Gen 4 2U ION appliance 2U NVMe storage array
- Technology
- GPGPU-HPC
- Partner
- One Stop Systems
The FSAn-2D Ion Accelerator is a high-performance 2U flash storage array designed to deliver shared NVMe storage with very low latency and high throughput. It combines enterprise hardware with Ion Accelerator software to support demanding workloads such as databases, analytics, and other mission-critical applications. The platform provides 24 hot-swappable 2.5-inch NVMe drive bays in a compact rackmount chassis, enabling dense flash deployment and straightforward capacity expansion. Flexible connectivity options support Fibre Channel, Ethernet-based iSCSI, InfiniBand, and NVMe over Fabrics environments. The array is engineered for reliability with redundant power supplies, health monitoring, and high-availability deployment options. Its architecture is intended to provide performance close to direct-attached NVMe while remaining easy to integrate into existing data centre infrastructure.

Range features
A high level overview of what this range offers
- Ultra-low latency shared NVMe storage – Ion Accelerator software is designed to minimise overhead and deliver near bare-metal flash performance for latency-sensitive workloads.
- Compact 2U rackmount footprint – High flash density in a space-efficient chassis helps maximise valuable rack space in enterprise and industrial deployments.
- 24 hot-swappable NVMe SSD bays – Supports flexible scaling with front-accessible 2.5-inch NVMe drives for easier maintenance, replacement, and future expansion.
- Broad host connectivity – Supports Fibre Channel, iSCSI, InfiniBand, and NVMe over Fabrics options for integration into a wide range of SAN and clustered environments.
- High availability support – Mirrored paired deployments with synchronous replication help maintain service continuity for critical applications.
- Redundant power and monitored hardware – Redundant PSUs and built-in health monitoring improve resilience and simplify proactive maintenance.
- Enterprise-ready performance – Built to support demanding data-intensive workloads that require high IOPS, strong throughput, and consistent response times.
Downloads
for Gen 4 2U ION appliance 2U NVMe storage array
What’s in this range?
All the variants in the range and a comparison of what they offer
Specification | Details |
Form factor | 2U rackmount |
Drive bays | 24 x 2.5-inch hot-swap NVMe bays |
Maximum capacity | Up to 307 TB |
Software | Ion 6.1.0 Storage Accelerator Software |
Latency | Sub 100 μs |
Performance | Over 5M IOPS (4KB) |
High availability | Synchronous replication option |
RAID support | RAID 0, 5, 6, 10 |
CPU support | Dual Intel Xeon Scalable processors or AMD EPYC 7002/7003 support |
Network options | 4 x 100Gbps Ethernet, 4 x 100Gbps InfiniBand, 8 x 32Gbps Fibre Channel, 1 x 1Gbps IPMI |
NVMe-oF support | NVMeOF-TCP/IP and RDMA |
Power | 1600W 1+1 redundant power supplies with PMBus |
Cooling | 4 heavy duty 8cm PWM fans with monitoring |
IPMI | IPMI 2.0 with virtual media over LAN and KVM over LAN |
FAQs
for Gen 4 2U ION appliance 2U NVMe storage array
Ion Accelerator is a flash storage software platform that manages the array’s NVMe SSDs with minimal overhead. It is designed to provide a highly optimised block storage engine for very low latency, high throughput, and strong data integrity, helping networked hosts access shared flash storage with performance close to local NVMe.
The FSAn-2D provides 24 hot-swappable 2.5-inch NVMe drive bays and supports up to 307 TB of capacity, depending on the installed SSD configuration. This makes it suitable for organisations that need both high performance and scalable flash density in a compact 2U footprint.
The platform supports high availability through a mirrored two-array configuration with synchronous replication. If one array becomes unavailable, the paired system can continue serving data. Redundant power supplies and system monitoring also help reduce single points of failure within each individual unit.
The FSAn-2D supports multiple host connectivity options, including Fibre Channel up to 32 Gbps, Ethernet/iSCSI up to 100 Gbps, InfiniBand up to 100 Gbps, plus NVMe over Fabrics using TCP/IP and RDMA. This flexibility allows deployment in FC SAN, IP SAN, and high-performance clustered environments.
This array is designed for ultra-low latency and very high throughput. According to the product datasheet, the platform supports sub 100 microseconds latency and over 5 million IOPS (4KB), making it well suited to demanding workloads such as databases, analytics, and other latency-sensitive enterprise applications.
The FSAn-2D includes built-in system health monitoring along with IPMI-based out-of-band management capabilities. Administrators can track hardware status, monitor operational health, and manage storage resources through the platform’s management tools to support proactive maintenance and reliable day-to-day operation.







