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NS0-157 · Question #283

Which of the following statements are true about data protection mirrors? (Choose all that apply)

The correct answer is A. A data protection source volume supports up to 4 destination mirrored volumes C. A volume must be created before it can be used as a mirror destination. A DP source volume supports up to 4 mirror destinations, and the destination volume must be pre-created as a DP-type volume before the mirror relationship is established.

Data Protection and High Availability

Question

Which of the following statements are true about data protection mirrors? (Choose all that apply)

Options

  • AA data protection source volume supports up to 4 destination mirrored volumes
  • BA data protection source volume supports up to 1 destination volume per node
  • CA volume must be created before it can be used as a mirror destination
  • DCreating a mirror relationship also creates the destination volume

How the community answered

(42 responses)
  • A
    93% (39)
  • B
    2% (1)
  • D
    5% (2)

Why each option

A DP source volume supports up to 4 mirror destinations, and the destination volume must be pre-created as a DP-type volume before the mirror relationship is established.

AA data protection source volume supports up to 4 destination mirrored volumesCorrect

Clustered Data ONTAP allows up to 4 SnapMirror DP destination volumes per source volume, enabling fan-out replication to multiple destinations for redundancy or load distribution.

BA data protection source volume supports up to 1 destination volume per node

The constraint on DP mirror destinations is up to 4 total per source volume, not a limit of 1 per node - node placement does not define the per-source destination count.

CA volume must be created before it can be used as a mirror destinationCorrect

The destination volume must be explicitly created with the DP volume type before creating the SnapMirror relationship; the relationship creation command does not automatically provision the destination.

DCreating a mirror relationship also creates the destination volume

Creating a SnapMirror relationship does not automatically create the destination volume; the administrator must manually pre-create it with the correct type and capacity before initializing the relationship.

Concept tested: SnapMirror DP fan-out limits and destination pre-creation

Source: https://docs.netapp.com/us-en/ontap/data-protection/create-replication-relationship-task.html

Topics

#DP mirror#mirror destination#volume replication#SnapMirror

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