MJPEG)* 750 FPS @ 720p (1280x720)
375 FPS @ 1080p (1920×1080)
250 FPS @ 3M (2048x1536)
180 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 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
Maximum Virtual DSM Number (Licenses required) 8 (including 1 Free License) (Learn more)
Notes Virtual Machine Manager is not supported on hosts running Synology High Availability.
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
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 E10G15-F1
Synology Ethernet Adapter E10G17-F2

Synology RackStation RS3618xs is a reliable, superior-performance network-attached storage solution for large-scale enterprises with demanding business applications. RS3618xs simplifies data management, optimizes virtualization environments, and rapidly expands storage capacity with minimal time investment in setup and maintenance. Synology RS3618xs is backed with 5-year warranty.


Specification:

•CPU Frequency: Intel Xeon D-1521 quad-core 2.4Ghz,Turbo boost up to 2.7Ghz
•Floating Point
•Memory: DDR4 8GB ECC RAM(Expandable, up to 64GB
•Internal HDD/SSD: 3.5" or 2.5" SATA(II) x12, SSD cache x2(Hard drive not included)
•Max Internal Capacity: 120TB (12x 10TB HDD) (Capacity may vary by RAID types)
•Hot Swappable HDD
•External HDD Interface: USB 3.0 X 2, Expansion Port x2
•Size (HxWxD): 88x430.5x692mm
•Weight: 14.5Kg
•LAN: Gigabit x 4 supports 2Xoptional dual-port 10GbE add-on card
•Link Aggregation
•Wake on LAN/WAN
•System Fan: 80x80mm x4
•Easy Replacement System Fan
•Wireless Support (dongle)
•Noise Level: 54.6 dB(A)
•Power Recovery
•AC Input Power Voltage: 100V-240V AC
•Power Frequency: 50/60 Hz, Single Phase
•Power Consumption: 144W (Access); 96W (HDD Hibernation)
•Operating Temperature: 5°C-35°C
•Storage Temperature: -10°C-70°C
•Relative Humidity: 5%-95% RH
•Maximum Operating Altitude: 6,500 feet