A tool designed for Ceph deployments assists administrators in estimating the raw storage capacity required based on desired usable capacity, redundancy levels, and other cluster parameters. For instance, configuring a cluster with triple replication will necessitate significantly more raw storage than one using erasure coding. Such tools often provide adjustable inputs for different Ceph configurations, allowing users to explore various scenarios and their impact on overall storage needs.
Accurate capacity planning is crucial for Ceph clusters to ensure optimal performance and cost-efficiency. Underestimating required capacity can lead to performance degradation or even data loss, while overestimating can result in unnecessary hardware expenses. Historically, calculating Ceph storage requirements involved complex manual calculations. These tools simplify this process, providing a user-friendly interface for generating accurate estimates and facilitating informed decision-making during the design and deployment phases.
