Synology High Density HD6500 Rackmount 4U 60-Bays (SAS drive only, Expandable upto 300-Bays) – HD6500
High Density HD6500
Scalable high-density storage server for multi-petabyte applications
Overview
Features
All the space you will ever need
With 60 bays in a 4U rackmount enclosure and support for up to 300 drives after expansion, the Synology HD6500 is the ideal high-density storage solution for large-scale warm and cold storage applications such as full system backups, video post-production, and large surveillance deployments.
CPU
2 x 10-core Intel Xeon Silver
Throughput
Over 6,688/6,662MB/s sequential read/write1
Memory
64 GB DDR4 ECC, expandable to 512 GB
Scalability
Expand to 300 drives with four RX6022sas expansion units
Consistent performance at five times the size
The HD6500 is designed to scale up to 5 times in capacity with four additional RX6022sas expansion units. SAS multipath-enabled connectivity provides up to double the typical performance together and increased redundancy.
Powerful networking options
The HD6500 supports a large variety of networking interfaces, protocols, and configurations, whether you need fast sequential transfer, support for simultaneous connections, or high network redundancy.
Built-in fast connectivity
Three Gigabit Ethernet and two 10GbE RJ-45 ports allow for rapid transfer speeds right out of the box.
Mix and match network ports
Add extra 10GbE SFP+/RJ-45, 25GbE SFP28, or Fibre Channel ports in varying configurations by leveraging the four expansion slots.2
Failover and network balancing
Bond multiple network interfaces with Link Aggregation to enable automatic network failover and load balancing.
Consolidate your data storage
Back up your backup solutions, bring all your files together in one place, or bring distributed surveillance deployments under central control.
Massive file server
Host and retrieve massive files from extensive archives whenever needed. Provide user friendly access and set up powerful cross-site syncing.
Private cloud
A private cloud suite for file sharing
Synology Drive is a private cloud management and access solution that enables remote data access, synchronization, on-demand file restoration, and backup via desktop and mobile applications. Sync data between different platforms and devices, and access your organization’s files through mobile apps, desktop clients, and a browser-based interface. Set granular file and folder access and sharing permissions. Maintain a full overview of file activities and track file share settings changes with detailed records in the advanced Synology Drive Admin Console. Learn more
Cross-site syncing
Leverage SMB or NFS shares to provide efficient access to company files over the local network or VPN. Manage data access privileges with access control lists (ACL) though Active Directory/LDAP integration and protect files against tampering or removal with built-in snapshot technology.
Cross-site syncing
Secure site-to site file and folder syncing
Make sure branches or teams always have up-to-date copies of crucial documents and data available locally by syncing folders one or two-way using Synology Drive ShareSync. Let your Synology systems update files across locations each time there is a change to efficiently keep all stakeholders on the same page. Learn more
Efficient cross-site syncing through the cloud
Securely synchronize files and data from the HD6500 to Synology systems across different sites or offices, and back, by leveraging hybrid cloud technology with Synology Hybrid Share.4 Synchronize large sets of data to the cloud, and leverage the powerful bandwidth of our data centers to stream requested files to local NAS deployed at branch offices, no matter their size. Frequently used files are kept stored on local NAS to provide users access at LAN speeds and can also be pinned manually to prevent them from being removed from the cache. Learn more
Central backup server
Protect large numbers of PCs, servers, Synology systems, and hypervisors, or back up your backup servers with a central storage solution.
Back up Synology storage systems
Backup destination for shares and LUNs
Use Hyper Backup to back up files, LUNs, installed applications, and system configurations from tens or hundreds of Synology servers to your HD6500. Set and forget backup tasks with regular schedules, enhance security with fine-grained user permissions and encryption, reduce backup sizes with built-in deduplication, and restore data flexibly with multi-versioning. Learn more
Snapshot Replication3 enables configurable point-in-time snapshots of shared folders and LUNs with an RPO as low as 5 minutes and recovery within seconds. Learn more
Bare-metal backup for Synology NAS
Centrally manage bare-metal backups of all your Synology servers from a single centralized console on your HD6500. Leverage built-in deduplication technology to reduce backup sizes and multi-versioning to allow flexible restoration.
Back up Windows and Linux endpoints
Bare-metal PC, server, and VM backup
Securely back up Windows clients and servers, Linux endpoints, Synology servers, and VMware® and Hyper-V® virtual machines to the HD6500 with Active Backup for Business. Coordinate all data protection from the centralized management console and choose between bare-metal or file-level restoration, while leveraging built-in deduplication technology to reduce backup sizes. Learn more
SaaS protection with local backups
Protect full Microsoft 365 and Google Workspace accounts by maintaining complete offline copies of your crucial information and configurations with Active Backup for Microsoft 365 and Active Backup for Google Workspace.
Main surveillance storage
Manage distributed deployments of hundreds of local recording servers and thousands of IP cameras centrally. Learn more
Centralized, secure, and scalable surveillance
Flexible scaling and expansion
Connect up to 150 IP cameras5 from a selection of over 8,300 validated models to the HD6500 itself, or connect hundreds more by adding recording servers at the edge. Easily add storage as deployments grow.
Central management and recording
Manage up hundreds of Synology NAS or NVR recording servers from one host, store copies of all or some recordings centrally, and monitor all streams from one interface with Surveillance Station Centralized Management System.
Secure and private video storage
Admins can set detailed rules for who can check live streams or review recordings and footage can be protected against unauthorized access with industry-standard AES-256 encryption.
Anywhere access with multiple clients
Watch and analyze live streams or recordings from web browsers, desktop clients, or mobile apps.
Advanced deployment and analysis options
Batch and automated camera deployment
Automatically locate cameras within a set IP range or configure units in batch by importing spreadsheets and conveniently replicate settings to new cameras.
Instant event streaming on multi-location maps
Preview footage directly on multi-floor, multi-location maps when events are detected to stay on top of your deployment, with Google Maps and OpenStreetMap integration to make geographically spread-out deployments easier to monitor.
Dual recording, locally and to the cloud
Record each camera’s footage to two Synology servers simultaneously for added redundancy and instant access — for instance, to a smaller device at the edge and a larger central management server. Stream feeds directly to the cloud with C2 Surveillance for fast access and convenient sharing whenever you need evidence.4
Event detection and smart analytics options
Add support for deep learning-powered algorithms and detection profiles such as intrusion detection, license plate recognition, congestion alerts, and face recognition by joining Deep Learning NVR servers to your deployment.
Get more with DiskStation Manager
Take advantage of a host of native productivity, management, and security solutions available in the web-based Synology DSM operating system.
Central Management System
Conveniently manage your fleet of Synology NAS from a centralized console.
Security
Secure data with comprehensive built-in security tools to protect your devices against evolving threats.
Synology High Availability
Seamless transition between clustered servers in the event of a server failure to minimize the impact on applications.
Synology has you covered
The HD6500 is backed by Synology’s 5-year limited warranty,6 including technical support and hardware replacement services to maximize your return on investment and ensure continued high-quality performance. Learn more
Performance backed by Synology drives
Leverage high sustained performance and reliability with enterprise-grade drives with built-in data protection designed for Synology systems.
High Density HD6500
- 1 Power Button and Indicator
- 2 Status Indicator
- 3 Alert Indicator
- 4 Mute Button
- 5 System Drive Status Indicators
- 6 System Drive Trays
- 7 PSU Fans
- 8 Power Port
- 9 PSU Indicators
- 10 Console Port
- 11 Reset Button
- 12 1GbE RJ-45 Ports
- 13 10GbE RJ-45 Ports
- 14 Management Port
- 15 USB 3.2 Gen 1 port
- 16 PCI Express Expansion Slots
- 17 SAS OUT Port (Primary)
- 18 SAS OUT Port (secondary)
- 19 Drive Trays
- 20 Drive status indicator
Detailed Tech Specification
Hardware Specs
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CPU
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CPU Model | Intel Xeon Silver 4210R |
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| CPU Quantity | 2 | |
| CPU Architecture | 64-bit | |
| CPU Frequency | 10-core 2.4 (base) / 3.2 (turbo) GHz | |
| Hardware Encryption Engine (AES-NI) | Yes | |
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Memory
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System Memory | 64 GB DDR4 ECC RDIMM |
| Memory Module Pre-installed | 64 GB (32 GB x 2) | |
| Total Memory Slots | 16 | |
| Maximum Memory Capacity | 512 GB (32 GB x 16) | |
| Notes |
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Storage
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Drive Bays | 60 |
| Maximum Drive Bays with Expansion Unit | 300 (RX6022sas x 4) | |
| SAS multipathing | Yes | |
| Compatible Drive Type* (See all supported drives) |
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| Hot Swappable Drive | Yes | |
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External Ports
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RJ-45 1GbE LAN Port | 2 (with Link Aggregation / Failover support) |
| RJ-45 10GbE LAN Port | 2 (with Link Aggregation / Failover support) | |
| Management LAN Port | 1 | |
| Max. number of LAN ports | 15 | |
| USB 3.2 Gen 1 Port* | 2 | |
| Expansion Port | 2 | |
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PCIe
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PCIe Expansion |
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File System
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Internal Drives |
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| Notes | exFAT Access can be installed for free from Package Center in DSM 7.0. In DSM 6.2 or earlier versions, exFAT Access needs to be purchased in Package Center. | |
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Appearance
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Form Factor (RU) | 4U |
| Size (Height x Width x Depth) | 176 mm x 482 mm x 1020 mm | |
| Weight | 37.9 kg | |
| Rack Installation Support* | 4-post 19″ rack (Synology Rail Kit – RKS-03) | |
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Others
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System Fan | 80 mm x 80 mm x 4 pcs |
| Fan Speed Mode |
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| Easy Replacement System Fan | Yes | |
| Power Recovery | Yes | |
| Noise Level* | 60.8 dB(A) | |
| Scheduled Power On / Off | Yes | |
| Wake on LAN / WAN | Yes | |
| Power Supply Unit / Adapter | 1600 W | |
| Redundant Power Supply | Yes | |
| AC Input Power Voltage | 200V to 240V AC | |
| Power Frequency | 50/60 Hz, Single Phase | |
| Power Consumption* | 1025.2 W (Access) 418 W (HDD Hibernation) |
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| British Thermal Unit | 3495.93 BTU/hr (Access) 1425.38 BTU/hr (HDD Hibernation) |
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Temperature
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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 | |
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Certification
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Warranty
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5 Years | |
| Notes | The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more) | |
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Environment
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RoHS Compliant | |
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Packaging Content
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Optional Accessories
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Software Specs
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DSM Specifications
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| Maximum Single Volume Size* |
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| Maximum Internal Volume Number | 256 | |
| RAID Group | Yes | |
| Supported RAID Type |
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| RAID Migration |
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| Volume Expansion with Larger HDDs |
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| Volume Expansion by Adding a HDD |
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| Global Hot Spare Supported RAID Type |
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| Notes | On Peta Volume enabled volumes, Snapshot Replication, shared folder encryption, and compression will not be available. Please refer to this article for more information on limitations. | |
| File Protocol | SMB/AFP/NFS/FTP/WebDAV | |
| Maximum Concurrent SMB/AFP/FTP Connections | 6,000 | |
| Maximum Concurrent SMB/AFP/FTP Connections (with RAM expansion) | 6,000 | |
| Windows Access Control List (ACL) Integration | Yes | |
| NFS Kerberos Authentication | Yes | |
| Notes |
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| Maximum Local User Accounts | 16,000 | |
| Maximum Local Groups | 512 | |
| Maximum Shared Folder | 512 | |
| Maximum Shared Folder Sync Tasks | 32 | |
| Maximum Hybrid Share Folders | 30 | |
| Notes | For more details about the maximum number of Hybrid Share folders, check this article. | |
| Synology High Availability | Yes | |
| Syslog Events per Second | 6,000 | |
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Virtualization
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Windows Server 2016 | Yes |
| Windows Server 2019 | Yes | |
| Citrix Ready | Yes | |
| OpenStack | Yes | |
| Networking Protocols | SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, Fibre Channel, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV | |
| Supported Browsers |
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| Supported Language | English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svenska, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český, ภาษาไทย, 日本語, 한국어, 繁體中文, 简体中文 | |
| Notes | For an updated list of supported browser versions, check the DSM Technical Specifications. | |
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Add-on Packages view the complete package list
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Antivirus by McAfee (Trial)
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Yes | |
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| Maximum Number of Concurrent Users | 500 | |
| Notes |
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| Maximum iSCSI Target Number | 256 | |
| Maximum LUN | 512 | |
| LUN Clone/Snapshot, Windows ODX | Yes | |
| Free Email Accounts | 5 (Licenses required for additional accounts) | |
| Maximum Number of Concurrent Users | 800 | |
| Maximum Server Performance | 2,895,678 emails per day, approx. 85 GB | |
| Notes |
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| Maximum Snapshots per Shared Folder | 1,024 | |
| Maximum of System Snapshots | 65,536 | |
| Maximum IP cam (Licenses required) | 150 (including 2 Free License) (see all supported IP cameras) | |
| Total FPS (H.264) | 4500 FPS @ 720p (1280×720) 2800 FPS @ 1080p (1920×1080) 1280 FPS @ 3M (2048×1536) 850 FPS @ 5M (2591×1944) 600 FPS @ 4K (3840×2160) |
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| Total FPS (H.265) | 4500 FPS @ 720p (1280×720) 4500 FPS @ 1080p (1920×1080) 2700 FPS @ 3M (2048×1536) 1500 FPS @ 5M (2591×1944) 1120 FPS @ 4K (3840×2160) |
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| Notes |
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| Recommended Number of Concurrent Sync Clients | 2,000 (the number of connections that can be maintained when the recommended number of hosted files was reached) | |
| Recommended Number of Hosted Files | 100,000,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above) | |
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| Maximum Users | 3,400 | |
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| Recommended Virtual Machine Instances | 40 (Learn more) | |
| Recommended Virtual DSM Number (Licenses required) | 40 (including 1 Free License) | |
| Notes | The specifications vary depending on system configuration and memory size. | |
| Maximum Connections | 60 | |
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