Hot Swap Management Device for Automatic Hardware Address Assignment
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Solution Overview
Problem
Current hardware resource expansion systems require manual adjustment of hardware addresses for PCIE slots or additional circuits, leading to complex designs and reduced management efficiency in data centers.
Innovation Solution
A hardware resource expansion system that includes a server, auxiliary signal cables, PCIE transmission cables, and a hot swap management device with a bus buffer, hot swap switch, and controller, which automatically assigns hardware addresses to hardware expansion devices connected via PCIE buses, allowing for seamless integration and control without manual intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual adjustment of hardware addresses is used for PCIE slots, then hardware devices can be controlled by the same SMBus, but hardware design becomes more complicated and labor burden increases
Solution Approach 1:
The system enables automatic hardware address assignment through the controller that autonomously configures addresses for expansion devices without requiring manual intervention. The controller detects connected devices and assigns addresses automatically, making the system self-configuring and eliminating manual address setting operations.
Solution Approach 2:
The patent introduces an intermediary controller that mediates between the SMBus and expansion devices. This controller handles the complex address assignment task, shielding the user from complexity while ensuring reliable device control through standardized address management.
2Reliability
If manual adjustment of hardware addresses is used for PCIE slots, then hardware devices can be controlled by the same SMBus, but management efficiency of data center is reduced
Solution Approach 1:
The automatic address assignment system eliminates manual configuration steps, allowing rapid deployment and management of hardware resources. The controller autonomously manages address allocation, enabling faster provisioning and reconfiguration of expansion devices, thereby improving data center management efficiency.
Solution Approach 2:
The system performs address assignment automatically during device initialization or connection events, preparing the hardware configuration in advance without requiring manual intervention later. This preliminary automated configuration accelerates the overall management process.
3Ease of operation
If additional circuits are added to set up hardware addresses, then PCIE slots can be managed, but hardware design becomes more complicated
Solution Approach 1:
The controller serves multiple functions: it manages SMBus communication, performs automatic address assignment, and coordinates expansion device operations. This multi-functional approach eliminates the need for separate dedicated circuits for address configuration, simplifying the overall hardware design while maintaining ease of operation.
Solution Approach 2:
The patent replaces manual mechanical address setting (pin adjustments) with an automated electronic address assignment system. The controller electronically configures addresses through software/firmware logic, eliminating the need for physical pin adjustments and reducing hardware complexity.
Data Source
AI summary
A hot swap management device includes a bus buffer, a hot swap switch, and a controller. The bus buffer is selectively coupled to a host system management bus of a server. The hot swap switch is coupled to the bus buffer and a hardware expansion device. The controller is coupled to the bus buffer and the hot swap switch. When the hot swap management device is coupled to a board system management bus of the server, the controller assigns a hardware address to the bus buffer. A computational unit of the server controls the hardware expansion device through the host system management bus according to the hardware address.