Synology FlashStation FS6400 24-Bay NAS Enclosure
Description
The Synology FlashStation FS6400 is a high-performance, 2 U all-flash NAS designed to accelerate I/O-intensive and latency-sensitive workloads. Powered by dual Intel® Xeon® Silver CPUs, ample DDR4 ECC RAM, and 24 hot-swappable 2.5″ drive bays, it delivers over 240,000 iSCSI 4 KB random write IOPS and seamless scale-out to meet growing enterprise demands.
Hardware Specifications
| Specification | Details |
|---|---|
| CPU | 2 × Intel® Xeon® Silver 4110, 8-core 2.1 GHz (base) / 3.0 GHz (turbo) |
| System Memory | 32 GB DDR4 ECC RDIMM (16 GB × 2), 16 slots (expandable to 512 GB) |
| Drive Bays | 24 × hot-swappable 2.5″ SAS/SATA HDD/SSD |
| Maximum Raw Capacity | 184.32 TB (7.68 TB × 24); scales to 552.96 TB with up to 2 × RX1217sas expansion units |
| RAID Modes | 0, 1, 5, 6, 10, Basic, F1 |
| Network Interfaces | 2 × 10 GbE RJ-45; 2 × 1 GbE RJ-45 (Link Aggregation & failover) |
| PCIe Expansion | 2 × PCIe 3.0 ×8 slots (×8 link) for NICs or Fibre Channel HBAs |
| USB Ports | 2 × USB 3.2 Gen 1 Type-A |
| Form Factor | 2 U rackmount (requires RKS1317 rail kit, sold separately) |
| Dimensions (H × W × D) | 88 × 692 × 430.5 mm |
| Weight | 14.9 kg |
| Power Supplies | Dual redundant, hot-swappable |
| Supported Expansion | Up to 72 bays via 2 × FX2421 SAS expansion units |
Key Software & Features
- Synology DiskStation Manager (DSM)
Unified, browser-based OS with an extensive ecosystem for file services, backup, virtualization, surveillance, and collaboration. - Btrfs Next-Generation File System
Metadata mirroring, inline compression, checksums, file self-healing, and near-instant snapshots safeguard data integrity and simplify recovery. - Virtualization & Cloud Integration
VMware VAAI, Windows ODX, Citrix Xen, and OpenStack® Cinder support; Virtual Machine Manager lets you run VMs and containers directly on the FS6400. - High-Performance iSCSI Storage
Over 240,000 4 KB random write IOPS and multi-LAN design with link aggregation and failover for reliable block-level performance. - Snapshot Replication & Backup Suites
Schedule point-in-time snapshots for shared folders and LUNs; Active Backup Suite and Hyper Backup deliver agentless, multi-version protection with global deduplication. - Hybrid Cloud & Cloud Sync
Two-way synchronization with public clouds (Google Drive, Dropbox, OneDrive) and Synology C2, with on-premises caching of hot data. - Central Management & Monitoring
Central Management System (CMS) for group policy enforcement and batch updates; Active Insight offers cloud-based fleet analytics and proactive alerts.
Performance & Scalability
Sustains over 240,000 iSCSI 4 KB random write IOPS for demanding database and OLTP environments.Online scale-out from 24 to 72 bays without service interruption using FX2421 expansion units.Two PCIe slots accommodate 10/25/40 GbE or Fibre Channel add-on cards for future bandwidth needs.
Ideal Use Cases
Multimedia post-production and rendering farms requiring low-latency storage.
Virtual machine storage for dense VM and container deployments.
High-throughput database and online transaction processing (OLTP) clusters.
Enterprise backup targets and disaster recovery repositories.
Mission-critical file and block storage with sub-millisecond response times.
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