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Chelsio Update, March 2025

Chelsio announces Unified Storage Server (USS)

Chelsio announced its the launch of Unified Storage Server (USS) at World Summit AI MENA USS 4.0 sets a new standard in storage technology, offering a unified SAN and NAS solution with unmatched flexibility, performance, and ease of deployment.
•   Video post introducing Unified Storage Server (USS) 4.0, a unified SAN and NAS solution with unmatched flexibility, performance, and ease of deployment.
•   Technical Brief, highlighting features such as streamlined file serving, seamless backup, and efficient data replication — offering dependable, reliable, and scalable storage solutions.

Introducing Chelsio’s Latest Drivers for ESXi 8.x

We are excited to announce that Chelsio has released new drivers for ESXi 8.x. The ESXi 8.0 drivers are ideal for all data, storage and high-performance clustering applications, Chelsio adapters enable a unified fabric over a single wire by simultaneously running all unmodified IP sockets, Fibre Channel, and InfiniBand applications over Ethernet at line rate. The ESXi 8.0 drivers come with the following features:
•   Native Network (NIC) driver with SR-IOV support
•   iSCSI Offload Initiator Driver
•   iSER Offload Initiator Driver
•   NVMe-oF Offload Initiator Driver
These drivers enhance performance, scalability, and flexibility, reinforcing Chelsio's commitment to delivering high-performance networking solutions.

Chelsio Unveils Next-Gen Drivers for macOS 15 (Sequoia)

Chelsio announced driver support for macOS 15 (Sequoia). The network driver provides support for PCI Express Ethernet adapters based on the Chelsio Terminator (T6 and T5) ASIC. This driver provides support for Apple Silicon and Intel based machines. In addition, the adapters supported can be installed in a machine that supports PCIe slots like the Mac Pro and can also be installed in a Thunderbolt Expansion chassis. The macOS 15 (Sequoia) drivers come with the following features:
•   TCP segmentation offload (TSO/LSO)
•   MSI Interrupts
•   Gatekeeper and Large Receive Offload (LRO)

New Products

•   Chelsio announced the launch of Unified Storage Server (USS), which is a powerful turnkey solution for creating high-performance storage systems. It is an integrated solution that is best-of-breed in the market, providing an easy integration path for VARs and OEMs, and offers state-of-the-art performance and ease-of-use for end users.
•   Chelsio expands compatibility with the release of ESXi 8.x Drivers. These drivers are designed for deployment in virtualized datacenters, cloud service installations, and high-performance computing environments, Chelsio adapters bring a new level of performance metrics and functional capabilities to the computer networking industry.
•   Chelsio announced the release of L2 NIC driver for macOS 15. The driver is written using System Extensions and DriverKit. This technology replaces Kernel Extensions. System extensions run in user space as opposed to kernel space and hence provide enhanced security and reliability for the overall system.

Recent Publications

•   Chelsio published a Technical Brief detailing its advanced High-Performance Networking Solutions in a multi-host Red Hat OpenShift environment. Leveraging the Single Root I/O Virtualization (SR-IOV) feature of Chelsio adapters, the containers achieved bare-metal performance. With the solution already inboxed in OpenShift, it is easy to use.
•   Chelsio published benchmark results for containers in Kubernetes environment. Chelsio adapters delivered line-rate 98 Gbps throughput for the containers using standard plugins like Flannel, Multus and SR-IOV CNI. A maximum of 35% CPU was utilized on the host, highlighting the efficiency of Chelsio SR-IOV Network solution.
•   Chelsio published a benchmark report comparing NFS/TCP Server performance with Chelsio TCP Offload vs. regular L2 NIC in FreeBSD. A major benefit of the reduced CPU utilization enabled by Chelsio TCP Offload is radically reduced Capex for NFS/TCP server deployments. Specifically, ~30% of a typical ~$10k NFS filter head cost is saved by using Chelsio T6 TCP Offload which translates to ~$3K+ savings per head, not to mention the savings in the storage that is hosted by the head.
•   Chelsio published a 100G performance comparison of the NGINX Plus web server running with T6 Inline TLS/SSL offload and NVIDIA CX6 kTLS offload. 45% of a typical $5k server cost is saved by using Chelsio T6 instead of NVIDIA ConnectX-6 which translates to $2K+ savings per NGINX server. This can result in a major TCO reduction and boost ROI. These savings will be magnified as data centers transition to 200Gbps and 400Gbps speeds.
•   Chelsio published the performance results of NVMe/TCP using Chelsio T6 Offload solution for both Kernel and User modes. With more than 2.9 Million IOPs at the 4K I/O size, only an 8.69 μs delta latency between remote and local storage access, up to 50% CPU savings, exceptional jitter handling capabilities, the Chelsio solution proves to be the best-in-class at providing the next generation, scalable storage network over standard and cost-effective Ethernet infrastructure with an efficient processing path.
•   Chelsio published a paper on how the iWARP enabled T6 25G Unified Wire and Converged Network Adapters (CNAs) enable a low-cost, plug-and-play, high-performance Storage Spaces Direct (S2D) solution using standard Ethernet infrastructure.
•   Demartek published a benchmark of iSCSI offload vs. no offload for a class of real world applications. The results clearly demonstrated the necessity of offload for 100Gb iSCSI.

Recent Videos and Webinars

•   Introducing Unified Storage Server (USS) 4.0
•   Accelerating Kubernetes networking with Chelsio T6

In the Wild

DPU ASIC Embraces 400G Ethernet
Chelsio T7 DPU Line Launched for 400G Generation
Chelsio Unveils T7 DPU Family to Accelerate Range of Storage, Networking and Security Workloads
Best Practices for NVMe/TCP Deployment - A Chelsio and StorageIO BoF session at SDC 2022
"No-compromise" NVMe/TCP Deployment using Server Storage I/O Offload - A Chelsio and StorageIO BoF session at SDC 2021
ToE NVMeoF TCP Performance Line Boost Performance Reduce Costs
Comparative Evaluation of Ethernet RDMA Fabrics for NVMe-oF
We put the iWARP in NVMe-oF - A Chelsio presentation at NVMe Developer Days Conference 2019.
SMB Direct in Linux - A Microsoft presentation providing an overview and benchmarks for SMB kernel client in Linux.
NVMe/TCP needs good TCP network design - TCP Offload (TOE) devices could reduce NVMe/TCP latency.
NVMe Over TCP Will Take Time to Eclipse RDMA
NetApp All-flash filers deliver record breaking performance - Using AFF A800 arrays and Chelsio 100GbE iWARP RDMA adapters.
400 Gbps Disk-to-Disk WAN file transfer - NASA HECN team demonstrates using NVMe-oF and Chelsio iWARP RDMA.
NFS/RDMA over iWARP - A Chelsio Presentation at SDC.
NetApp A800 benchmark - Benchmark results using NetApp A800 all-flash storage systems having T6 adapters.
NetApp long distance replication using T6 and iWARP RDMA.
Long distance replication using T6 and iWARP RDMA on Windows.

Case Studies

Regional Library System Simplifies Their Data Center with a Windows Server 2016 Solution - S2D deployment using Chelsio iWARP RDMA.
Chelsio Storage over IP Enable Data Infrastructures - Addressing the various application and workload demands by enabling more robust, productive, effective and efficient data infrastructures.

Learn More

•   See a complete list of recent Chelsio newsletters here.
•   See a complete list of recent Chelsio white papers here.
•   See a complete list of Chelsio performance reports here.
•   See a complete list of Competitive Analysis reports here.
•   See a complete list of Case Studies here.
•   See a complete list of Videos here.
•   See a complete list of Webinars here.
•   See a complete list of Blogs here.

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How to Order?

 
Chelsio Adapters and Accessories can now be ordered from the following Webstores:
 
•   Chelsio Online Store
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Latest Software and Drivers

 

•   Unified Storage Server (USS) v4.0
•   Unified Wire v5.3.0.33 for VMware ESXi 8.0
•   Network Driver v1.25.0 for macOS 15 (Sequoia)
•   Unified Wire v3.19.0.3 for Linux, OpenPOWER and ARM
•   Unified Boot and PXE Option ROM and Flash Utility v2.7.0.0 for DOS
•   Unified Wire v5.3.0.33 for VMware ESXi 7.0
•   Unified Wire v6.16.18.0_WIN_006.0.108 for Windows
•   FCoE Initiator v2.0.9.0_WIN_006.0.107 for Windows
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