Setting options and parameters

Options help you maintain various functions of your node, such as security, file access, and network communication. During takeover, the value of an option might be changed by the node doing the takeover. This can cause unexpected behavior during a takeover. To avoid unexpected behavior, specific option values must be the same on both the local and partner node.

Option types for active/active configurations
Some options must be the same on both nodes in the active/active configuration, while some can be different, and some are affected by failover events.
Setting matching node options
Because some Data ONTAP options need to be the same on both the local and partner node, you need to check these options with the options command on each node and change them as necessary.
Parameters that must be the same on each node
Lists the parameters that must be the same so that takeover is smooth and data is transferred between the nodes correctly.
Disabling the change_fsid option in MetroCluster configurations
In a MetroCluster configuration, you can take advantage of the change_fsid option in Data ONTAP to simplify site takeover when the cf forcetakeover -d command is used.
Configuration of the hw_assist option
You can use the hardware assisted takeover option to speed up takeover times. The option uses the remote management card to quickly communicate local status changes to the partner node, and has configurable parameters.

Parent topic: Configuring an active/active configuration

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