Integrated Storage Switching Chassis Design
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Solution Overview
Problem
Conventional networked storage systems face performance bottlenecks due to bandwidth limitations in communication links between storage devices and network switches, especially with the advent of faster memory technologies like flash memory, and existing solutions either increase costs or reduce switch port availability.
Innovation Solution
An integrated networked storage and switching apparatus that combines flash memory controllers, a system controller, and a network switch within a common chassis, sharing a power supply and implementing communication links as traces on a printed circuit board, allowing for differentiated traffic prioritization and Quality of Service policies between storage and network packets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If higher capacity Ethernet cables are used between storage device and network switch, then bandwidth is improved, but system cost significantly increases
Solution Approach 1:
The patent merges the network switch and storage device into a single integrated apparatus, eliminating the need for external Ethernet cables between separate devices. The network switch and flash memory devices are coupled internally through communication buses and interfaces within the same chassis, thereby achieving high bandwidth without incurring the cost of higher-capacity external cabling.
2Speed
If the number of cables between network switch and storage device is increased, then bandwidth is improved, but switch port availability decreases and system cost increases
Solution Approach 1:
By integrating the network switch and storage device into one apparatus, the patent eliminates the need for multiple external cables and switch ports. The internal coupling through communication buses provides dedicated high-bandwidth pathways without consuming external switch ports, thereby maintaining full switch port availability for server connections while achieving improved bandwidth for storage operations.
3Device complexity
If network switch and storage device are integrated within common chassis, then system complexity is reduced, but device functionality is combined
Solution Approach 1:
The integrated apparatus is segmented into distinct functional modules: network switch module with packet processing logic, storage module with flash memory devices, and control module with system controller. Each module maintains independent functionality while being coupled through standardized communication interfaces, allowing the system to reduce complexity through integration while preserving adaptability through modular design.
Data Source
AI summary
An integrated networked storage and switching apparatus comprises one or more flash memory controllers, a system controller, and a network switch integrated within a common chassis. The integration of storage and switching enables the components to share a common power supply and temperature regulation system, achieving efficient use of available space and power, and eliminating added complexity of external cables between the switch a storage devices. Additionally, the architecture enables substantial flexibility and optimization of network traffic policies for both network and storage-related traffic.