Storage System Representative Node Resource Status Management
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Solution Overview
Problem
Current storage systems face challenges in managing resource status information efficiently, as the collection method requires large disk capacity for representative nodes, while distributed storage methods increase CPU load due to frequent inquiries from management software.
Innovation Solution
A storage system with a representative node and general nodes, where resource status information is stored in both local and summary databases, allowing the representative node to decide the acquisition source based on requests, reducing disk capacity and CPU load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If operational information of all storage nodes is retained in the representative node (collection method), then the operational information can be centrally managed, but the disk capacity required for the representative node becomes large
Solution Approach 1:
The patent divides the storage system into representative nodes and general nodes, with each general node storing its own operational information locally. This segmentation prevents the need for a single representative node to store all operational information, thereby reducing the disk capacity requirement for representative nodes while maintaining centralized management capabilities.
2Quantity of substance
If operational information is retained in each storage node (distributed storage method), then the disk capacity required for the representative node is reduced, but the load of the CPU of the entire system increases due to frequent inquiries
Solution Approach 1:
The patent implements local quality by allowing general nodes to store and manage their own operational information locally. This enables the representative node to acquire operational information directly from specific general nodes rather than querying all nodes, thereby reducing the overall CPU load while maintaining distributed storage benefits.
3Adaptability or versatility
If operational information is retained in each storage node, then distributed storage is achieved, but the number of queries to general nodes increases when acquisition destination is always the general node
Solution Approach 1:
The patent introduces dynamic decision-making for the representative node to determine the acquisition destination of operational information. The representative node can dynamically switch between acquiring information from general nodes or from its own storage based on system conditions, request types, and data availability, thereby optimizing response time while maintaining distributed storage capabilities.
Data Source
AI summary
According to one embodiment, a storage system includes a representative node and a plurality of general nodes including a plurality of resources. Each of the general nodes stores resource status information indicating respective statuses of the plurality of resources in a first storage unit thereof. The representative node stores resource status information collected from the plurality of general nodes in a second storage unit thereof, decides whether to acquire the resource status information from the first storage unit of the general node or to acquire the resource status information from the second storage unit based on a received request, and transmits the resource status information acquired from a decided acquisition destination to an issuing source of the request.