Synology 24 Bay Nas Flashstation FS6400 Storage

Uncompromising performance

Synology FlashStation FS6400 is a 2U rackmount server designed for I/O-intensive and latency-sensitive tasks, ideal for multimedia post-production, virtual machines, online transaction processing, or database applications.

• CPU : Dual Intel® Xeon® Silver 8-core with NUMA
• Memory : DDR4 ECC RDIMM, up to 512GB
• High Performance : Over 240,000 iSCSI 4K random write IOPS
• Scalability : Up to 72 drives with RX2417sas1

Fast and reliable networking

With multi-LAN design, FS6400 is capable of performing Link Aggregation and failover. For environments requiring a higher speed, two optional Ethernet add-in cards can be installed on PCIe 3.0 slots to provide fast data transmission.

Complete iSCSI and virtualization solutions

Synology iSCSI storage supports most virtualization solutions such as VMware vSphere, Microsoft Hyper-V, Citrix Xen Server, and OpenStack Cinder to enhance work efficiency. You can run and manage multiple virtual machines on Windows, Linux, or DSM using Virtual Machine Manager. Learn more

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

RAID F1

Due to the peculiarities of SSD and RAID technology, a common challenge lies in how to prevent all of the drives from failing at the same time because of the evenly distributed workload. RAID F1 alleviates this problem with a specially designed algorithm to unevenly distribute workload to drives, enhancing the resilience of the storage pool and ensuring your data remains safe.

Digital asset protection

Powered by Synology DiskStation Manager (DSM), Synology NAS offers advanced security measures to protect against sudden data loss and potential security holes. 

• Security Advisor : Analyze system settings, password strength and network preferences, and remove any possible malware.
• AppArmor : A kernel-level enhancement that blocks malicious programs from accessing unauthorized system resources.
• AES 256-bit encryption : Encrypt shared folders and network data transmission to avoid unauthorized data access.
• 2-step verification : Prevent others from logging in to your DSM by generating a six-digit one-time password (OTP) on your mobile device.

Hardware Specifications

CPU

• CPU Model : Intel Xeon Silver 4110 x 2
• CPU Architecture : 64-bit
• CPU Frequency : 8-core 2.1 (base) / 3.0 (turbo) GHz
• Hardware Encryption Engine (AES-NI) : Yes

Memory

• System Memory : 32 GB DDR4 ECC RDIMM
• Memory Module Pre-installed : 32 GB (16 GB x 2)
• Total Memory Slots : 16
• Maximum Memory Capacity : 512 GB (32 GB x 16)
• 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.
• For more information on the recommended memory configurations, visit here.
• 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 : 24
• Maximum Drive Bays with Expansion Unit : 48 (RX1217sas x 2) / 72 (FX2421* x 2)
• Compatible Drive Type* (See all supported drives) : 
  • 2.5" SAS HDD
  • 2.5" SAS SSD
  • 2.5" SATA SSD
• Maximum Single Volume Size* : 
  • 200 TB (for RAID 5 or RAID 6 groups only)
  • 108 TB
• Hot Swappable Drive : Yes
• 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 200TB.

External Ports

• RJ-45 1GbE LAN Port : 2 (with Link Aggregation / Failover support)
• RJ-45 10GbE LAN Port : 2 (with Link Aggregation / Failover support)
• USB 3.0 Port : 2
• Expansion Port : 1

PCIe

• PCIe Expansion : 2 x Gen3 x8 slots (x8 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

• Form Factor (RU) : 2U
• Size (Height x Width x Depth) : 88 mm x 482 mm x 724 mm
• Weight : 17.26 kg
• Rack Installation Support* : 4-post 19" rack (Synology Rail Kit - RKS1317)
• Notes : The rail kit is sold separately

Others

• System Fan : 80 mm x 80 mm x 4 pcs
• Fan Speed Mode : 
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
• Easy Replacement System Fan : Yes
• Power Recovery : Yes
• Noise Level* : 53.7 dB(A)
• Scheduled Power On / Off : Yes
• Wake on LAN / WAN : Yes
• Power Supply Unit / Adapter : 800 W
• Redundant Power Supply : Yes
• AC Input Power Voltage : 100 V to 240 V AC
• Power Frequency : 50/60 Hz, Single Phase
• Power Consumption* :
  • 288.49 W (Access)
  • 145.8 W (HDD Hibernation)
• British Thermal Unit :
  • 984.37 BTU/hr (Access)
  • 497.49 BTU/hr (HDD Hibernation)
• Notes : 
  • Power consumption is measured when it is fully loaded with HGST 1.8TB HUC101818CS4204 hard drive(s).
  • Noise Level Testing Environment: Fully loaded with Toshiba 600GB AL14SEB060N 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 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 :
  • FCC
  • CE
  • BSMI
  • EAC
  • KC
  • VCCI
  • RCM
• Warranty : 5 Years
• Notes : The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)

Environment : RoHS Compliant

Packaging Content

• Main Unit X 1
• Accessory Pack X 1
• AC Power Cord X 2
• Quick Installation Guide X 1

Optional Accessories

• DDR4 ECC RDIMM : D4RD-2666-16G*/D4RD-2666-32G
• Expansion Units : FX2421*/RX1217sas
• 2.5" SATA SSD : SAT5200
• 10GbE Network Interface Card : E10G18-T2/E10G18-T1/E10G17-F2
• Rail Kit Sliding : RKS1317
• VisualStation : VS960HD/VS360HD
• Surveillance Device License Pack
• Notes : 
  • It is required to use D4RD-2666-16G with identical memory modules of the same capacity and frequency. For more information, visit here.
  • Expansion Unit FX2421 can only be used with identical expansion units.

DSM Specifications

Storage Management

• Maximum Internal Volume Number : 256
• Maximum iSCSI Target Number : 256
• Maximum iSCSI LUN : 512
• iSCSI LUN Clone/Snapshot, Windows ODX : Yes
• SSD Read / Write Cache (White Paper) : Yes
• SSD TRIM : Yes
• RAID Group : Yes
• Supported RAID Type : 
  • RAID F1
  • Basic
  • JBOD
  • RAID 0
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
• RAID Migration : 
  • Basic to RAID 1
  • Basic to RAID 5
  • RAID 1 to RAID 5
  • RAID 5 to RAID 6
• Volume Expansion with Larger HDDs : 
  • RAID F1
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
• Volume Expansion by Adding a HDD : 
  • RAID F1
  • JBOD
  • RAID 5
  • RAID 6
• Global Hot Spare Supported RAID Type : 
  • RAID F1
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10

File Services

• File Protocol : CIFS/AFP/NFS/FTP/WebDAV
• Maximum Concurrent CIFS/AFP/FTP Connections : 8,000
• Maximum Concurrent CIFS/AFP/FTP Connections (with RAM expansion) : 10,000
• Windows Access Control List (ACL) Integration : Yes
• NFS Kerberos Authentication :  Yes
• Notes : 
  • Regarding data concerning tests with RAM expansion, all memory slots are installed with the maximum capacity of supported RAM.
  • During testing, the maximum number of SSDs supported by this model is installed in a RAID 5 configuration.

Account & Shared Folder

• Maximum Local User Accounts : 16,000
• Maximum Local Groups : 512
• Maximum Shared Folder : 512
• Maximum Shared Folder Sync Tasks : 32

High Availability

• Synology High Availability : Yes 

Log Center

• Syslog Events per Second : 3,000

Virtualization

• VMware vSphere 6 with VAAI : Yes
• Windows Server 2016 : Yes
• Windows Server 2019 : Yes
• Citrix Ready : Yes
• OpenStack : Yes

General Specifications

• Networking Protocols : SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV
• Supported Browsers : 
  • Google Chrome
  • Firefox
  • Microsoft Edge
  • Internet Explorer 10 onwards
  • Safari 10 onwards
  • Safari (iOS 10 onwards)
  • Google Chrome (Android 6.0 onwards)
• Supported Language : English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svenska, Nederlands, ???????, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, ?eský, ???????, ???, ???, ????, ????