Storage Resource Management for Concurrent Fault Handling
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Solution Overview
Problem
Existing storage apparatuses face challenges in efficiently managing and allocating resources to cope with multiple abnormalities, as preparing spare drives with equivalent performance increases costs, and using drives with different performances can lead to difficulties in handling subsequent abnormalities.
Innovation Solution
A resource management apparatus that determines a surplus resource introduction plan to handle abnormalities in storage systems by detecting faults and calculating plans that can concurrently address likely occurring issues, using a processor unit to manage and allocate resources based on management information and fault tables.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If spare drives with equivalent performance to original drives are prepared, then the ability to cope with drive faults is improved, but the cost increases
Solution Approach 1:
The patent changes the performance parameters of spare drives from being equivalent to original drives to being lower-performance drives. This parameter change allows using cheaper drives while still maintaining the ability to cope with faults, though with some performance trade-offs that the system manages through resource allocation strategies.
Solution Approach 2:
The patent employs cheaper drives as spare resources that can be used to replace faulty drives. These lower-performance spare drives serve as disposable or temporary replacements that restore system functionality without requiring the same performance level as the original high-performance drives.
2Quantity of substance
If drives with different performances are used to decrease cost, then the cost is reduced, but the ability to handle subsequent abnormalities is compromised
Solution Approach 1:
The patent creates a universal resource pool where drives of different performance levels can serve multiple purposes. The resource management apparatus dynamically allocates any available drive (regardless of performance level) to replace faulty drives, making the spare drive pool universally applicable to various fault scenarios rather than requiring specific high-performance spares for each situation.
Solution Approach 2:
The patent implements dynamic resource allocation where the system adaptively manages drives of different performance levels based on current system needs and fault conditions. The resource management apparatus dynamically determines which spare drive to use for replacement, optimizing the use of available resources rather than following static allocation rules.
3Reliability
If multiple spare drives are prepared to cope with multiple abnormalities, then the reliability is improved, but the device complexity increases
Solution Approach 1:
The patent implements a self-service resource management system where the resource management apparatus automatically detects faults, selects appropriate spare drives, and performs replacements without requiring complex manual intervention or sophisticated management protocols. The system serves itself by autonomously managing the spare drive pool and making allocation decisions based on current system state.
Data Source
AI summary
A storage apparatus includes a plurality of resources including a plurality of types of surplus resources, determines a surplus resource introduction plan used for coping with abnormalities, and controls allocation of the surplus resources according to the determined introduction plan. The storage apparatus includes a processor. The processor detects an abnormality associated with the resource of the storage apparatus, calculates one or more surplus resource introduction plans capable of coping with the abnormality on the basis of management information of the resource of the storage apparatus when the abnormality is detected, and determines, when there are a plurality of introduction plans, an introduction plan used for coping with the abnormality on the basis of a state in which other abnormalities that are likely to occur concurrently with the abnormality can be coped with, by surplus resources remaining when the introduction plans are executed.