# Topologies for Snapshot Copies for NetApp Open Replication

For replication with the NetApp Open Replication feature, you can create snapshot copies for the topologies that are listed in the following tables.

## Single Replication or Fan-Out Replication

Topology | Source Copy
--- | ---
Primary-Mirror | Primary
Primary-Vault | Primary

## Cascade Replication

Topology | Source Copy | Secondary Copy | Tertiary Copy
--- | --- | --- | ---
Primary-Mirror-Mirror | Primary | Mirror | Mirror
Primary-Mirror-Vault | Primary | Mirror | Vault
Primary-Vault-Mirror | Primary | Vault | Mirror
Primary-Vault-Vault | Primary | Vault | Vault

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