About shared nothing clusters

Systems in shared nothing clusters do not share access to disks; they maintain separate copies of data. VCS shared nothing clusters typically have read-only data stored locally on both systems. For example, a pair of systems in a cluster that includes a critical Web server, which provides access to a backend database. The Web server runs on local disks and does not require data sharing at the Web server level.

Figure: Shared nothing cluster shows a shared nothing cluster.

Figure: Shared nothing cluster

Shared nothing cluster