RackStation RS3618xs

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RackStation RS3618xs

High performance and scalable NAS simplifies data management, optimizes virtualization environments for large scale businesses.

Features
Specs

High-speed scalable storage server

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

CPU

quad-core up to 2.7GHz

RAM options

8GB DDR4 ECC UDIMM, up to 64GB

Network

4 x 1GbE port, optional 10GbE NIC support

Scalability

Up to 36 drives with RX1217/RX1217RP

Ready for 10GbE and beyond

PCIe 3.0 slots allow for faster networking options as you expand your infrastructure. Together with the built-in quad Gigabit ports, RS3618xs offers comprehensive connectivity options for link aggregation and failover configurations.

5 year warranty

Synology's 5-year limited warranty provides hardware replacement and technical support via email and telephone services, maximizing your enterprises' return on investment.

Synology Replacement Service (SRS)

SRS provides free advance replacement units as early as the next business day in selected regions, maximizing the service uptime for your mission-critical storage and ensuring your business continuity¹. Know more about SRS.

Ultimate Backup Solution

RS3618xs integrates various backup applications to safeguard your important data on any device with an intuitive user interface and durable storage technologies.

Active Backup for Server

An agentless backup solution protects data from Windows and Linux servers through SMB and Rsync to minimize deployment and management costs.
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Hyper Backup

Comprehensively back up your data to a local shared folder, an external device, another Synology NAS, an rsync server, or a public cloud to ensure data safety.
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Desktop Backup

Safeguard your PC with Cloud Station Backup. Effortlessly back up data stored on macOS to Synology NAS with Time Machine.
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Active Backup for
Office 365/ G Suite

Protect corporate data stored on the cloud. On-premise backup solution with a centralized dashboard. Optimize storage efficiency with single instancing and block-level deduplication technology.
Office 365 G Suite

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.

Next-generation file system for better data protection

The Btrfs file system introduces advanced storage technologies and optimized snapshots to prevent data corruption and reduce maintenance overhead. While ensuring high-level data integrity, it also offers flexible, efficient data protection and recovery tools.

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

Learn more about the benefits of using Btrfs

Powered by Synology DSM

CMS

Manage multiple Synology NAS servers simultaneously on a centralized interface to increase business efficiency.

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Snapshot Replication

Provides schedulable and instantaneous data protection for shared folders and virtual machines on iSCSI LUNs in the event of disaster.

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VMM

Run various operating systems in isolated sandboxes. Seamlessly clone, restore and migrate virtual machines.

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MailPlus

Secure, reliable, and private mail server solution with an intuitive and modern mail client.

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Synology High Availability

Ensures seamless service transition between clustered servers in the event of a server failure.

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Drive

A versatile solution for file management and synchronization.

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1 Power button and indicator
2 Beep off button
3 Drive status indicator
4 Drive tray

5 PSU on/off switch
6 Power port
7 PSU fan
8 Console port

9 1GbE RJ-45 port
10 USB 3.0 port
11 Expansion port
12 PCIe 3.0 slot

13 Reset button

Notes:

Synology guarantees SRS response within the next business-day, and the actual shipping and turnover time is a "best-effort" based on replacement availability.

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	64
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
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
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 Synced Files (btrfs)	3,000,000 / single file reaction time 530 ms
Maximum Number of Synced Files (ext4)	3,000,000 / single file reaction time 229 ms
Notes	The maximum number of concurrently connected devices refers to the maximum number of devices that can remain connected at the same time. For more information on file processing capability, please refer to the reaction time for file processing. File reaction time refers to the preparation time required for other devices to start downloading a 10KByte file from a Synology NAS after the file has been added to the NAS. 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 Synced Files	3,000,000 / single file reaction time 244 ms
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 could be maintained when the maximum number of synced files was reached. File reaction time refers to the preparation time required for other devices to start downloading a 10KByte file from a Synology NAS after the file has been added to the NAS. 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
General
Networking Protocols	CIFS AFP NFS FTP WebDAV CalDAV iSCSI Telnet SSH SNMP VPN (PPTP, OpenVPN)
Windows AD Domain Integration	Domain Users login via Samba/AFP/FTP/File Station
HDD Management	HDD Hibernation S.M.A.R.T. Dynamic Bad Sector Mapping
Security	FTP over SSL/TLS IP Auto-Block Firewall Encrypted Network Backup over Rsync HTTPS Connection
Utilities	Synology Assistant
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, 日本語, 한국어, 繁體中文, 简体中文