How MinIO Cluster Stores Data: A Complete Guide

The MinIO cluster is a distributed object storage system that stores data across multiple nodes to achieve high availability and scalability. Data is stored on multiple independent storage nodes within the MinIO cluster, which can be physical machines, virtual machines, or containers, communicating with each other through network connections.

When data is uploaded to the MinIO cluster, it is divided into multiple blocks and these blocks are distributed across different nodes for storage. The MinIO cluster uses a technique called Erasure Coding to achieve data redundancy and fault tolerance. Erasure Coding encodes the original data into multiple data blocks and parity blocks, which are stored on different nodes to ensure data recovery even if some nodes fail.

The MinIO cluster utilizes data sharding and load balancing technologies to achieve efficient storage and access of data. When a client requests access to data, the MinIO cluster selects the optimal node based on load conditions and data location for data reading and writing operations, ensuring high performance and reliability. Additionally, the MinIO cluster supports multiple replicas and data migration functionality to ensure data security and availability.