Multi-Host Solutions


Mellanox's Multi-Host technology provides high flexibility and major savings in building next generation, scalable Cloud, Web 2.0 and high-performance data centers. The technology enables designing and building new scale-out heterogeneous compute and storage racks with direct connectivity between compute elements, storage elements and the network, better power and performance management, while achieving maximum data processing and data transfer at minimum capital and operational expenses.

Mellanox's Multi-Host technology enables connecting multiple compute or storage hosts into a single interconnect adapter by separating the adapter PCIe interface into multiple and independent PCIe interfaces. Each interface is connected to a separate host with no performance degradation. Mellanox Multi-Host technology is available today in the company’s line of ConnectX®-4 and higher 10/25/50/100 Gigabit Ethernet adapters ICs, and in OCP-based boards as part of Facebook’s recently announced Yosemite platform.

Multi-Host technology within ConnectX®-4 and higher offer four fully-independent PCIe buses, lowering total cost of ownership in the data center by reducing CAPEX requirements from four cables, NICs, and switch ports to only one of each, and by reducing OPEX by cutting down on switch port management and overall power usage.

Each host can be active or inactive at any time, independent of the other hosts, and receives bandwidth of its own. Bandwidth is split between the hosts, either evenly (default) or based on configurable differentiated Quality of Service (QoS), depending on the data center’s needs.

The Multi-Host solution enables higher system performance by connecting directly to each of the compute or storage elements, hence reducing the data access time and overall applications run time.

Multi-Host technology features uncompromising independent host management, with full independent
NC-SI/MCTP support to each host and to the NIC. IT managers can remotely control the configuration and power state of each host individually, such that management of one host does not affect host traffic performance or the management of the other hosts, guaranteeing host security and isolation. To further lower the total cost of ownership, ConnectX®-4 and higher support management of the multiple hosts using a single BMC, with independent NC-SI/MCTP management channels for each of the managed hosts.

Multi-Host also supports a heterogeneous data center architecture; the various hosts connected to the single adapter can be x86, Power, GPU, ARM, FPGA or memory, thereby removing any limitations in passing data or communicating between compute elements.

  • Maximize data center Return on Investment (ROI)
  • Lower Total Cost of Ownership (TCO)
  • Reduce power consumption for Multi-Host designed servers
  • Customize bandwidth per host based on data center's needs
  • No performance degradation
  • Guaranteed host security and isolation
  • 2 or 4 fully-independent PCIe buses
  • Configurable differentiated Quality of Service (QoS)
  • Full independent NC-SI/MCTP support to each host and to the NIC
  • Management of the multiple hosts using a single BMC
  • RoHS compliant