NS0-157 · Question #279
What must be configured to support inter-cluster Snapmirror relationships?
The correct answer is A. Cluster peer relationship. Inter-cluster SnapMirror relationships require a cluster peer relationship to be established first, which creates authenticated trust between the two clusters.
Question
What must be configured to support inter-cluster Snapmirror relationships?
Options
- ACluster peer relationship
- BIntercluster port role
- CJunction path for the mirrored volume
- DMinimum transfer size
How the community answered
(31 responses)- A90% (28)
- B3% (1)
- D6% (2)
Why each option
Inter-cluster SnapMirror relationships require a cluster peer relationship to be established first, which creates authenticated trust between the two clusters.
A cluster peer relationship must be configured before any inter-cluster SnapMirror relationship can be created. This peering authenticates the clusters to each other using a shared passphrase and establishes the logical connection required for both management communication and replication traffic between them.
Intercluster LIF configuration is a network-layer prerequisite, but the cluster peer relationship is the required logical construct that enables SnapMirror - configuring ports alone is insufficient.
A junction path enables NAS client access to a volume via NFS or CIFS and is not a prerequisite for configuring a SnapMirror replication relationship.
Minimum transfer size is an optional SnapMirror performance tuning parameter, not a required prerequisite for establishing the relationship.
Concept tested: Cluster peering prerequisite for inter-cluster SnapMirror
Source: https://docs.netapp.com/us-en/ontap/peering/index.html
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