Storage System Disaster Preparation for Data Integrity
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current hierarchical storage systems face challenges in ensuring 100% data recovery during disasters, as they often rely on onsite storage solutions that may be compromised or destroyed, lacking effective offsite data protection mechanisms.
Innovation Solution
The implementation of a disaster preparation method that involves managing onsite data volumes to peer sites and storing cached data and management information on removable media, allowing for temporary offsite storage and subsequent recovery, enabling 100% data integrity post-disaster.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If data is stored only on onsite storage systems, then fast access and high-capacity storage are achieved, but data recovery is compromised when disaster strikes the onsite location
Solution Approach 1:
The system performs preliminary disaster preparation by identifying and protecting critical data before a disaster occurs. When a disaster warning is received, the system proactively copies data from vulnerable onsite storage to protected offsite storage locations, ensuring data survival without waiting for the disaster to strike.
Solution Approach 2:
The system introduces an intermediary disaster preparation layer between onsite and offsite storage. This intermediary mechanism manages data replication and protection workflows, coordinating between local storage systems and remote backup locations to ensure data integrity during disaster scenarios.
2Reliability
If data is replicated to offsite storage locations, then data protection during disasters is improved, but storage complexity and management overhead increase
Solution Approach 1:
The system implements self-service automation where the storage manager autonomously identifies data to be protected, initiates replication workflows, and manages offsite storage operations without requiring complex manual intervention. The system automatically responds to disaster warnings and executes protection protocols, reducing management complexity despite the distributed architecture.
3Speed
If all data is stored on fast DASD storage, then access speed is maximized, but storage cost and capacity limitations increase
Solution Approach 1:
The system segments data storage across multiple tiers and locations. Critical frequently-accessed data resides on fast DASD storage for rapid access, while disaster protection copies are replicated to offsite storage locations. This segmentation allows the system to maintain high-speed access for active data while distributing capacity requirements across different storage resources.
Data Source
AI summary
A preparation of a storage system of a pending disaster at an onsite location of the storage system involves the storage system receiving a disaster preparation initiation from an offsite client. In response to receiving the disaster preparation initiation from the offsite client, the storage system to executes disaster preparation of onsite data including managing a temporary storage of onsite data volumes to at least one peer site, managing a storage of onsite cached data to a first onsite removable media, and/or managing a storage of onsite management information to a second onsite removable media.