Cluster Mode Architecture

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  • Overcoming the scalability of 7-mode would have required a complete rewrite of the 7-mode software architecture.
  • Clustered data ONTAP Evolved from a acquisition of spinnaker network in 2003.

Clustered Data ONTAP Architecture :





The architecture is same as  7-Mode except you can add multiple HA pairs to cluster in order to scale-up your storage system. This scaling is done by the the switch called "Cluster Interconnect switch" as shown in above figure.







Unlike 7 mode, Data can travel trough other nodes as well with the help of cluster interconnect switch.

Advantages over 7-mode :


  • Can Store up to 138PB of Data
  • In NAS supported Cluster can be scaled up to 24 Nodes 
  • In SAN supported cluster, It can be scaled up to 8 nodes
  • Performance is shared among all the nodes 
  • Load balancing improved 
  • Disk, shelves and nodes can be added non-disruptively





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