Preparing for the MetroCluster installation

As you prepare for the MetroCluster installation, you should understand the MetroCluster hardware architecture and required components.

Differences between the ONTAP MetroCluster configurations
The various MetroCluster configurations have key differences in the required components.
Considerations for using All SAN Array systems in MetroCluster configurations
Some All SAN Arrays (ASAs) are supported in MetroCluster configurations. In the MetroCluster documentation, the information for AFF models applies to the corresponding ASA system. For example, all cabling and other information for the AFF A400 system also applies to the ASA AFF A400 system.
Considerations for configuring cluster peering
Each MetroCluster site is configured as a peer to its partner site. You should be familiar with the prerequisites and guidelines for configuring the peering relationships and when deciding whether to use shared or dedicated ports for those relationships.
Considerations when using unmirrored aggregates
If your configuration includes unmirrored aggregates, you must be aware of potential access issues after switchover operations.
Considerations for firewall usage at MetroCluster sites
If you are using a firewall at a MetroCluster site, you must ensure access for certain required ports.
Preconfigured settings for new MetroCluster systems from the factory
New MetroCluster nodes and, if present, FC-to-SAS bridges are preconfigured and MetroCluster settings are enabled in the software. In most cases, you do not need to perform the detailed procedures provided in this guide.