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Synology
DiskStation NAS
DS1821+
8-Bay, 4x 1GbE, PCIe (4GB Synology ECC RAM)


Choose electric outlet for United States DS1821+ with UK power plug DS1821+ with EURO power plug DS1821+ with US American power plug DS1821+ with AU Australian power plug



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96TB 80TB 64TB 48TB 32TB 24TB 16TB 15.36TB 8TB 7.68TB 3.84TB

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6Gb/s SATA to 1GbE Ethernet
4GB DDR4 ECC RAM
AMD Ryzen V1500B 4-core 2.2 GHz
3yr Warranty
Synology DiskStation NAS DS1821+ 8-Bay, 4x 1GbE, PCIe (4GB Synology ECC RAM)
Synology
DiskStation NAS
DS1821+
8-Bay, 4x 1GbE, PCIe (4GB Synology ECC RAM)
Description
DiskStation DS1821+
High capacity storage and data protection for anyone

Designed for scalability and performance
The 8-bay Synology DS1821+ is aimed at IT enthusiast and SMB customers looking for a powerful and scalable storage solution, its business-grade backup solutions keep users safe and protected from potential data loss, while major improvements to compute capabilities and throughput means workloads are finished faster than ever before.

CPU - AMD Ryzen™ Quad-core 2.2 GHz Cache Acceleration - Dual M.2 2280 slots for NVMe Cache Performance - 113K 4K random read IOPS1 Scalability - Expand up to 18 drives with two DX517 expansion units
A powerhouse on all fronts
The DS1821+ can handle demanding application workloads and a greater number of concurrent users. Experience faster file indexing in Synology Drive, photo organization in Moments, and more responsive web services.1

Turbocharge and supersize it networking or for higher storage capacity.

2 x M.2 NVMe
Enable ultra-fast NVMe cache to accelerate HDD arrays by 20X or more
10GbE support
Add in faster SFP+ or RJ-45 networking to turbocharge existing workflows
Storage Expansion
Supports two DX517 expansion units for a total of 18 bays

HDD/SSDs, 10GbE network adapter cards, and expansion units are sold separately.

Ultimate file management and sharing
File Station is a web-based, fast and secure management tool built to allow easy, drag-and-drop operations without requiring any complex setup on Mac or PC. Advanced search and filtering tools allow for easy organization and file sharing. For complete compatibility, DS1821+ supports the following protocols: AFP, FTP, iSCSI, NFS, SMB, and WebDAV.

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.
     
Ultimate Backup Solution
DS1821+ integrates various backup applications into an intuitive user interface, offering durable storage technologies to safeguard your valuable data on any device.

Active Backup for Business
Centralize backup tasks for VMware, Windows, and file servers. Restore whatever you want fast and reliably when needed.
Learn more
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.
Learn more
Synology Drive
Safeguard your computer with Synology Drive Client. Effortlessly perform real-time data backups and point-in-time file recovery.
Learn more
Active Backup for
Microsoft 365 / G Suite
On-premise backup solution with a centralized dashboard. Optimize storage efficiency with single instancing and block-level deduplication technology.
Microsoft 365G Suite

Engineered for reliability, backed by Synology
DS1821+ is designed to reliably store your data and is backed by Synology's three-year hardware warranty. An optional two-year extended warranty is available in select regions for up to five years of coverage. Learn more

Powered by Synology DSM

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

Learn more
Synology MailPlus
Secure, reliable, and private mail server solution with an intuitive and modern mail client.

Learn more
Synology High Availability
Seamless transition between clustered servers in the event of a server failure to minimize the impact on applications.

Learn more
Security
Comprehensive built-in security tools are constantly updated to protect your devices against evolving threats.

Learn more
Synology Drive
A versatile solution for file management and synchronization. 

Learn more
Surveillance Station
Complete surveillance solution for recording, monitoring, and management.

Learn more
Works best with Synology solid-state drives
Engineered to handle intensive 24/7 workloads, Synology SSDs are designed to provide consistent high-performance.

SATA 2.5” SSD SAT5200 
NVMe M.2 SSD SNV3400 

Notes:
Performance figures are achieved in the Synology lab with optimized network and configuration settings. Actual performance could vary in different environments. Comparison done against prior-generation 8-bay DS1819+. For full details on the test setup, please visit the Synology performance page here.


CPU CPU Model AMD Ryzen V1500B   CPU Architecture 64-bit   CPU Frequency 4-core 2.2 GHz   Hardware Encryption Engine (AES-NI)   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 8   Maximum Drive Bays with Expansion Unit 18 (DX517 x 2)   M.2 Drive Slots 2 (NVMe)   Compatible Drive Type* (See all supported drives) 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     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 RJ-45 1GbE LAN Port 4 (with Link Aggregation / Failover support)   USB 3.0 Port 4   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*   Notes exFAT Access is purchased separately in Package Center. Appearance Size (Height x Width x Depth) 166 mm x 343 mm x 243 mm   Weight 6 kg Others System Fan 120 mm x 120 mm x 2 pcs   Fan Speed Mode Full-Speed Mode Cool Mode Quiet Mode   Easy Replacement System Fan     Brightness Adjustable Front LED Indicators     Power Recovery     Noise Level* 22.2 dB(A)   Scheduled Power On / Off     Wake on LAN / WAN     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* 59.8 W (Access)
26.18 W (HDD Hibernation)   British Thermal Unit 204.05 BTU/hr (Access)
89.33 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 meter 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 FCC CE BSMI EAC CCC KC VCCI RCM Warranty 3-year hardware warranty, extendable to 5-year coverage - EW201   Notes The warranty period starts from the purchase date as stated on your purchase receipt.  Environment RoHS Compliant Packaging Content Main Unit X 1 Accessory Pack X 1 AC Power Cord X 1 RJ-45 LAN Cable X 2 Quick Installation Guide X 1 Optional Accessories DDR4 ECC SODIMM: D4ES01-4G/D4ES01-8G/D4ECSO-2666-16G Expansion Units: DX517 2.5" SATA SSD: SAT5200 M.2 2280 NVMe SSD: SNV3400 10GbE Network Interface Card: E10G18-T2/E10G18-T1/E10G17-F2 VisualStation: VS960HD/VS360HD Surveillance Device License Pack   Notes All memory modules will operate at the maximum frequency specified by the CPU manufacturer. Notes: Model specifications are subject to change without prior notice. The figures are based on Synology internal testing. Each performance test is done individually. No other services or applications are processed at the same time. The actual performance may be lower than lab testing figure due to differences in server configuration, deployment, and the number of active operations. If usage requirements exceed the above recommended specifications, please contact us.
Specifications
Specifications

General

Stock code IBSY-1821P
Brand Synology
Series DiskStation NAS
Model DS1821+
Type 8-Bay, 4x 1GbE, PCIe (4GB Synology ECC RAM)
ROHS Y
Date added 10/11/2020

DS1821+ Spec Information

Form Factor / Drive Height 166 x 343 x 243 mm
Platter size 3.5"
Platter (alternate) 2.5"
RAM/Cache 4GB DDR4 ECC
Guarantee 3yr
Processor AMD Ryzen V1500B 4-core 2.2 GHz
CPU Mark (cpubenchmark.net) ? 5000
Total Drives 8
Total Drives (alternate) 8
RAID 0:1:5:6:SHR:

DS1821+ Spec Connections

sub- connectionI/EQuantity
M.2M.2 NVMeInternal2
SATASATA 3.5Internal8
LANRJ45 1GbEExternal4
PCIePCIe v3 x8 (x4)Internal1
USB3USB3.0External4
eSATAeSATAExternal2

Software

DS1821+ Speed

Speed/RPM 6Gb/s SATA to 1GbE Ethernet

Physical

Weight (kg) 10kg
Weight (bare) 6kg
Colour Black
Links
Reviews
Reviews & QuestionsPlease share your opinion or ask a question, about THIS product...

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Synology DiskStation NAS DS1821+ reviews


23/12/2020 | Guest | GB Flag |
Do I have to fill all the bays with drives?
You can start with any number of drives, and leave some room for future expansion. We recommend that you use exactly the same make and model of drive when expanding your RAID.



Would you like to tell us about a lower price for DS1821+?
Link to a DS1821+ review page
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Synology DiskStation NAS DS1821+ 8-Bay, 4x 1GbE, PCIe (4GB Synology ECC RAM)
ibsy-1821p-back.jpg
ibsy-1821p.jpg

Stock codeIBSY-1821P
Quick code73980
Choose electric outlet for United States DS1821+ with UK power plug DS1821+ with EURO power plug DS1821+ with US American power plug DS1821+ with AU Australian power plug
Your local power plug included on request



Synology
DiskStation NAS
DS1821+
8-Bay, 4x 1GbE, PCIe (4GB Synology ECC RAM)


Customise

DS1821+ review star 0DS1821+ review star 1DS1821+ review star 2DS1821+ review star 3DS1821+ review star 4 5 Write a review | Questions


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£810.00£972.00
ex.VAT $1,110.12
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Description

Synology DiskStation NAS DS1821+ 8-Bay, 4x 1GbE, PCIe (4GB Synology ECC RAM)



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Synology DS1821 Key features


6Gb/s SATA to 1GbE Ethernet
4GB DDR4 ECC RAM
AMD Ryzen V1500B 4-core 2.2 GHz
3yr Warranty


DiskStation DS1821+
High capacity storage and data protection for anyone

Designed for scalability and performance
The 8-bay Synology DS1821+ is aimed at IT enthusiast and SMB customers looking for a powerful and scalable storage solution, its business-grade backup solutions keep users safe and protected from potential data loss, while major improvements to compute capabilities and throughput means workloads are finished faster than ever before.

  • CPU - AMD Ryzen™ Quad-core 2.2 GHz
  • Cache Acceleration - Dual M.2 2280 slots for NVMe Cache
  • Performance - 113K 4K random read IOPS1
  • Scalability - Expand up to 18 drives with two DX517 expansion units

A powerhouse on all fronts
The DS1821+ can handle demanding application workloads and a greater number of concurrent users. Experience faster file indexing in Synology Drive, photo organization in Moments, and more responsive web services.1

Turbocharge and supersize it networking or for higher storage capacity.

2 x M.2 NVMe
Enable ultra-fast NVMe cache to accelerate HDD arrays by 20X or more
10GbE support
Add in faster SFP+ or RJ-45 networking to turbocharge existing workflows
Storage Expansion
Supports two DX517 expansion units for a total of 18 bays

HDD/SSDs, 10GbE network adapter cards, and expansion units are sold separately.

Ultimate file management and sharing
File Station is a web-based, fast and secure management tool built to allow easy, drag-and-drop operations without requiring any complex setup on Mac or PC. Advanced search and filtering tools allow for easy organization and file sharing. For complete compatibility, DS1821+ supports the following protocols: AFP, FTP, iSCSI, NFS, SMB, and WebDAV.

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.
     
Ultimate Backup Solution
DS1821+ integrates various backup applications into an intuitive user interface, offering durable storage technologies to safeguard your valuable data on any device.

Active Backup for Business
Centralize backup tasks for VMware, Windows, and file servers. Restore whatever you want fast and reliably when needed.
Learn more
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.
Learn more
Synology Drive
Safeguard your computer with Synology Drive Client. Effortlessly perform real-time data backups and point-in-time file recovery.
Learn more
Active Backup for
Microsoft 365 / G Suite
On-premise backup solution with a centralized dashboard. Optimize storage efficiency with single instancing and block-level deduplication technology.
Microsoft 365G Suite

Engineered for reliability, backed by Synology
DS1821+ is designed to reliably store your data and is backed by Synology's three-year hardware warranty. An optional two-year extended warranty is available in select regions for up to five years of coverage. Learn more

Powered by Synology DSM

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

Learn more
Synology MailPlus
Secure, reliable, and private mail server solution with an intuitive and modern mail client.

Learn more
Synology High Availability
Seamless transition between clustered servers in the event of a server failure to minimize the impact on applications.

Learn more
Security
Comprehensive built-in security tools are constantly updated to protect your devices against evolving threats.

Learn more
Synology Drive
A versatile solution for file management and synchronization. 

Learn more
Surveillance Station
Complete surveillance solution for recording, monitoring, and management.

Learn more
Works best with Synology solid-state drives
Engineered to handle intensive 24/7 workloads, Synology SSDs are designed to provide consistent high-performance.

SATA 2.5” SSD SAT5200 
NVMe M.2 SSD SNV3400 

Notes:
Performance figures are achieved in the Synology lab with optimized network and configuration settings. Actual performance could vary in different environments. Comparison done against prior-generation 8-bay DS1819+. For full details on the test setup, please visit the Synology performance page here.


CPU CPU Model AMD Ryzen V1500B
  CPU Architecture 64-bit
  CPU Frequency 4-core 2.2 GHz
  Hardware Encryption Engine (AES-NI)  
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 8
  Maximum Drive Bays with Expansion Unit 18 (DX517 x 2)
  M.2 Drive Slots 2 (NVMe)
  Compatible Drive Type* (See all supported drives)
  • 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  
  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 RJ-45 1GbE LAN Port 4 (with Link Aggregation / Failover support)
  USB 3.0 Port 4
  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*
  Notes exFAT Access is purchased separately in Package Center.
Appearance Size (Height x Width x Depth) 166 mm x 343 mm x 243 mm
  Weight 6 kg
Others System Fan 120 mm x 120 mm x 2 pcs
  Fan Speed Mode
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
  Easy Replacement System Fan  
  Brightness Adjustable Front LED Indicators  
  Power Recovery  
  Noise Level* 22.2 dB(A)
  Scheduled Power On / Off  
  Wake on LAN / WAN  
  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* 59.8 W (Access)
26.18 W (HDD Hibernation)
  British Thermal Unit 204.05 BTU/hr (Access)
89.33 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 meter 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
  • FCC
  • CE
  • BSMI
  • EAC
  • CCC
  • KC
  • VCCI
  • RCM
Warranty 3-year hardware warranty, extendable to 5-year coverage - EW201
  Notes The warranty period starts from the purchase date as stated on your purchase receipt. 
Environment RoHS Compliant
Packaging Content
  • Main Unit X 1
  • Accessory Pack X 1
  • AC Power Cord X 1
  • RJ-45 LAN Cable X 2
  • Quick Installation Guide X 1
Optional Accessories
  • DDR4 ECC SODIMM: D4ES01-4G/D4ES01-8G/D4ECSO-2666-16G
  • Expansion Units: DX517
  • 2.5" SATA SSD: SAT5200
  • M.2 2280 NVMe SSD: SNV3400
  • 10GbE Network Interface Card: E10G18-T2/E10G18-T1/E10G17-F2
  • VisualStation: VS960HD/VS360HD
  • Surveillance Device License Pack
  Notes All memory modules will operate at the maximum frequency specified by the CPU manufacturer.

Notes:

  • Model specifications are subject to change without prior notice.
  • The figures are based on Synology internal testing. Each performance test is done individually. No other services or applications are processed at the same time.
  • The actual performance may be lower than lab testing figure due to differences in server configuration, deployment, and the number of active operations.
  • If usage requirements exceed the above recommended specifications, please contact us.
Spanstor Build And Test
If you buy this Synology DiskStation NAS and hard drives we do free build and test for the unit and hard drives. So you can use this device straight out of the box. All free of charge in DS1821+ price.
Same Day and Next Day Delivery available in UK and fast WorldWide delivery for products in stock.
FREE Business Quotes available for products with specific requirements or quantities. Often cheaper than Amazon.

Synology DS1821+ DiskStation NAS expansion units


When running out of hard drive capacity on the Synology, DX517 provides an easy way to immediately scale capacity up to 40TB by additional 5 hard drives. The RAID volume on the Synology DiskStation NAS can be expanded directly without having to reformat the existing hard drives, ensuring it continues its service during the capacity expansion.
Synology DS1821+ expansion DX517 More Info


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Specifications

General

Stock code IBSY-1821P
Brand Synology
Series DiskStation NAS
Model DS1821+
Type 8-Bay, 4x 1GbE, PCIe (4GB Synology ECC RAM)
ROHS Y
Date added 10/11/2020

DS1821+ Spec Information

Form Factor / Drive Height 166 x 343 x 243 mm
Platter size 3.5"
Platter (alternate) 2.5"
RAM/Cache 4GB DDR4 ECC
Guarantee 3yr
Processor AMD Ryzen V1500B 4-core 2.2 GHz
CPU Mark (cpubenchmark.net) ? 5000
Total Drives 8
Total Drives (alternate) 8
RAID 0:1:5:6:SHR:

DS1821+ Spec Connections

sub- connectionI/EQuantity
M.2M.2 NVMeInternal2
SATASATA 3.5Internal8
LANRJ45 1GbEExternal4
PCIePCIe v3 x8 (x4)Internal1
USB3USB3.0External4
eSATAeSATAExternal2

Software

DS1821+ Speed

Speed/RPM 6Gb/s SATA to 1GbE Ethernet

Physical

Weight (kg) 10kg
Weight (bare) 6kg
Colour Black
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inc.VAT £1,106.40

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Reviews & QuestionsPlease share your opinion or ask a question, about THIS product...

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Question, Review or Comment





Poor Excellent

Ask a Professional! advice here
For security reasons, please answer: How Much is 8+9 =

Alternatively, click here to contact us privately.

Synology DiskStation NAS DS1821+ reviews


23/12/2020 | Guest | GB Flag |
Do I have to fill all the bays with drives?
You can start with any number of drives, and leave some room for future expansion. We recommend that you use exactly the same make and model of drive when expanding your RAID.



Would you like to tell us about a lower price for DS1821+?
Link to a DS1821+ review page
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