Synology DS1621+ 6-Bay 36TB NAS w/ 6x6TB Red Plus Hard Drive Bundle(DS1621+/36TB-RPL)

CPU

CPU Model

• AMD Ryzen V1500B

CPU Architecture

• 64-bit

CPU Frequency

• 4-core 2.2 GHz

Hardware Encryption Engine (AES-NI)

• Yes

Memory

System Memory

• 4 GB DDR4 ECC SODIMM

Memory Module Pre-installed

• 4 GB (4 GB x 1)

Total Memory Slots

• 2

Maximum Memory Capacity

• 32 GB (16 GB x 2)

Notes

• Please select Synology memory modules for optimum compatibility and reliability. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion.
• Synology reserves the right to replace memory modules with the same or higher frequency based on supplier’s product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance.

Storage

Drive Bays

• 6
  • Bundled with 36TB of storage capacity (includes 6 x 6TB WD Red Plus HDDs)

Maximum Drive Bays with Expansion Unit (sold separately)

• 16 (DX517 x 2)

M.2 Drive Slots (un-populated)

• 2 (NVMe)

Compatible Drive Type

• 3.5″ SATA HDD
• 2.5″ SATA HDD
• 2.5″ SATA SSD
• M.2 2280 NVMe SSD

Maximum Single Volume Size

• 108 TB

Hot Swappable Drive

• Yes

Notes

• “Compatible drive type” indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay.
• Each internal volume (may consist of multiple drives) is expandable up to 108TB.

External Ports

RJ45 1GbE LAN Port

• 4 (with Link Aggregation / Failover support)

USB 3.2 Port

• 3

eSATA Port

• 2

PCIe

PCIe Expansion

• 1 x Gen3 x8 slot (x4 link)

File System

Internal Drives

• Btrfs
• EXT4

External Drives

• Btrfs
• EXT4
• EXT3
• FAT
• NTFS
• HFS+
• exFAT
  • Note: exFAT Access is purchased separately in Package Centre.

Appearance

Size (Height x Width x Depth)

• 166 mm x 282 mm x 243 mm

Weight

• 5.1 kg

Others

System Fan

• 92 mm x 92 mm x 2 pcs

Fan Speed Mode

• Full-Speed Mode
• Cool Mode
• Quiet Mode

Easy Replacement System Fan

• Yes

Brightness Adjustable Front LED Indicators

• Yes

Power Recovery

• Yes

Noise Level

• 25.2 dB(A)

Scheduled Power On / Off

• Yes

Wake on LAN / WAN

• Yes

Power Supply Unit / Adapter

• 250 W

AC Input Power Voltage

• 100 V to 240 V AC

Power Frequency

• 50/60 Hz, Single Phase

Power Consumption

• 51.22 W (Access)
• 25.27 W (HDD Hibernation)

British Thermal Unit

• 174.77 BTU/hr (Access)
• 86.22 BTU/hr (HDD Hibernation)

Notes

• Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s).
• Noise Level Testing Environment: Fully loaded with Seagate 2TB ST2000VN000 hard drive(s) in the idle state. Two G.R.A.S. Type 40AE microphones, each set up 1 metre away from the Synology NAS at the front and rear. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75°C; Humidity: 58.2-61.8%

Temperature

Operating Temperature

• 0°C to 40°C (32°F to 104°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

Environment

• RoHS Compliant

DSM Specifications

Storage Management

Maximum Internal Volume Number

• 64

Maximum iSCSI Target Number

• 128

Maximum iSCSI LUN

• 256

iSCSI LUN Clone/Snapshot, Windows ODX

• Yes

SSD Read / Write Cache (White Paper)

• Yes

SSD TRIM

• Yes

Supported RAID Type

• Synology Hybrid RAID
• 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

• Synology Hybrid RAID
• RAID 1
• RAID 5
• RAID 6
• RAID 10

Volume Expansion by Adding a HDD

• Synology Hybrid RAID
• JBOD
• RAID 5
• RAID 6

Global Hot Spare Supported RAID Type

• Synology Hybrid RAID
• RAID 1
• RAID 5
• RAID 6
• RAID 10

File Services

File Protocol

• CIFS/AFP/NFS/FTP/WebDAV

Maximum Concurrent CIFS/AFP/FTP Connections

• 1,000

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

• 2,000

Windows Access Control List (ACL) Integration

• Yes

NFS Kerberos Authentication

• Yes

Account & Shared Folder

Maximum Local User Accounts

• 2,048

Maximum Local Groups

• 256

Maximum Shared Folder

• 512

Maximum Shared Folder Sync Tasks

• 16

High Availability

Synology High Availability

• Yes

Log Centre

Syslog Events per Second

• 800

Virtualisation

VMware vSphere 6 with VAAI

• Yes

Windows Server 2016

• Yes

Windows Server 2019

• Yes

Citrix Ready

• Yes

OpenStack

• Yes

General Specifications

Networking Protocols

• SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV

Supported Browsers

• Google Chrome
• Firefox
• Microsoft Edge
• Internet Explorer 10 onwards
• Safari 10 onwards
• Safari (iOS 10 onwards)
• Google Chrome (Android 6.0 onwards)

Supported Language

• English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svenska, Nederlands, ???????, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Ceský,

Add-on Packages

Antivirus by McAfee (Trial)

• Yes

Central Management System

• Yes

Synology Chat

Maximum Users

• 1,500
  • Note:
  • The number of concurrent HTTP connections for Synology 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.

Document Viewer

• Yes

Download Station

Maximum Concurrent Download Tasks

• 80

exFAT Access (Optional)

• Yes

Synology MailPlus / MailPlus Server

Free Email Accounts

• 5 (Licences required for additional accounts)

Maximum Number of Concurrent Users

• 150

Maximum Server Performance

• 1,484,000 emails per day, approx. 45GB

Note:

• 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 synchronisation 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

• Yes

Moments

Facial Recognition

• Yes

Subject Recognition

• Yes

Auto Colour & Rotate

• Yes

Moments Select

• Yes

Snapshot Replication

Maximum Snapshots per Shared Folder

• 1,024

Maximum of System Snapshots

• 65,536

Surveillance Station

Maximum IP cam (Licences required)

• 40 (including 2 Free Licence)

Total FPS (H.264)

• 1200 FPS @ 720p (1280×720)
• 1050 FPS @ 1080p (1920×1080)
• 600 FPS @ 3M (2048×1536)
• 440 FPS @ 5M (2591×1944)
• 320 FPS @ 4K (3840×2160)

Total FPS (H.265)

• 1200 FPS @ 720p (1280×720)
• 1200 FPS @ 1080p (1920×1080)
• 1120 FPS @ 3M (2048×1536)
• 600 FPS @ 5M (2591×1944)
• 480 FPS @ 4K (3840×2160)

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.
• The maximum channel number also includes devices installed on Virtual DSM.
• Total FPS may be affected by other services running at the same time (e.g., archive tasks performed by Archive Vault).

Synology Drive

Recommended Number of Hosted Files

• 1,000,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above)

Recommended Number of Concurrent Sync Clients

• 550 (the number of connections that can be maintained when the recommended number of hosted files was reached)

Note:

• For tested models with expandable memory, the maximum amount of RAM was installed.
• Exceeding the limits above may result in longer response time in file operations.
• Btrfs file system and non-encrypted shared folders were used during the aforementioned testing.

Synology Office

Maximum Users

• 1,800

Note:

• 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

Video Station

• Yes

Virtual Machine Manager

Recommended Virtual Machine Instances

• 8

Recommended Virtual DSM Number (Licences required)

• 8 (including 1 Free Licence)

VPN Server

Maximum Connections

• 30

Package Contents

• 1 x DS1621+ Enclosure
• 6 x WD Red Plus HDD
• 1 x Accessory Pack
• 1 x AC Power Cord
• 2 x RJ45 LAN Cable
• 1 x Quick Installation Guide