Modular Fabric Modules for Upgradeable Server Connectivity
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Solution Overview
Problem
Existing blade systems face limitations in upgrading connectivity without replacing the entire chassis, as traditional backplanes or midplanes are soon outstripped by newer computer capabilities, and serviceability is hindered by the need to remove interconnect components for maintenance.
Innovation Solution
The modular computer system employs replaceable fabric modules that provide routing between node modules, allowing for flexible and upgradeable connectivity without replacing the chassis, and enables independent servicing and upgrading of blades and fabric modules without impeding airflow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional backplanes or midplanes are used for inter-blade connectivity, then the system provides stable and reliable connectivity, but the entire chassis must be replaced when connectivity capabilities become outdated
Solution Approach 1:
The interconnect system is segmented into separate fabric modules that can be independently replaced. Each fabric module is a discrete component that provides connectivity functions, allowing the connectivity layer to be upgraded without replacing the entire chassis or blade servers.
Solution Approach 2:
The fabric modules are extracted as separate, removable components from the chassis infrastructure. This extraction allows the connectivity functionality to be independently managed, installed, and upgraded as standalone units rather than being permanently integrated into the chassis.
2Ease of repair
If interconnect components are integrated into the chassis structure, then the system provides unified management, but serviceability is hindered by the need to remove interconnect components for maintenance
Solution Approach 1:
The system is divided into independently serviceable modules (fabric modules and blades). This segmentation allows maintenance personnel to access and replace fabric modules without disrupting other system components, improving serviceability while maintaining unified system management.
Solution Approach 2:
Fabric modules are designed as extractable components that can be removed and replaced independently. This extraction design enables easy servicing of connectivity components without requiring removal of blades or other chassis components, significantly improving ease of repair.
3Adaptability or versatility
If high-speed connectivity is provided through dedicated interconnect components, then the system achieves high performance, but costs increase by requiring always-available high-speed connectivity
Solution Approach 1:
The fabric module system enables dynamic allocation and configuration of connectivity resources. Different fabric modules can be installed to match varying connectivity requirements, allowing the system to adapt its connectivity capacity to actual needs rather than provisioned maximum capacity, thus optimizing resource utilization.
Solution Approach 2:
The system allows changing connectivity parameters by swapping fabric modules with different capabilities. This enables the connectivity infrastructure to be scaled and configured to match workload requirements, providing high-speed connectivity only when and where needed rather than uniformly across all configurations.
Data Source
AI summary
A chassis is configured to hold at least one horizontal row of node modules and a fabric module. The fabric module can be positioned above or below the row so that it can communicatively couple two or more node modules. Each of the node modules and the fabric modules can be inserted into and removed from the chassis longitudinally.