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Systems & Data Center · Advanced

SnapMirror

NetApp's replication technology that copies Snapshot-based volume data between ONTAP systems for disaster recovery or backup.

Definition

SnapMirror can be asynchronous or synchronous, and SnapVault-style policies retain longer history on the destination. SnapMirror Business Continuity provides active-active SAN failover.

Example

An hourly SnapMirror relationship replicates vol_db to a DR cluster 500 km away.

Exam tip

SnapMirror for DR mirrors the source; vault policies keep longer retention for backup.

Related terms