FlashStation FS6400

Description

Hardware Specifications

CPU

CPU ModelIntel Xeon Silver 4110 x 2
 CPU Architecture64-bit
 CPU Frequency8-Core 2.1 (base) / 3.0 (turbo) GHz
 Hardware Encryption Engine (AES-NI)

Memory

System Memory32 GB DDR4 ECC RDIMM
 Memory Module Pre-installed32 GB (16 GB x 2)
 Total Memory Slots16
 Memory Expandable up to512 GB (32 GB x 16)
 Notes
  • 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.
  • 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.

Storage

Drive Bays24
 Maximum Drive Bays with Expansion Unit48 (RX1217sas) / 72 (RX2417sas)
 Compatible Drive Type* (See all supported drives)
  • 2.5″ SAS HDD
  • 2.5″ SAS SSD
  • 2.5″ SATA SSD
 Maximum Internal Raw Capacity184.32 TB (7.68 TB drive x 24) (Capacity may vary by RAID types)
 Maximum Raw Capacity with Expansion Units552.96 TB (184.32 TB + 7.68 TB drive x 48) (Capacity may vary by RAID types)
 Maximum Single Volume Size*
  • 200 TB (for RAID 5 or RAID 6 groups only)
  • 108 TB
 Hot Swappable Drive
 Notes
  • “Compatible drive type” indicates the drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay.
  • The maximum raw capacity is not limited by the maximum single volume size. Synology NAS models may utilize capacities over the maximum single volume size as long as each volume created is below the limit. (Learn more)
  • Each internal volume (may consist of multiple drives) is expandable up to 200TB.

External Ports

RJ-45 1GbE LAN Port2 (with Link Aggregation / Failover support)
 RJ-45 10GbE LAN Port2 (with Link Aggregation / Failover support)
 USB 3.0 Port2
 Expansion Port1

PCIe

PCIe Expansion2 x Gen3 x8 slots (x8 link)
 Add-In-Card SupportPCIe Network Interface Card (Learn more)

File System

Internal Drives
  • Btrfs
  • EXT4
 External Drives
  • Btrfs
  • EXT4
  • EXT3
  • FAT
  • NTFS
  • HFS+
  • exFAT*
 NotesexFAT 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
 Weight17.26 kg
 Rack Installation Support4-post 19″ rack (Synology Rail Kit – RKS1317)
 NotesThe rail kit is sold separately

Others

System Fan80 mm x 80 mm x 4 pcs
 Fan Speed Mode
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
 Easy Replacement System Fan
 Power Recovery
 Noise Level*53.7 dB(A)
 Scheduled Power On / Off
 Wake on LAN / WAN
 Power Supply Unit / Adapter800 W
 Redundant Power Supply
 AC Input Power Voltage100 V to 240 V AC
 Power Frequency50/60 Hz, Single Phase
 Power Consumption*288.49 W (Access)
145.8 W (HDD Hibernation)
 British Thermal Unit984.37 BTU/hr (Access)
497.49 BTU/hr (HDD Hibernation)
 Notes
  • Power consumption is measured when it’s 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 Temperature0°C to 35°C (32°F to 95°F)
 Storage Temperature-20°C to 60°C (-5°F to 140°F)
 Relative Humidity5% to 95% RH

Certification

  • EAC
  • VCCI
  • RCM
  • KC
  • FCC
  • CE
  • BSMI

Warranty

5 Years
 NotesThe 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

  • D4RD-2666-16G DDR4 ECC RDIMM*
  • D4RD-2666-32G DDR4 ECC RDIMM
  • Surveillance Device License Pack
  • Expansion Unit: RX1217sas X 2
  • Expansion Unit: RX2417sas X 2
  • Synology Ethernet Adapter E10G17-F2
  • Synology Ethernet Adapter E10G18-T1
  • Synology Ethernet Adapter E10G18-T2
  • Synology Rail Kit Sliding – RKS1317
  • VS360HD
  • VS960HD
 NotesIt is required to use D4RD-2666-16G with identical memory modules of the same capacity and frequency. For more information, visit here.

DSM Specifications(Software Specs.)

 

Storage Management

 Maximum Internal Volume Number256
 Maximum iSCSI Target Number256
 Maximum iSCSI LUN512
 iSCSI LUN Clone/Snapshot, Windows ODX
 SSD Read / Write Cache (White Paper)
 SSD TRIM
 RAID Group
 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 ProtocolCIFS/AFP/NFS/FTP/WebDAV
 Maximum Concurrent CIFS/AFP/FTP Connections8,000
 Maximum Concurrent CIFS/AFP/FTP Connections (with RAM expansion)10,000
 Windows Access Control List (ACL) Integration
 NFS Kerberos Authentication

Account & Shared Folder

 Maximum Local User Accounts16,000
 Maximum Local Groups512
 Maximum Shared Folder512
 Maximum Shared Folder Sync Tasks32

High Availability

 Synology High Availability

Log Center

 Syslog Events per Second3,000

Virtualization

 VMware vSphere 6 with VAAI
 Windows Server 2016
 Citrix Ready
 OpenStack

General Specifications

 Networking ProtocolsSMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV
 Supported Browsers
  • Chrome
  • Firefox
  • Edge
  • Internet Explorer 10 onwards
  • Safari 10 onwards
  • Safari (iOS 10 onwards)
  • Chrome (Android 6.0 onwards)
 Supported LanguageEnglish, 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

Add-on Packages view the complete package list

 

Antivirus by McAfee (Trial)

 

Central Management System

 

Synology Chat

 Maximum Users6,000
 Notes
  • The number of concurrent HTTP connections for Synology Chat was configured to the maximum.
  • CPU and RAM usage were both under 80% when the number of maximum users was reached.
  • For tested models with expandable memory, the maximum amount of RAM was installed.

Document Viewer

 

exFAT Access (Optional)

 

Synology MailPlus / MailPlus Server

 Free Email Accounts5 (Licenses required for additional accounts)
 Maximum Number of Concurrent Users2,200
 Maximum Server Performance5,721,000 emails per day, approx. 174GB
 Notes
  • The CPU and RAM usage were both under 80% when testing the maximum number of concurrent users.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • The performance of the mail system will slightly decrease in high-availability mode due to data synchronization between the two servers.
  • Functions that were enabled in all of the tests above: anti-spam, anti-virus, DNSBL, greylist, content scan, full-text search (English only).

Snapshot Replication

 Maximum Snapshots per Shared Folder1,024
 Maximum of System Snapshots65,536

Surveillance Station

 Maximum IP cam (Licenses required)128 (including 2 Free License) (See All Supported IP Cameras)
 Total 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)
 Total 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)
 Total FPS (MJPEG)*1260 FPS @ 720p (1280×720)
770 FPS @ 1080p (1920×1080)
560 FPS @ 3M (2048×1536)
400 FPS @ 5M (2591×1944)
 NotesSurveillance Station throughput is tested with Axis network camera, using continuous recording with live view from Surveillance Station and motion detection by camera. Live view and recording are sharing the same stream from the camera.

Synology Drive

 Recommended Number of Hosted Files5,000,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above)
 Recommended Number of Concurrent Sync Clients2,000 (the number of connections that can be maintained when the recommended number of hosted files was reached)
 Notes
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • Exceeding the limits above may result in longer response time in file operations.
  • Btrfs file system and non-encrypted shared folders were used during the aforementioned testing.

Synology Office

 Maximum Users3,400
 Notes
  • Multiple files were opened for testing and each file was edited by 30 users simultaneously.
  • CPU and RAM usage were both under 80% when the number of maximum users was reached.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM

Virtual Machine Manager

 Recommended Virtual Machine Instances32 (Learn more)
 Recommended Virtual DSM Number (Licenses required)32 (including 1 Free License)
 Notes
  • Virtual Machine Manager is not supported on hosts running Synology High Availability.
  • The specifications vary depending on system configuration and memory size.

VPN Server

 

 Maximum Connections40

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