Synology DS923+ DiskStation Owner’s Manual

Synology DS923+ DiskStation

Flexible File Sharing and Storage for Homes and Small Business

The Synology DS923+ is a capable 4-bay NAS solution that can be adjusted and expanded as your needs change, with optional support for up to nine drives, faster networking, and NVMe SSDs for caching or additional storage pools. Powered by Synology DiskStation Manager (DSM), it offers a flexible all-in-one solution for data sharing, synchronization, backup, and surveillance.

Highlights

• Dependable Performance
  Up to 625/559 MB/s sequential read/write throughput makes file operations quick and efficient1

• Versatile Network Storage
  Leverage built-in file and photo management, data protection, virtualization, and surveillance solutions

• Fast and Stable Connectivity
  Two 1GbE ports for simple integration into existing environments with optional 10GbE connectivity2 to tackle more specialized, bandwidth-heavy applications

• Easy Capacity Expansion
  Add 5 extra drive bays with one DX517 expansion unit for a maximum of 9 storage drives3

• Extendable Product Support
  Backed by Synology’s 3-year limited hardware warranty, extendable to 5 years in select markets4,5

Next-Generation File System
Btrfs is a modern file system designed to safeguard data integrity through metadata mirroring, file self-healing, and fast snapshot replication.

Versatile Storage for Any Purpose

The DS923+ comes out of the box with intuitive and comprehensive file management, media organization, and backup options, making it ideal for IT enthusiasts, creative professionals, and business owners looking for a powerful and compact storage system.

• Up to 625 MB/s sequential read and 559 MB/s sequential write performance1 enables fast file sharing, syncing, streaming, and backup for multiple users
• Supports 4 x 3.5” or 2.5” SATA HDD/SSD,6 expandable to 9 drives with one Synology DX517 expansion unit3
• Up to 32 GB DDR4 ECC memory offers protection against potential crashes and inadvertent changes in data through automatic correction of data errors
• Two Gigabit RJ-45 ports can be bonded using Link Aggregation to provide automatic network failover and load balancing
• Maximize return on investment by upgrading your storage platform as more demanding needs arise with two built-in M.2 NVMe SSD slots7 and an optional 10GbE RJ-45 Network Upgrade Module2

Built for Data Protection and Integrity

Safeguard your critical data with the powerful storage management features of Synology DSM, built on the advanced Btrfs file system.

• Advanced snapshot technology provides schedulable and near-instantaneous data protection for shared folders and LUNs
• File and folder-level data restoration enables recovery of specific files or folders
• Flexible storage quota system helps admins manage available space by specifying storage limits for shared folders
• File self-healing detects and recovers corrupted files using mirrored metadata and RAID configurations
• Inline compression minimizes storage consumption and extends the life of drives by compressing data before it is written to the storage pool

Synology Backup Solutions
DSM backup solutions are designed to be low-maintenance, with different RPO/RTO targets, storage efficiency, and backup destinations available depending on your requirements.

Complete Data and Device Backup Solutions

Synology DSM comes standard with a complete package of backup solutions available at no extra cost.

• Active Backup Suite consolidates backup tasks and offers rapid restoration of Windows and Linux endpoints, VMs, Synology NAS, and SaaS applications
• Snapshot Replication creates point-in-time copies of shared folders and LUNs to protect them from accidental modifications or ransomware incidents
• Hyper Backup backs up your NAS data to multiple destinations securely and efficiently with integrity checks and powerful deduplication, compression, and versioning options
• C2 Storage for Hyper Backup offers a dedicated secure public cloud destination for Synology NAS backup data8

Synology Productivity Suite
A powerful and secure private cloud solution that lets teams collaborate, sync files, and communicate with others anytime, anywhere.

Powerful Collaboration and Sharing Tools

Synology’s productivity suite provides a private cloud solution for on-site and remote workers to concurrently edit documents, share files, manage emails, send instant messages, and more.

• Synology Drive is a cloud file management solution that supports file sharing, remote data access, cross-device and cross-site synchronization, on-demand file restoration, and backup
• The Synology Office extension lets users collaborate on documents, spreadsheets, and presentation slides in real time, supported by convenient options such as file versioning for easy restoration and password protection
• Synology Photos serves as a media organization hub for enthusiasts and professionals looking to efficiently manage and share their photos and videos through intuitive browsing options and secure sharing methods
• Synology Hybrid Share combines reliable on-premises storage and efficient syncing of shared folders in the cloud to enable seamless cross-site synchronization and local file access at LAN speed8

Always On Guard
Protect your premises with Synology’s reliable and intuitive video management system (VMS) solution. Surveillance Station combines intelligent monitoring and robust management features for flexible deployment scenarios.

Private Video Surveillance
Synology Surveillance Station transforms the DS923+ into a powerful Network Video Recorder solution with support for up to 40 IP cameras.9

• 8,300+ supported camera models
• ONVIF support for a broader selection of cameras
• Private, subscription-free storage of recordings
• Access through web browsers, desktop clients, or mobile apps
• Event-based rules to trigger specific actions
• Email, SMS, and push notification options

Flexible Virtualization
Whether providing VM storage through iSCSI and NFS or running VMs directly on the DS923+ using Virtual Machine Manager, Synology DSM provides comprehensive tools to protect your VMs.

Virtualization and Certified Storage Certified Storage
Your DS923+ can serve as virtual machine storage, VM backup server, and a lightweight container and VM host. It is fully certified as storage for VMware® vSphere™, Microsoft® Hyper-V®, Citrix® XenServer™, and OpenStack environments.

• Synology Storage Console for VMware or Windows platforms
  lets you manage VM storage components directly from your hypervisor. VMware VAAI integration and Windows ODX help offload storage operations and speed up data transfer

• Host light containers and VMs for testing, sandboxing, and emergency recovery purposes with Docker and Synology Virtual Machine Manager, a native hypervisor that supports Windows, Linux, and Virtual DSM10

Hardware Overview

Front

Rear

1| Status Indicator| 2| Drive Status Indicators| 3| Drive Tray Locks| 4| USB 3.2 Gen 1 Port
---|---|---|---|---|---|---|---
5| Power Button and Indicator| 6| Drive Trays| 7| 1GbE RJ-45 Ports| 8| Reset Button
9| Expansion Port| 10| Power Port| 11| Network Upgrade Slot| 12| USB 3.2 Gen 1 Port
13| Fan| 14| Kensington Security Slot| | | |

Technical Specification

Hardware

General DSM Specifications

Packages and Applications

Environment and Packaging

Environmental safety / RoHS compliant

Package contents

• 1 x DS923+ main unit
• 1 x Quick Installation Guide
• 1 x Accessory pack
• 1 x AC power adapter
• 1 x AC power cord
• 2 x RJ-45 LAN cables

Optional accessories16

• DDR4 ECC SODIMM: D4ES02-4G / D4ES02-8G / D4ES01-16G
• Synology Network Upgrade Module: E10G22-T1-Mini
• M.2 2280 NVMe SSD: SNV3400 series
• 2.5″ SATA SSD: SAT5200 series
• 3.5″ SATA HDD: HAT5300 series
• Expansion Unit: DX517
• MailPlus License Pack14
• Surveillance Device License Pack9
• Virtual DSM License Pack10
• Extended Warranty: EW201, Extended Warranty Plus5

Warranty

3 years4,5

Note: Specifications are subject to change without notice. Please refer to the model’s specifications page for the most up to date information.

1. Performance figures obtained through internal testing by Synology. Actual performance may vary depending on the testing environment, usage, and configuration. See performance charts for more information.
2. One 10GbE Rj-45 port can be added to the DS923+ with Synology E10G22-T1-Mini Network Upgrade Module.
3. DS923+ supports up to 9 drives with the Synology DX517 expansion unit, sold separately.
4. The warranty period starts from the date of purchase as stated on your purchase receipt. Learn more about our limited product warranty policy.
5. Up to 5 years of warranty are available as an additional bundle with Extended Warranty Plus or Extended Warranty, both 2-year extended warranty service add-ons available in select regions. Check availability for Extended Warranty EW201 or Extended Warranty Plus.
6. Check our compatibility list for supported drives.
7. Synology SNV3400/3410 series M.2 NVMe SSD drives can be installed through the built-in M.2 slots to enable SSD caching or create SSD storage pools. Drives are sold separately.
8. C2 Storage for Hyper Backup and Hybrid Share requires purchase of an annual or monthly subscription. A free trial is available for each newly registered device.
9. Surveillance Station includes two free licenses. Connecting more cameras and devices requires additional licenses. Learn more
10. Certain advanced features require Virtual Machine Manager Pro. One Virtual DSM license is included. Additional Virtual DSM instances require the purchase of Virtual DSM Licenses.
11. System snapshots include snapshots taken by SAN Manager, Snapshot Replication, and Virtual Machine Manager.
12. Maximum concurrent connections can be increased to 2,000 by installing at least 8 GB of RAM memory.
13. Presto File Server license can be purchased separately through the application.
14. Five MailPlus email accounts are included. Additional email accounts can be added with the purchase of Synology MailPlus License Packs. Learn more
15. Synology Active Insight is currently in Beta with all features available for evaluation. Certain functionalities may require a subscription upon official release.
16. Please refer to our compatibility list for the latest optional accessories list.

SYNOLOGY INC.
© 2022, Synology Inc. All rights reserved. Synology, the Synology logo are trademarks or registered trademarks of Synology Inc.
Other product and company names mentioned herein may be trademarks of their respective companies.
Synology may make changes to specification and product descriptions at anytime, without notice.
DS923+-2022-ENU-REV001

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