# “Shared Disk” Clusters

- ## Shared Disk clusters successfully meet the needs of companies that require capabilities beyond those of Shared Nothing clusters:

  - Databases or file populations that are not practical to segregate or micro-manage
  - Practical scalability beyond 2-3 server nodes
  - Consistent system management across a large cluster
  - Where system growth must occur easily, without the requirement to redistribute files/data or disturb users

- ## Shared Disk clusters are simpler to use & manage

  - This reduces Total Cost of Ownership (TCO) of the cluster configuration and its system management significantly

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