Replicated Data Backup Coordination via Secondary Node Assessment
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Solution Overview
Problem
Current data backup technologies face challenges in coordinating backups between multiple nodes using replicated data, often resulting in incomplete or inconsistent backups, especially when performed on secondary or passive nodes, and can fail if the secondary node is unavailable, leading to increased burden on primary nodes and resource requirements.
Innovation Solution
A method and system that identify replicated data on primary and secondary nodes, determining if a backup can be performed on the secondary node, and creating a backup copy on the secondary node if possible, or on the primary node if not, thereby ensuring complete and consistent backups while reducing the load on primary nodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If backup is performed on secondary node, then backup efficiency is improved and primary node burden is reduced, but backup consistency may be compromised due to replication status uncertainty
Solution Approach 1:
The system performs preliminary actions by checking replication status and determining backup capability on the secondary node before executing the backup. This preliminary assessment ensures that the secondary node has the necessary data and capability to perform a consistent backup, thereby resolving the contradiction between improving backup efficiency and maintaining backup consistency.
Solution Approach 2:
The system implements feedback mechanisms by monitoring replication status and using this information to determine whether the secondary node can perform a backup. This feedback loop ensures that backup decisions are based on current system state, maintaining consistency while enabling secondary nodes to perform backups when appropriate.
2Reliability
If full backup includes both replicated and non-replicated storage, then comprehensive backup is achieved, but backup complexity increases
Solution Approach 1:
The system segments the backup process by separately handling replicated and non-replicated storage. It identifies which storage is replicated and which is not, then performs appropriate backup operations for each type. This segmentation reduces complexity by breaking down the comprehensive backup task into manageable, distinct operations.
Solution Approach 2:
The system extracts and identifies replicated storage from the total storage set, separating it from non-replicated storage. This extraction allows the backup process to treat different storage types differently, simplifying the overall backup coordination while ensuring comprehensive coverage of both replicated and non-replicated data.
Data Source
AI summary
Techniques for backing up replicated data are disclosed. In one particular exemplary embodiment, the techniques may be realized as a method for backing up replicated data comprising identifying replicated data on a primary node and a secondary node, and determining whether a backup is capable of being performed on the secondary node. In the event a backup is capable of being performed on the secondary node, the method may create a backup copy of the identified replicated data on the secondary node, and in the event a backup is not capable of being performed on the secondary node, the method may create a backup copy of the identified replicated data on the primary node.