description NetApp MetroCluster Overview
NetApp MetroCluster combines storage-array clustering with synchronous replication between sites. Data is mirrored as it changes, while the storage configuration provides a path for access to continue through a surviving site after a failure. It is built around NetApp storage and ONTAP, making the underlying storage design an essential part of the solution rather than an incidental deployment choice. Enterprise IT teams use MetroCluster for demanding workloads where storage availability across sites matters.
Its distinction is protection at the storage layer, including coordinated switchover and subsequent recovery of the affected site. The exact behavior depends on the configuration, so immediate or fully automatic application failover should not be assumed in every deployment.
help NetApp MetroCluster FAQ
What problem does NetApp MetroCluster solve?
MetroCluster is designed for high availability and disaster recovery across two sites. In ONTAP environments, it can keep mirrored storage available if one site fails.
Does NetApp MetroCluster use synchronous replication?
Yes, classic MetroCluster uses synchronous mirroring so committed writes are protected across sites. NetApp also has related ONTAP replication technologies such as SnapMirror for other disaster recovery patterns.
What is the difference between MetroCluster FC and MetroCluster IP?
MetroCluster FC uses Fibre Channel infrastructure between sites, while MetroCluster IP uses IP-based networking for the intersite links. MetroCluster IP became a major direction for newer ONTAP deployments because it reduces dependence on dedicated FC extension gear.
Is MetroCluster only for backups?
No. It is an availability architecture, not just a backup product. Backups still matter because MetroCluster protects service continuity, while snapshots, SnapMirror, or external backup tools protect against deletion, corruption, and ransomware scenarios.
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