Synology DiskStation DS218+ 2-Bay NAS Enclosure Dual Core 2.0GHz No HDD Owner’s Manual

DiskStation DS218+

1. Status indicator
2. LAN indicator
3. Drive status indicator
4. USB 3.0 port
5. USB copy button
6. Power button and indicator
7. Fan
8. USB 3.0 port
9. Reset button
10. eSATA port
11. 1GbE RJ-45 port
12. Kensington Security Slot 13
13. Power port

Compact yet powerful storage solution

Equipped with a dual-core processor and AES-NI hardware encryption engine, DS218+ delivers exceptional file transfer speeds. Supporting real-time 4K video streaming, DS218+ is ideal not only for protecting critical data but for storing ultra-high definition media contents as well.

transcoding

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 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 accelerates data recovery, providing more flexibility for businesses
Automatic file self-healing detects and recovers corrupted files without user intervention

Learn more about the benefits of using Btrfs

4K Multimedia Server

Access and stream your 4K media content anytime and anywhere.
DS218+ supports 4K H.264/H.265 online transcoding via Video Station and DS video, allowing 4K videos to be converted and played on the fly on other computers, smartphones, and media players that originally do not support Ultra HD formats. Learn more
Synchronize files across your devices
Cloud Station Suite provides real-time data synchronization across all your devices and other Synology NAS. “Intelliversioning” keeps the most important file versions to better utilize storage space. Learn more

Digital asset protection

Powered by Synology DiskStation Manager (DSM), Synology NAS offers advanced security measures to protect against sudden data loss and potential security holes.
Learn more

Security Advisor
Analyzes system settings, password strength, network preferences, and removes any possible malware.
AppArmor
A kernel-level enhancement that blocks malicious programs from accessing unauthorized system resources.
AES 256-bit encryption
Encrypt shared folders and network data transmission to keep data from unauthorized access.
2-step verification
Prevent others from logging in to your DSM by generating a one-time password (OTP) on your mobile device.
Trust Level
Customize the trust level in Package Center to avoid installing packages from untrusted sources, safeguarding your NAS from unknown or tampered package files.

Easy file access with Quick Connect

Access files on your Synology NAS over the Internet without the hassle of setting up port forwarding rules, DDNS, or other complicated network settings. QuickConnect allows you to connect via a secure, customizable address, so that you can instantly access media and work files on any Internet -connected device with no additional charge.

DiskStation DS218+
All-around storage solution optimized to safeguard your data

Hardware Specifications

Hardware Specifications

CPU
CPU Model| Intel Celeron J3355
CPU Architecture| 64-bit
CPU Frequency| Dual Core 2.0 burst up to 2.5 GHz
Hardware Encryption Engine (AES-NI)|
Hardware Transcoding Engine| H.264 (AVC), H.265 (HEVC), MPEG-2 and VC-1; maximum resolution: 4K (4096 x 2160); maximum frame rate per second (FPS): 30
Memory|
System Memory| 2 GB DDR3L
Memory Module Pre-installed| 2GB (1 x 2GB)
Total Memory Slots| 2
Memory Expandable up to| 6 GB (2 GB + 4 GB)
Storage|
Drive Bays| 2
Compatible Drive Type*

(See all supported drives)

| 3.5″ SATA HDD

2.5″ SATA HDD

2.5″ SATA SSD

Maximum Internal Raw Capacity| 24 TB (12 TB drive x 2) (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.
•  The maximum single volume size is not directly related to the maximum raw capacity. (Learn more)
•  Expansion of the internal volume is only supported if the combined single volume size does not exceed the maximum limit of 108TB.
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External Ports
RJ-45 1GbE LAN Port| 1
USB 3.0 Port| 3
eSATA Port| 1
Copy Button|
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)| 165 mm x 108 mm x 232.2 mm
Weight| 1.30 kg
Others

System Fan| 92 mm x 92 mm x 1 pcs
Fan Speed Mode| • Full-Speed Mode
• Cool Mode
• Quiet Mode
Brightness adjustable front LED indicators|
Power Recovery|
Noise Level| 19.3 dB(A)
Scheduled Power On/Off|
Wake on LAN/WAN|
Power Supply Unit / Adapter| 60W
AC Input Power Voltage| 100V to 240V AC
Power Frequency| 50/60 Hz, Single Phase
Power Consumption| 17.23 W (Access)
5.4 W (HDD Hibernation)
British Thermal Unit| 58.79 BTU/hr (Access)
18.43 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| • EAC  •FCC
• VCCI •CE
• CCC •BSMI
• RCM  •KC
Warranty| 2 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); T emperature: 24.25-25.75˚C; Humidity: 58.2-61.8%
DSM Specifications

Networking Protocols

| • CIFS
• AFP
• NFS
• FTP
• WebDAV
• CalDAV
• iSCSI
• Telnet
• SSH
• SNMP
• VPN (PPTP, OpenVPN, L2TP)
Windows AD Domain Integration| Domain users login via SMB/NFS/AFP/FTP/ File Station, LDAP integration
HDD Management| • HDD Hibernation
• S.M.A.R.T.
• Dynamic Bad Sector Mapping
Security| Firewall, encrypted shared folder, SMB encryption, FTP over SSL/TLS, SFTP, rsync over SSH, login auto block, Let’s Encrypt support, HTTPS (Customizable cipher suite)
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,
Storage Management
Maximum Internal Volume Number| 256
Maximum iSCSI Target Number| 128
Maximum iSCSI LUN| 256
iSCSI LUN Clone/Snapshot, Windows ODX|
SSD TRIM|
Supported RAID Type| • Synology Hybrid RAID
| • Basic
| • JBOD
| • RAID 0
| • RAID 1

RAID Migration

|

• Basic to RAID 1

Volume Expansion with Larger| • Synology Hybrid RAID
HDDs| • RAID 1
Volume Expansion by Adding a HDD| • Synology Hybrid RAID
File Sharing Capacity
Maximum Local User Accounts| 2048
Maximum Local Groups| 256
Maximum Shared Folder| 256
Maximum Shared Folder Sync Tasks| 4
Maximum Concurrent CIFS/AFP/FTP

Connections

|

500

Maximum Concurrent CIFS/AFP/FTP Connections (with RAM expansion)|

1500

Windows Access Control List (ACL) Integration|
NFS Kerberos Authentication|
Log Center|
Syslog Events per Second| 400
Add-on Packages (learn more about the complete add-on package list)

Antivirus by McAfee (Trial)|
Central Management System|
Chat|
Maximum Users| 1000
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|

500

Concurrently Connected Devices
Maximum Number of Concurrently|
Connected Devices|
(with RAM expansion)| 1500
Maximum Number of Hosted Files (btrfs)|

1,000,000

Maximum Number of| 1,000,000
Hosted Files (ext4)
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| 500,000
Maximum Number of Concurrent| ****
Connections for PC Clients| 450
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

Recommended

| 5 (Licenses required for additional accounts)
MailPlus Client Number Maximum Server| Up to 45 (Btrfs) / 45 (ext4)
Performance| 181,000 (Btrfs) / 194,000 (ext4) emails per day,

approx. 5.5 GB (Btrfs) / 5.9 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 Notes| 400

• 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 Snapshot Replication

Maximum Snapshots per|
Shared Folder| 1024
Maximum of system snapshots| 65536
Surveillance Station|
Maximum IP cam (Licenses required)| 25 (including 2 Free License) (See All Supported IP Cameras)
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Total FPS (H.264)| 750 FPS @ 720p (1280×720)
600 FPS @ 1080p (1920×1080)
350 FPS @ 3M (2048×1536)
250 FPS @ 5M (2591×1944)
120 FPS @ 4K (3840×2160)
Total FPS (H.265)| 750 FPS @ 720p (1280×720)
750 FPS @ 1080p (1920×1080)
450 FPS @ 3M (2048×1536)
250 FPS @ 5M (2591×1944)
200 FPS @ 4K (3840×2160)
Total FPS (MJPEG)*| 450 FPS @ 720p (1280×720)
250 FPS @ 1080p (1920×1080)
160 FPS @ 3M (2048×1536)
130 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| 4K Group 1 (See more)
Maximum Transcoding Channel Number| 2 channel, 30 FPS @ 4K (4096 x 2160), H.264 (AVC)/H.265 (HEVC) or 2 channel, 30 FPS @ 1080p (1920×1080), H.264 (AVC)/H.265 (HEVC)/MPEG-2/VC-1
Virtual Machine Manager|
Recommended Virtual Machine Instances| 2 (Learn more)
Recommended Virtual DSM Number (Licenses required)| 2 (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| 20
Environment & Packaging
Environment| RoHS Compliant
Packaging Content| • Main Unit X 1
• Accessory Pack X 1
• AC Power Adapter X 1
• AC Power Cord X 1
• RJ-45 LAN Cable X 1
• Quick Installation Guide X 1
Optional Accessories| • Surveillance Device License Pack
• D3NS1866L-4G DDR3 non-ECC SO-DIMM
• VS360HD
• VS960HD

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