Storage Management Node Access Load Control

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Solution Overview

Problem

Conventional disaster recovery techniques do not consider the access load on storage systems when secondary usage of data copied to cloud storage occurs, leading to potential resource shortages and processing performance deterioration.

Innovation Solution

A management apparatus for a storage system that monitors access loads to secondary storage, calculates access rates for primary and secondary servers, and identifies servers with excessive increase rates, displaying relevant information to manage access loads effectively.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If data is copied to cloud storage for disaster recovery, then data availability and secondary usage capability are improved, but access load on storage increases causing resource shortages and processing performance deterioration

Engineering Contradiction:

Improvesecondary usage capabilityVSAvoidprocessing performance

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The management apparatus performs preliminary monitoring of access loads to secondary storage before performance deterioration occurs. By continuously tracking access patterns and calculating access rates for both primary and secondary servers, the system identifies potential bottlenecks in advance and takes preventive actions to maintain processing performance while enabling secondary usage capabilities.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system implements feedback mechanisms by monitoring access loads, calculating access rates, and identifying servers with excessive increase rates. This feedback loop enables the management apparatus to adjust resource allocation and manage access loads dynamically, ensuring that secondary usage does not compromise primary processing performance.

Inventive Principle:

Principle #23Feedback

2Reliability

If access load monitoring is implemented, then resource shortage prevention is improved, but system complexity increases

Engineering Contradiction:

Improveresource shortage preventionVSAvoidsystem complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The management apparatus performs multiple functions within a single system component: monitoring access loads, calculating access rates for different servers, identifying overloaded servers, and providing management information. This multi-functionality reduces the need for separate specialized components, thereby preventing resource shortages without proportionally increasing system complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS20250156105A1Management apparatus and management method for storage system

Publication Date: 2025.05.15 HITACHI VANTARA LTD

AI summary

A management node manages an access load on a second storage that provides, to second servers, a second volume to which a first volume provided to first servers by a first storage is remotely copied, and a snapshot created from the second volume. Where the number of accesses to a storage device storing the second volume or throughput thereof exceeds a threshold, the management node calculates an increase rate of the number of accesses on the basis of first number of writes and first number of reads to/from the second volume for each of the first servers. In addition, the management node calculates an increase rate of the number of accesses on the basis of second number of writes and second number of reads to/from the second volume. Then, the management node specifies the first servers and the second servers in which the increase rate exceeds a threshold.