Synology FS6400 FlashStation NAS Price, Specifications and Details

Synology FS6400 FlashStation NAS Specifications, Cost and Abilities Revealed

FlashStation FS6400 is a highly reliable and ultra-high performance all-flash server for I/O-intensive and latency sensitive applications, such as multimedia post-production, virtual machines, online transaction processing, or databases. FS6400 is backed by Synology’s 5-year limited warranty. The FS6400 FlashStation server features truly unparalelled hardware, greater than any Synology NAS before. With highlights such as:

  • 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
  • 32GB DDR4 ECC RDIMM, expandable up to 512GB
  • Onboard 10GBASE-T ports, as well as 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

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Synology FS6400 FlashStation NAS 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).

Test Environment:

  • Operating System: DSM 6.2
  • Storage space type: RAID F1
  • FS6400: Intel DC S4610 series 480GB SSDSC2KG480G8 SATA SSD for all palletsFS1018: Intel DC S3710 series 800GB SSDSC2BA800G4 SATA SSD for all pallets
  • Memory: FS6400: 64GB DDR4 ECC RDIMM (16GB x 4)
  • File System: Btrfs
  • Aggregate 10GbE SMB network environment: FS6400: 6 sets of 10GbE network holes (built-in 10GbE network hole + 2 x Intel X540-T2 network card)
  • 10GbE iSCSI network environment: FS6400: 6 sets of 10GbE network holes (built-in 10GbE network hole + 2 x Intel X540-T2 network card)
Synology FS6400 Flash Drive NAS

Synology FS6400 FlashStation NAS Arrives with RAID F1 and Btrfs

FS6400 introduces the Btrfs file system, bringing the most advanced storage technologies to meet the management needs of modern businesses:

  • Advanced snapshot technology provides schedulable, near-instantaneous data protection of shared folders and iSCSI LUNs
  • File and folder level data restoration brings huge conveniences and saves time for users who wish to restore only a specific file or
  • Flexible shared folder and user quota system provide comprehensive quota control on all user accounts and shared folders
  • File self-healing: Btrfs file system is able to auto-detect corrupted files with mirrored metadata and recover broken data using the supported RAID volumes, which include RAID1, 5, 6, 10, and Synology RAID F1.

Due to the nature of SSD and RAID technology, how to avoid all hard drives failing at the same point in time due to the even distribution of workloads to each hard disk is the most common problem. RAID F1 distributes workloads to each hard drive in a non-average manner through a specially designed algorithm to improve the life of the hard drive while increasing the durability of the storage area and ensuring the security of your data. Innocent.

Synology FS6400 FlashStation NAS Enterprise-Grade Application and Support

Powered by the innovative Synology DiskStation Manager (DSM), FS6400 comes fully-equipped with applications and features designed specifically for large-scale businesses

  • Windows AD and LDAP support allows easy integration with existing business directory services.
  • Windows ACL support provides fine-grained access control and efficient privilege settings, allowing FS6400 to fit seamlessly into existing infrastructure.
  • Internet file access is simplified by the encrypted FTP server and the web-based file explorer Synology File Station. HTTPS, firewall, and IP auto-block support ensures file sharing over the Internet is protected with a high level of security.
  • Application privileges control access to applications and packages based on each individual account, user group, or IP address.

Synology FS6400 FlashStation NAS and 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. The intuitive and easy-to-use Virtual Machine Manager opens up rich application possibilities for your Synology NAS server. You can install and run a variety of virtual machines including Windows, Linux, Virtual DSM, and more on your Synology NAS. More importantly, VMM provides a disaster recovery solution for your IT environment, helping to increase server management resiliency and maximize service uptime.

With VMM, you can build clustering architectures for up to seven Synology NASs. VMM clustering supports migration and elastic scalability for load balancing and resource configuration.

Synology FS6400 FlashStation NAS Protection and Recovery

System reliability is critical for businesses everywhere. FS6400 responds to these concerns with wide-ranging availability and redundancy features:

  • Synology High Availability ensures seamless transitioning between clustered servers in the event of unexpected disasters and ensures that your services remain online.
  • Snapshot Replication provides schedulable, near-instantaneous data protection, ensuring business documents in shared folders, virtual machines in iSCSI LUNs, or dockerized application data remain safe and available in the event of a disaster.
  • Redundant power supplies, system fans and network ports with failover support ensure continual service uptime.
  • High reliability system design, including fan-less CPU heat-sink and passive cooling technology, prevents single points of failure.
  • DDR4 ECC RDIMM reduces power consumption and has error
    detection and correction capabilities during data transmission

Synology FS6400 FlashStation NAS Team Collaboration Applications

Use the collaboration suites on your Synology NAS to build a private cloud to enhance team cooperation and boost productivity.

  • Synology Drive allows you to access the data and files on Synology NAS through a unified portal and enable data synchronization across platforms. You can also install the online editor Synology Office and collaborate with others on Documents, Spreadsheets, and Slides.
  • Synology MailPlus allows your business to set up a private and reliable mail server with the support of high-availability design and gives your employees an intuitive web-based client to manage emailsand boost productivity.
  • Synology Calendar enables you to manage team schedules and organize daily tasks effortlessly. Event information can also be synced to your CalDAV clients, allowing you to check schedules anywhere and anytime.
  • Synology Chat is a web-based application that allows you to start conversations instantly and safely and optimizes companies’ internal communications with its powerful information management and interaction features.

Synology FS6400 FlashStation NAS Drive Specifications

Below are the full technical specifications of the Synology FS6400 Flash Based NAS. Though comparable to NAS drives such as the Synology FS3400 and FS3017, the FS6400 still manages to boast a very impressive hardware level, in a single rackmount chassis

Processor model Intel Xeon Silver 4110 x 2
Processor architecture 64-bit
Processor clock Eight core 2.1 (basic frequency) / 3.0 (maximum overclocking) GHz
Hardware Encryption Engine (AES-NI) YES
System memory 32 GB DDR4 ECC RDIMM
Pre-installed memory module 32 GB (16 GB x 2)
Total number of memory slots 16
Memory can be expanded to 512 GB (32 GB x 16)
  • Synology reserves the right to replace memory components of the same or higher clocks depending on the supplier’s product availability. Its compatibility and stability have been tested by the same rigorous tests, please feel free to use it.
  • Please purchase Synology’s original memory module for best compatibility and reliability. If you are not using a Synology memory module when expanding your memory capacity, Synology will not be able to provide full product warranty or technical support.
Storage device
Number of disk slots twenty four
Maximum number of disk slots in which the expansion unit is installed 48 (RX1217sas) / 72 (RX2417sas)
Compatible disk type* (see all supported disks)
  • 2.5″ SAS HDD
  • 2.5″ SAS SSD
  • 2.5″ SATA SSD
Maximum internal net total storage capacity 184.32 TB (7.68 TB drive x 24) (Capacity varies by RAID type)
Maximum net total storage capacity with expansion unit 552.96 TB (184.32 TB + 7.68 TB drive x 48) (Capacity varies by RAID type)
Maximum single storage capacity
  • 200 TB (only supports RAID 5 or RAID 6 groups)
  • 108 TB
Disk hot swap support YES
  • The compatible disk type refers to the type of hard disk that is confirmed to be compatible with the product after the actual measurement, and the maximum speed limit of the non-hard disk slot.
  • The maximum net total storage capacity is not limited by the maximum single storage capacity. Synology NAS can create additional storage space beyond the maximum single storage capacity. The maximum capacity depends on the support of each model. (see more)
  • The internal storage space can be expanded, but the expanded single storage space cannot exceed 200TB.
External connection埠
RJ-45 1GbE network hole 2 (supports Link Aggregation / fault transfer)
RJ-45 10GbE network hole 2 (supports Link Aggregation / fault transfer)
USB 3.0 port埠 2
Expansion port埠 1
PCIe expansion 2 x Gen3 x8 slots (x8 link)
Expansion card support PCIe Network Interface Card (see more)
File system
Internal disk
  • Btrfs
  • EXT4
External disk
  • Btrfs
  • EXT4
  • EXT3
  • FAT
  • NTFS
  • HFS+
  • exFAT*
Remarks exFAT Access is purchased separately from the kit center.
Size (height x width x depth) 88 mm x 482 mm x 724 mm
weight 17.26 kg
Rack mount support Four-post 19 吋 (Synology Rack Kit – RKS1317 )
Remarks Rack kits need to be purchased separately
other projects
System fan 80 mm x 80 mm x 4 pcs
Fan mode
  • Full speed mode
  • Low temperature mode
  • Silent mode
Replaceable system fan YES
Automatic power reply YES
Noise value* 53.7 dB(A)
Timer switch YES
Wake on the network YES
Power supply / transformer 800W
Dual power supply YES
AC input voltage 100V to 240V AC
Current frequency 50/60Hz, single frequency
Power consumption* 288.49 W (access)
145.8 W (hard disk hibernation)
British thermal unit 984.37 BTU/hr (access)
497.49 BTU/hr (hard disk hibernation)
Working 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 body
  • EAC
  • VCCI
  • RCM
  • FCC
  • CE
  • BSMI
Warranty 5 years
  • The warranty period begins on the date of purchase noted on the purchase receipt. (see more)
  • The test data for power consumption was tested with the HGST 1.8TB HUC101818CS4204 hard drive.
  • Noise value test environment: Toshiba 600GB AL14SEB060N Hard disk in standby mode, two GRAS Type 40AE microphones are installed at a distance of 1 meter before and after the Synology NAS; background noise value: 16.49-17.51 ​​dB (A); temperature: Celsius 24.25-25.75 degrees; humidity: 58.2-61.8%.
DSM product specifications (see more)
Storage management
Maximum storage space 256
Maximum number of iSCSI targets 256
Maximum number of iSCSI LUNs 512
iSCSI LUN Clone/Snapshot, Windows Uninstall Data Transfer (ODX) YES
SSD read/write cache (White Paper) YES
Support RAID disk array type
  • RAID F1
  • Basic
  • JBOD
  • RAID 0
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
RAID configuration migration
  • Basic to RAID 1
  • Basic to RAID 5
  • RAID 1 to RAID 5
  • RAID 5 to RAID 6
Expand storage with larger hard drives
  • RAID F1
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
Add new hard drive expansion storage
  • RAID F1
  • JBOD
  • RAID 5
  • RAID 6
Global Hot Spare supports RAID types
  • RAID F1
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
File service
File agreement CIFS/AFP/NFS/FTP/WebDAV
Maximum simultaneous CIFS/AFP/FTP connection number 8,000
Maximum simultaneous CIFS/AFP/FTP connection (with extended memory) 10,000
Windows Access Control List (ACL) integration YES
NFS Kerberos authentication YES
Account and shared folders
Maximum number of local user accounts 16,000
Maximum number of local groups 512
Maximum number of shared folders 512
Maximum shared folder synchronization task 32
Synology High Availability YES
Log center YES
Log receipts per second 3,000
Virtualization support
VMware vSphere 6 with VAAI YES
Windows Server 2016 YES
Citrix Ready YES
OpenStack YES
Additional kits (learn more about the complete add-on kit list)
Antivirus by McAfee (Trial) YES
Central Management System YES
Synology Chat YES
Maximum number of users 6,000
  • The maximum number of simultaneous HTTP connections has been adjusted to the maximum when testing Synology Chat.
  • When the maximum number of users is reached, the CPU and memory usage are both less than 80%.
  • For models with expandable memory, the maximum amount of memory is installed during the test.
Document Viewer YES
exFAT Access (optional) YES
Synology MailPlus / MailPlus Server YES
Number of free email accounts 5 (If you want to have more email accounts, you need to purchase additional licenses)
Maximum simultaneous number of people on the line 2,200
Maximum server performance 5,721,000 emails / daily, about 174GB
  • When the maximum number of users is reached, the CPU and memory usage are both less than 80%.
  • For models with expandable memory, the maximum amount of memory is installed during the test.
  • In high-availability mode, the performance of the mail system is slightly reduced due to data synchronization between the two servers.
  • In all of the above tests, the launched features include: anti-spam, antivirus, DNSBL, greylisting, content scanning, full-text search (English only).
Snapshot Replication YES
Maximum number of snapshots supported by a single shared folder 1,024
Maximum number of system snapshots 65,536
Surveillance Station YES
Maximum camera support number(camera license required) 128 (with 2 free licenses) (View compatible webcam)
Frames per second (FPS) (H.264)* 3840 FPS @ 720p (1280×720)
3456 FPS @ 1080p (1920×1080)
1664 FPS @ 3M (2048×1536)
970 FPS @ 5M (2591×1944)
690 FPS @ 4K (3840×2160)
Frames per second (FPS) (H.265)* 3840 FPS @ 720p (1280×720)
3840 FPS @ 1080p (1920×1080)
3072 FPS @ 3M (2048×1536)
1792 FPS @ 5M (2591×1944)
1140 FPS @ 4K (3840×2160)
Frames per second (FPS) (MJPEG)* 1260 FPS @ 720p (1280×720)
770 FPS @ 1080p (1920×1080)
560 FPS @ 3M (2048×1536)
400 FPS @ 5M (2591×1944)
Remarks The Surveillance Station uses an Axis camera; the video schedule is continuous; the Surveillance Station is used as the source of the live image; the motion detection source is set to the camera; the live image and the video use the same set of video streams.
Synology Drive YES
Recommended number of files to store 5,000,000 (for archives or files belonging to Synology Drive , please refer to the file service of the above fields for files accessed through other agreements)
Recommended number of current client PC connections 2,000 (the number of devices that can be connected at the same time when the number of files is recommended)
  • For models with expandable memory, the maximum amount of memory is installed during the test.
  • Exceeding the quantity limit may result in a longer response time for the file operation.
  • The Btrfs file system and the non-encrypted shared folder were used in the above tests.
Synology Office YES
Maximum number of users 3,400
  • The test opens multiple files and each file is edited simultaneously by 30 users.
  • When the maximum number of users is reached, the CPU and memory usage are both less than 80%.
  • For models with expandable memory, the maximum amount of memory is installed during the test.
  • Client performance may affect the maximum number of simultaneous edits. Client test computer specifications: Intel Core i3-3220 / 8GB memory
Virtual Machine Manager YES
Recommended number of virtual machines 32 (see more)
Recommended number of Virtual DSMs (purchase authorization) 32 (including 1 free license)
  • The host that implements Synology High Availability does not support Virtual Machine Manager.
  • This specification varies depending on the system configuration and the amount of memory.
VPN Server YES
Maximum number of connections 40
Environment and packaging
surroundings RoHS compliant
Package contents
  • Host X 1
  • Kit X 1
  • Power cord X 2
  • Quick Installation Guide X 1
Optional accessories
  • Monitoring device authorization
  • D4RD-2666-16G DDR4 ECC RDIMM*
  • D4RD-2666-32G DDR4 ECC RDIMM
  • Expansion unit: RX2417sas X 2
  • Expansion unit: RX1217sas X 2
  • Synology Ethernet card E10G17-F2
  • Synology Ethernet card E10G18-T1
  • Synology Ethernet card E10G18-T2
  • Synology Sliding Rack Kit – RKS1317
  • VS360HD
  • VS960HD
Remarks The D4RD-2666-16G must be used with a memory module of the same capacity and frequency. For more information, please click on this link .

Where and When Can I Buy The Synology FS6400 FlashStation NAS Drive?

Right now, the Synology FS6400 specifications have only just been unveiled, but the ÂŁ9,500+ price tag (not including your local tax) is now available, so the official release is no doubt a fair way away. Information like the FS6400 release, confirmation of the specifications and how well this device will support DSM 6.2 and DSM 7.0 in Beta will be updated.


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    9 thoughts on “Synology FS6400 FlashStation NAS Price, Specifications and Details

    1. I’m considering switching my data drive and backup to brtfs for the better integrity checking. I’ve been getting issues once in a while where files on my ext4 drive suddenly becoming 0 bytes and the same happens on my backup drive which both of are externals and I know it isn’t the external enclosure since it happened when the drive was in my old computer but it didn’t happen when my drives were formatted to ntfs when I used Windows so I’ve narrowed it down to something in the file system as of now but I can’t find information about the specific issue so I’m probably going to just try btrfs when I get another hard drive to use as an internal one without formatting my current drive giving me only one copy of my data during the transition.

    2. Is it possible to set up two different chat teams on the same NAS? For instance one for the family and another one for my office staff. Also, is it possible to name these something other than “Chat”? Thank you so much for your excellent information. I purchased a Synology DS920+ based on your recommendations. I did not fully appreciate the value of the applications until I found your videos.