Final answer:
A cluster status becomes searchable when it has a stable infrastructure, sufficient hardware resources, completed data indexing, fault tolerance, and reliable data replication strategies.
Step-by-step explanation:
For a cluster status to be "searchable," several key requirements must be met. These requirements ensure that the cluster is configured correctly and is capable of handling search queries effectively. A searchable cluster must have a stable and operational infrastructure, which includes network connectivity, sufficient hardware resources such as CPU, memory, and disk space to handle search operations, and a well-configured cluster management system. In addition, the relevant data indexing processes should be completed, meaning that the data must be organized in such a way that it can be efficiently searched. Fault tolerance and reliable data replication strategies are also important to ensure that the cluster can continue to function and provide search capabilities even if there are failures within the system.