Multi-Host NIC Architecture for Dense Server Thermal Constraints
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Solution Overview
Problem
Current server configurations face challenges in integrating additional Network Interface Controller (NIC) cards due to increased fan noise and thermal management issues, which disrupt signal transmission and complicate thermal solutions, especially in high-density server enclosures.
Innovation Solution
A multi-host NIC card is introduced that shares network resources among multiple compute nodes within a server enclosure, utilizing auxiliary cards with PCIe re-timers for connectivity and communication, connected to a single TOR switch port, enabling higher speeds and bandwidth while maintaining independent serviceability of each node.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If additional NIC cards are introduced to increase network bandwidth, then network performance is improved, but fan noise increases to maximum levels disrupting signal transmission
Solution Approach 1:
The patent combines multiple NIC card functions into a single multi-host NIC card that can serve multiple compute nodes simultaneously. This consolidation maintains high network bandwidth capability while reducing the number of physical NIC cards installed, thereby lowering fan speed requirements and minimizing noise disruption to signal transmission.
Solution Approach 2:
The multi-host NIC card is designed with universal functionality to support multiple compute nodes through shared resources. It can dynamically allocate network resources to different nodes while maintaining high bandwidth performance, eliminating the need for multiple dedicated NIC cards and reducing thermal management requirements.
2Productivity
If more compute nodes are integrated in the common space, then system density is improved, but thermal management becomes more difficult
Solution Approach 1:
The patent merges network resources for multiple compute nodes into a single multi-host NIC card, which consolidates heat generation from multiple individual NIC cards into one component. This approach maintains high system density while improving thermal management by reducing the total number of heat-generating components in the common space.
3Ease of operation
If standard PCIe NIC cards are used for each compute node, then independent serviceability is maintained, but device complexity increases
Solution Approach 1:
The patent segments the multi-host NIC card into separate host interface sections, with each section capable of being independently configured and serviced. This segmentation allows individual compute nodes to maintain independent serviceability while sharing the consolidated hardware resource, reducing overall system complexity without sacrificing operational independence.
Data Source
AI summary
Systems and method are provided. An illustrative system includes a first compute node having a first processing unit, a first compute node port, and a first peripheral component interconnect bus configured to carry data between the first processing unit and the first compute node port. The system may further include a multi-host device having a first multi-host port, where the first multi-host port is configured to connect with the first compute node port via a first peripheral component interconnect cable, a network port, where the network port is configured to receive a network interface of a networking cable, and processing circuitry configured to translate and carry data between the first multi-host port and the network port.