Synology FlashStation FS6400
Blazingly Fast All-Flash Server Aiming for I/O-Intensive Applications

Overview:

Synology FlashStation FS6400 is a highly reliable and ultra-high performance all-flash server for I/O-intensive and latencysensitive applications, such as multimedia post-production, virtual machines, online transaction processing, or databases. FS6400 is backed by Synology's 5-year limited warranty.

• Synology all-flash server targeted at I/O-intensive and latency-sensitive applications
• Over 240,000 iSCSI 4K Random Write IOPS, ultra-high performance with low latency
• Dual Intel Xeon Silver 8-core processors and 32GB DDR4 ECC RDIMM, expandable up to 512GB
• Onboard 10GBASE-T ports, capable of installing optional 10GbE/25GbE/40GbE NICs
• Complete virtualization solution for VMware vSphere, Windows Server Hyper-V™, Citrix XenServer, and OpenStack Cinder
• Advanced Btrfs file system offering 65,000 system-wide snapshots and 1,024 snapshots per shared folder
• Scale up to 72 drives with 2 x Synology expansion unit RX2417sas

Uncompromising Performance

Synology FlashStation FS6400 is a 2U rackmount server designed for I/O-intensive and latency-sensitve tasks. Featuring two Intel Xeon Silver processors with Non-Uniform Memory Access (NUMA) I/O optimization, 24 drive bays supporting 2.5" SAS/SATA SSD, and 32GB DDR4 ECC RDIMM, FS6400 provides over 240,000 iSCSI 4K random write IOPS and is ideal for multimedia post-production, virtual machines, online transaction processing, or database applications.

FS6400 comes with two 10GBASE-T ports and supports optional network interface cards for high-speed data transmission. Storage capacity can be further scaled up with Synology expansion unit RX1217sas/ RX2417sas, providing up to 72 storage drives with elastic expandability. 5-year product warranty guarantees hardware replacement and technical support services, maximizing your return on investment (ROI).

Effortless Virtualization Deployment

Synology iSCSI storage fully supports most virtualization solutions to enhance work efficiency with a simple management interface. VMware® vSphere 6.5 and VAAI integration helps offload storage operations and optimizes computation efficiency. Windows Offloaded Data Transfer (ODX) speeds up data transfer and migration rates, while OpenStack® Cinder support turns your Synology NAS into a block-based storage component.

Synology Virtual Machine Manager adds boundless capabilities to your NAS. Set up and run various virtual machines, including Windows, Linux, and Virtual DSM, so that you can test new software versions in a sandbox environment, isolate your customers' machines, and increase the flexibility of your FS6400 with reduced hardware deployment and maintenance costs.

Features:

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Next-generation file system for better data protection

The Btrfs file system introduces advanced storage technologies and optimized snapshots to prevent data corruption and reduce maintenance overheads. It offers flexible, efficient data protection and recovery tools while ensuring high-level data integrity.

• Flexible Shared Folder/User Quota System provides comprehensive quota control on all user accounts and shared folders
• Snapshot Replication provides schedulable and storage capacity-saving data protection with 1,024 shared folder backups and 65,000 system-wide snapshots
• File- or folder-level data restoration accelerates data recovery and provides more flexibility for businesses
• Automatic file self-healing detects and recovers corrupted files without user intervention

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Powered by Synology DiskStation Manager

Specifications:

1. Power Button & Indicator
2. Beep off button
3. Drive Trays
4. Drive Status Indicator
5. PSU fan
6. Power port
7. PSU indicator
8. Console port
9. Reset button
10. 1GbE RJ-45 port
11. 10GbE RJ-45 (10GBase-T) port
12. USB 3.0 port
13. PCIe expansion slot
14. Expansion port

FS6400 Hardware Specifications:
Hardware Specifications
CPU	2 x Intel Xeon Silver 4110 8-core 2.1GHz, Turbo Boost up to 3.0GHz
Hardware encryption engine	Yes (AES-NI)
Memory	32 GB DDR4 ECC RDIMM (16 GB x 2) Expandable up to 512 GB (32 GB x 16)
Compatible drive type	24 x 2.5" SAS SSD/HDD or SATA SSD (drives not included)
Hot swappable drive	Yes
External port	2 x USB 3.0 port 1 x Expansion port
Size (Height x Width x Depth)	88 x 430.5 x 692 mm 88 x 482 x 724 mm (with server ears)
Weight	17.26 kg
LAN port	2 x 10Gbe RJ-45 (10GBASE-T) 2 x Gigabit RJ-45
PCIe 3.0 slot	2 x 8-lane x8 slots High-performance network interface card support
Wake on LAN/WAN	Yes
System fan	4 (80 x 80 x 32 mm)
AC input power voltage	100 V to 240 V AC
Power Frequency	50 to 60Hz, single phase
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
Maximum operating altitude	5,000 m (16,400 ft)
General DSM specification
Networking protocol	SMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP, VPN (PPTP, OpenVPN, L2TP)
File system	Internal: Btrfs, ext4 External: Btrfs, ext4, ext3, FAT, NTFS, HFS+, exFAT
Supported RAID type	Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, Synology RAID F1
Storage management	Maximum single volume size: 200TB (for RAID 5 or RAID 6 groups only) Maximum system snapshots: 65,536 Maximum internal volume: 256
SSD cache	Read/write cache support
File sharing capability	Maximum local user account: 16,000 Maximum local group: 512 Maximum shared folder: 512 Maximum concurrent SMB/NFS/AFP/FTP connection: 8,000
Privilege	Windows Access Control List (ACL), application privileges
Directory service	Windows AD integration: Domain users login via SMB/NFS/AFP/FTP/File Station, LDAP integration
Virtualization	VMware vSphere 6.5, Microsoft Hyper-V, Citrix, OpenStack
Security	Firewall, shared folder encryption, SMB encryption, FTP over SSL/TLS, SFTP, rsync over SSH, login auto block, Let's Encrypt support, HTTPS (customizable cipher suite)
Supported client	Windows 7 onwards, macOS 10.11 onwards
Supported browser	Chrome, Firefox, Internet Explorer 11 onwards, Safari 11 onwards; Safari (iOS 11 onwards), Chrome (Android™ 6.0 onwards)
File Server & Synchronization
Drive	Provide a universal portal to synchronize your files across various platforms, including Windows, macOS, Linux, Android and iOS. The built-in universal portal allows you to access data anytime and anywhere. Maximum number of hosted files: 5,000,000 Maximum number of concurrent connections for PC clients: 2,000
File Station	Virtual drive, remote folder, Windows ACL editor, compressing/extracting archived files, bandwidth control for specific users or groups, creating sharing links, transfer logs
FTP Server	Bandwidth control for TCP connections, custom FTP passive port range, anonymous FTP, FTP SSL/TLS and SFTP protocol, boot over the network with TFTP and PXE support, transfer logs
Presto File Server	High-speed data transfer over WAN with exclusive SITA technology between Synology NAS and desktop
Cloud Sync	One or two-way synchronization with public cloud storage providers including Alibaba Cloud OSS, Amazon Drive, Amazon S3-compatible storage, Backblaze B2, Baidu Cloud, Box, Dropbox, Google Cloud Storage, Google Drive, hubiC, MegaDisk, Microsoft OneDrive, OpenStack Swift-compatible storage, Tencent COS, WebDAV servers, Yandex Disk
Universal Search	Offer global search into applications and files
File Server & Synchronization
iSCSI Manager	Maximum iSCSI target: 256 Maximum iSCSI LUN: 512 iSCSI LUN clone/snapshot support
Virtual Machine Manager	Deploy and run various virtual machines on Synology NAS, including Windows, Linux, or Virtual DSM
Data Protection & Backup Solution
Hyper Backup	Support local backup, network backup, and data backup to public clouds
Backup tools	DSM configuration backup, macOS® Time Machine® support, Synology Drive Client desktop application Shared folder sync - maximum task number: 32
Snapshot Replication	Maximum of shared folder snapshots: 1,024 Maximum of replication: 64
Synology High Availability	Reduces service downtime by setting up two identical NAS into one high-availability cluster
Active Backup for G Suite	Support G Suite My Drive and Team Drive backup and restoration
Active Backup for Microsoft 365	Support Office 365 OneDrive for Business, mail, contacts, and calendar backup and restoration
Active Backup for Business	All-in-one backup solution designed for heterogeneous business IT environment, enabling IT admins to remotely manage and monitor protection over PC, servers and VM on one centralized console
Productivity & Collaboration
Collaboration tools	Collaborate with instant message service Synology Chat, online editor Synology Office, and scheduling assistant Synology Calendar Chat maximum user: 6,000 Office maximum user: 3,400 Calendar: support CalDAV and access via mobile devices
Note Station	Rich-text note organization and versioning, encryption, sharing, media embedding and attachments
Synology MailPlus Server	Secure, reliable, and private mail solution with high-availability, load balancing, security and filtering design (Including 5 free email account licenses. Additional accounts require the purchasing of additional licenses)
Synology MailPlus	Intuitive webmail interface for MailPlus Server, customizable mail labels, filters, and user interface
Surveillance
Surveillance Station	Maximum IP cameras: 128 (total of 3,840 FPS at 720p, H.264) (Including two free camera licenses. Additional cameras require the purchasing of additional licenses)
All-in-One Server
Synology Directory Server	Provide a flexible and cost-effective domain controller solution
Central Management System	Provides a single interface to manage and monitor multiple Synology NAS models
VPN Server	Maximum connection: 40 Supported VPN protocol: PPTP, OpenVPN™, L2TP/IPSec
Mail Server	Supported Mail Server protocols: POP3, SMTP, IMAP LDAP/AD account support
Mail Station	Webmail interface for Mail Server to receive emails from multiple POP3 mailboxes, customizable SMTP server
Web Station	Virtual host (up to 30 websites), PHP/MariaDB®, third-party applications support
Other packages	DNS Server, RADIUS Server, Log Center
Others
Storage Analyzer	Volume and quota usage, total size of files, volume usage and trends based on past usage, size of shared folders, large files, most recently modified files, least recently accessed files
Antivirus Essential	Full system scan, scheduled scan, white list customization, virus definition auto update
Security Advisor	Malware detection/removal, user account/password, network, system-related security scan
Other packages	Additional 3rd-party packages available on Package Center
Certifications and Packaging
Environment safety	RoHS compliant
Package content	1 x FS6400 main unit 1 x Quick Installation Guide 1 x Accessory pack 2 x AC power cords
Optional accessories	16GB/32GB DDR4-2666 ECC RDIMM (D4RD-2666-16G/D4RD-2666-32G) Synology E10G17-F2/E10G18-T1/E10G18-T2 10Gbps Ethernet adapters Synology expansion unit RX1217sas/RX2417sas VisualStation units: VS960HD, VS360HD Synology RKS1317-Rail Kit Sliding Synology MailPlus License Pack Surveillance Device License Pack Virtual DSM License Pack
Warranty	5 Years

Documentation:

Download the Synology FlashStation FS6400 Datasheet  (PDF).