Switch configuration for clusters running Element software

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The NetApp Element software system has certain switch requirements and best practices for optimal storage performance.

Storage nodes require 10 or 25GbE Ethernet switches, depending on specific node hardware, for iSCSI storage services and node intra-cluster services communication. 1GbE switches can be used for these types of traffic:

  • Management of the cluster and the nodes

  • Intra-cluster management traffic between the nodes

  • Traffic between the cluster nodes and the management node virtual machine

Best Practice: You should implement the following best practices when configuring Ethernet switches for cluster traffic:

  • For non-storage traffic in the cluster, deploy a pair of 1GbE switches to provide high availability and load sharing.

  • On the storage network switches, deploy switches in pairs and configure and utilize jumbo frames (an MTU size of 9216 bytes). This ensures a successful installation and eliminates storage network errors due to fragmented packets.