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Configuring a node for non-HA (stand-alone) use

By default, storage controllers are configured for use in HA mode. To use a controller as a single node cluster, you must disable the controller failover functionality and change the node to non-HA mode.

Before you begin

You must determine the current configuration of the storage controller because the controller failover and HA mode states can vary. You can use the storage failover show command to determine the current configuration.

You must also confirm that all loops and disk shelves in the system contain disks that belong to only one of the two nodes you intend to isolate. If any disk shelves or loops contain a mix of disks belonging to both nodes, you must move data.

About this task

When a storage controller is shipped from the factory or when Data ONTAP is reinstalled using option four of the Data ONTAP boot menu (Clean configuration and initialize all disks), HA mode is enabled by default, and the system's nonvolatile memory (NVRAM or NVMEM) is split. If you plan to use the controller as a single node cluster, you must configure the node as non-HA. Reconfiguring the node as non-HA mode enables full use of the system's nonvolatile memory.

Note: Configuring the node as a single node cluster removes the availability benefits of the HA configuration and creates a single point of failure.

For information on single node clusters, see the Clustered Data ONTAP System Administration Guide for Cluster Administrators.

For information on using the boot menu to manage the storage system, see the Clustered Data ONTAP System Administration Guide for Cluster Administrators.

After you finish

Reconfigure the hardware.