CLUSTER MANAGEMENT METHOD AND DATA STORAGE SYSTEM FOR WATCHING STATE AND CHANGING FORM OF CLUSTER HAVING FAULT TOLERANCE

摘要

Disclosed is a cluster management method and data storage system for monitoring the status of clusters having fault tolerance and changing the shape of clusters. A data storage system comprising a plurality of repositories, each of the plurality of repositories comprising a plurality of replica repositories having a replication relationship with each other, the data storage system comprising a configuration master comprising a collector, a plurality of detectors and a cluster controller Wherein the cluster management method further comprises the steps of: storing the status of each of the plurality of replication repositories in the collection unit; determining the status of the replication repository to be detected among the plurality of replication repositories in each of the plurality of detection units; Registering a state determined as a candidate for the stored state if the state of the clone storage is different from the state stored in the collecting unit, and finally determining the state of the clone store to be detected based on the state registered as a candidate of the state stored in the collecting unit .