How can you provide fast, reliable, and cost-effective connectivity in the data center with predictable performance and investment protection? HPE M-series SN21M Ethernet Switch is ideal for modern server and storage networks. Supporting port speeds of 1, 1, 25, 4, 5, and 1 GbE, they deliver predictable performance and zero packet loss at line-rate. Its unique port counts and half-width form factor allows up to two HPE SN21M Switch units to be deployed side-by-side for increased density and high-availability in a single rack unit making it the perfect top-of-rack (ToR) switch. Storage-specific features combined with an efficient design provides enterprise-level performance with attractive economics and outstanding ROI. Networks built on Hewlett Packard Enterprise M-series switches are fast, reliable, and scalable while also being affordable. This makes these switches ideal for storage, hyperconverged, financial services, Big Data, and media and entertainment deployments. Unleash Storage Performance and Improve Flash ROI The HPE M-series SN21M Ethernet Switch is a half-width 1/25 GbE and 4/1 GbE Ethernet switch designed for primary, secondary storage, and hyper converged infrastructures. This ToR solution packs 18-ports of 1/25 GbE and 4-ports of 4/1 GbE that can be reconfigured with breakout cables. It delivers low latency for 1/25 GbE and 4/1 GbE switching, featuring a robust implementation of data, control and management planes, and offers a compact form factor and low power consumption. It provides ultra-low latency of under 3 ns port-to-port. This is advantageous for flash storage which has moved latency bottlenecks from storage access to the network, as well as for the burst nature of today’s software-defined and cloud data centers traffic. The buffering architecture provides superior micro-burst absorption for applications that experience data surges across different parts of the network at random intervals. Ideal for Demanding Enterprise Data Centers and Storage Environments The HPE M-series SN21M Switch provides a flexible combination of ports, allowing for great flexibility, efficiency, and simplification of scale-out environments, saving on total cost of ownership. Unique port configurations allow high-speed rack connectivity to the server at 1/1 GbE or 25 GbE speeds with 4/1 GbE uplink ports that allow for a variety of blocking ratios that suit specific application requirements. Enhanced for RDMA over Converged Ethernet (RoCE), full buffer utilization, and zero packet loss combined into a small form factor with low latency make it the ideal switch for the Ethernet storage fabric (ESF). Enhanced for Storage and Hyper Converged Environments The HPE M-series SN21M Switch provides high port density in a single rack unit, allowing for increased capacity and efficiency, simplifying scale-out environments and saving on total cost of ownership. With its unique half-width form factor and port counts, this Ethernet switch allows for two HPE SN21M Switch units to be deployed side-by-side allowing for increased density and high-availability in a single rack unit, making it the ideal ToR switch. Designed to use less electric power than competing switches, the HPE SN21M provides one of the industry’s lowest power draws, producing less heat than competing products and reducing operating expenses. Distributed storage, hyper-converged, analytic, and database solutions require the ability to scale out without compromising performance or high availability. The SN21M is a great fit for these environments with a mix of 1/25 GbE and 4/1 GbE ports that are designed for zero packet loss. High throughput, low latency, and active-active network switching capabilities are crucial when deploying clustered servers and storage. It can deliver connectivity to many clients plus 4/1GbE connectivity to selected servers, storage systems or network uplinks, and all with low latency. Superior Performance with Future-proof Growth The HPE M-series SN21M Switch provides predictability within a storage network with consistent throughput regardless of the packet size being transferred, or the mixture of ports which are sending data, even within mixed speed environments. It provides wire-rate performance with zero packet loss across frame sizes and avoids any negative impact on applications that could occur with frame loss, in addition to transferring data across both Layer 2 and Layer 3 networks. Can be deployed to support 1/1 GbE ports and designed to evolve over time to support 25 GbE speeds with uplink ports at 4/1 GbE speeds. This helps protect your network investment and allows for implementing significant speed upgrades to the architecture over time.