Synology RS820+ RackStation 4-Bay Rackmount Network Storage Populated

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Synology RS820+ 4-Bay 48TB NAS w/ 4x12TB Red Pro

The Synology RS820+ RackStation 4-Bay Rackmount Network Attached NAS Storage Device is designed for businesses pursuing effective and centralized data management. It comes with four (4) drive trays and four (4) 1GbE LAN ports, and supports an optional 10GbE network or M.2 SSD adapter card (sold separately), providing fast data transmission and reducing IO latency. Powered by a 4-core processor, the RS820+ provides both high performance and scalable storage, ideal for file sharing across different platforms and data backup.

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Synology RS820+ 4-Bay 48TB NAS w/ 4x12TB Red Pro

Synology RS820+ RackStation 4-Bay Rackmount Network Storage Populated

The Synology RS820+ RackStation 4-Bay Rackmount Network Attached NAS Storage Device is designed for businesses pursuing effective and centralised data management. It comes with four (4) drive trays and four (4) 1GbE LAN ports, and supports an optional 10GbE network or M.2 SSD adapter card (sold separately), providing fast data transmission and reducing IO latency. Powered by a 4-core processor, the RS820+ provides both high performance and scalable storage, ideal for file sharing across different platforms and data backup.

 

Synology RS820+ RackStation 4-Bay Rackmount Network Storage Populated

Key Features

  • Pre-populated with 48TB of storage capacity (includes 4 x 12TB WD Red Pro HDDs).*
  • 4-core, 2.1 GHz CPU with AES-NI support. 2 GB DDR4 memory expandable up to 18 GB.
  • Outstanding 10GbE sequential performance at over 1,621 MB/s reading and 599 MB/s writing.
  • Scale up to eight (8) drives with Synology Expansion Unit RX418 (sold separately).
  • One (1) PCIe 3.0 slot for a 10GbE add-in network interface card, or an M2D18 M.2 SSD adapter card (sold separately).
  • Advanced Btrfs file system offering 65,000 system-wide snapshots and 1,024 snapshots per shared folder.
  • Synology High Availability (SHA) providing continuous services with seamless transitioning between clustered servers.

Includes WD Red Pro Hard Drives

This device includes WD Red Pro hard drives, designed specifically for SMB customers that require reliable hard drives for 8 to 16 bay medium to large-scale NAS environments. WD’s exclusive advanced NASware 3.0 technology is built into every WD Red Pro hard drive, enabling seamless integration, robust data protection and optimal performance for systems operating in the demanding NAS environment.

Hard Drive Vital Statistics

  • Model Number: WD121KFBX
  • Capacity: 12TB
  • Speed: 7200RPM
  • Cache: 256MB
  • Interface: SATA 6Gb/s
  • Form factor: 3.5 inch

High performance storage with scalability

The Synology RS820+ is a 1U rackmount 4-bay network-attached storage solution designed for businesses requiring effective and centralised data management. It is equipped with a 4-core processor and 2 GB DDR4 memory, expandable up to 18 GB. The PCIe 3.0 slot supports an optional 10GbE add-in network interface card, or a M2D18 M.2 SSD adapter card (sold separately, see accessories tab), where the M.2 NVMe/SATA SSD cache can be used to boost system random IOPS.

With Link Aggregation enabled in a 10GbE environment, RS820+ delivers high sequential throughput at over 1,621 MB/s reading and 599 MB/s writing. Storage capacity of RS820+ can be further expanded with one (1) optional Synology Expansion Unit RX418 (sold separately, see accessories tab), providing a raw capacity of up 128 TB with eight (8) drives in total.

Ultimate backup solution

The RS820+ integrates various backup applications to safeguard your important data on any device with an intuitive user interface and durable storage technologies.

  • Workstation/Server/Virtual Machine/SaaS backup
    Active Backup for Business centralises backup tasks for virtual machines, Windows PC, servers, and rsync/SMB file servers and offers various recovery options to ensure lowest RTO. Active Backup for Office 365/G Suite is an on-premises backup solution for public clouds with a centralised dashboard, optimising storage efficiency through the single instancing and block-level deduplication technology.
  • NAS backup
    Hyper Backup comprehensively backs up your data to a local shared folder, an external device, another Synology NAS, an rsync server, or Synology public cloud service, Synology C2 Backup, to ensure data safety and availability can be achieved when a disaster happens.
  • Computer backup
    Synology Drive Client backs up your Windows, Mac, and Linux desktop devices to safeguard important computer files. The RS820+ is also compatible with Time Machine, allowing you to effortlessly back up your Mac.

Btrfs: next generation storage efficiency

The RS820+ introduces Btrfs file system, bringing the most advanced storage technologies to meet the management needs of modern businesses.

  • Advanced snapshot technology provides schedulable and near-instantaneous data protection of share folders and iSCSI LUNs.
  • File and folder level data restoration saves time for users who wish to restore only a specific file or folder.
  • Flexible Shared Folder and User Quota System provide comprehensive quota control on all user accounts and shared folders.
  • File self-healing allows Btrfs file system to auto-detect corrupted files with mirrored metadata, and to recover broken data using the supported RAID type of volumes, including RAID1, 5, 6, and 10.

Reliability, availability, and disaster recovery

System reliability is critical for business everywhere. The RS820+ responds to these concerns with the below features:

  • Synology High Availability ensures seamless transitioning between clustered servers in unexpected disasters and ensures that your services remain online.
  • Snapshot Replication provides schedulable, near-instantaneous data protection, ensuring that your business documents in shared folders, virtual machines in iSCSI LUNs, or dockerised application data remain safe and available in a disaster.
  • High reliability system design, including fan-less CPU heat sink and passive cooling technology, prevents single points of failure.
  • Optional warranty upgrade is available.

Specifications

CPU

CPU Model

  • Intel Atom C3538

CPU Architecture

  • 64-bit

CPU Frequency

  • Quad Core 2.1 GHz

Hardware Encryption Engine (AES-NI)

  • Yes

Memory

System Memory

  • 2 GB DDR4

Total Memory Slots

  • 1

Memory Expandable up to

  • 18 GB (2GB + 16 GB)

Note:

  • 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.
  • 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.
  • This model does not support the ECC feature, regardless of whether the expansion memory is ECC or non-ECC.

Storage

Drive Bays

  • 4
    • Pre-populated with 48TB of storage capacity (includes 4 x 12TB WD Red Pro HDDs)

Maximum Drive Bays with Expansion Unit

  • 8

Compatible Drive Type

  • 3.5″ SATA HDD
  • 2.5″ SATA HDD
  • 2.5″ SATA SSD

Maximum Internal Raw Capacity

  • 64 TB (16 TB drive x 4) (Capacity may vary by RAID types)

Maximum Raw Capacity with Expansion Units

  • 128 TB (64 TB + 16 TB drive x 4) (Capacity may vary by RAID types)

Maximum Single Volume Size

  • 108 TB

Hot Swappable Drive

  • Yes

Note:

  • “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 utilise capacities over the maximum single volume size as long as each volume created is below the limit.
  • 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 3.0 Port

  • 2

eSATA Port

  • 1

PCIe

PCIe Expansion

  • 1 x Gen3 x8 slot (black, x4 link)

Add-In-Card Support

  • PCIe Network Interface Card
  • M2D18 – Dual M.2 SATA/NVMe SSD adapter card for SSD cache
    • Note: Add-in cards sold separately

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

Form Factor (RU)

  • 1U

Size (Height x Width x Depth)

  • 44 mm x 480 mm x 492.6 mm

Weight

  • 6.4 kg

Rack Installation Support

  • 4-post 19″ rack (Synology Rail Kit – RKM114/RKS1317)
    • Note: The rail kit is sold separately

Others

System Fan

  • 40 mm x 40 mm x 3 pcs

Fan Speed Mode

  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode

Power Recovery

  • Yes

Noise Level

  • 27 dB(A)

Scheduled Power On / Off

  • Yes

Wake on LAN / WAN

  • Yes

Power Supply Unit / Adapter

  • 150 W

Redundant Power Supply

  • No

AC Input Power Voltage

  • 100 V to 240 V AC

Power Frequency

  • 50/60 Hz, Single Phase

Power Consumption

  • 37.94 W (Access)
  • 20.96 W (HDD Hibernation)

British Thermal Unit

  • 129.54 BTU/hr (Access)
  • 71.57 BTU/hr (HDD Hibernation)

Note:

  • Power consumption is measured when it’s 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 35°C (32°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

  • 3-year hardware warranty, extendable to 5-year coverage
    • Note: The warranty period starts from the purchase date as stated on your purchase receipt.

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

  • 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 an HDD

  • Synology Hybrid RAID
  • JBOD
  • RAID 5
  • RAID 6 (with Expansion Unit)

Global Hot Spare Supported RAID Type

  • Synology Hybrid RAID
  • RAID 1
  • RAID 5
  • RAID 6 (with Expansion Unit)
  • RAID 10 (with Expansion Unit)

File Services

File Protocol

  • CIFS/AFP/NFS/FTP/WebDAV

Maximum Concurrent CIFS/AFP/FTP Connections

  • 500

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

  • 8

High Availability

Synology High Availability

  • Yes

Log Centre

Syslog Events per Second

  • 800

Virtualisation

VMware vSphere 6 with VAAI

  • Yes

Windows Server 2016

  • Yes

OpenStack

  • Yes

General Specifications

Networking Protocols

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

Supported Browsers

  • Chrome
  • Firefox
  • Edge
  • 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
  • Russian
  • Polski
  • Magyar
  • Português do Brasil
  • Português Europeu
  • Türkçe
  • Ceský
  • Thai
  • Japanese
  • Korean
  • Chinese (Traditional and Simplified)

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, sold separately )

Maximum Number of Concurrent Users

  • 150

Maximum Server Performance

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

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.
  • 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, sold separately)

  • 40 (including 2 Free Licence)

Total FPS (H.264)

  • 1200 FPS @ 720p (1280×720)
  • 800 FPS @ 1080p (1920×1080)
  • 340 FPS @ 3M (2048×1536)
  • 240 FPS @ 5M (2591×1944)
  • 120 FPS @ 4K (3840×2160)

Total FPS (H.265)

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

Total FPS (MJPEG)

  • 380 FPS @ 720p (1280×720)
  • 250 FPS @ 1080p (1920×1080)
  • 190 FPS @ 3M (2048×1536)
  • 140 FPS @ 5M (2591×1944)

Note:

  • 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.

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

Video Transcoding

  • Group 1 – Type 1

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

  • 4

Recommended Virtual DSM Number (Licences required, sold separately)

  • 4 (including 1 Free Licence)

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

Packaging Content

  • 1 x Synology RS820+ Enclosure
  • 4 x WD Red Pro HDD
  • 1 x Accessory Pack
  • 1 x AC Power Cord
  • 1 x Quick Installation Guide

Standard Warranty: 3-Years

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