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NS0-157 · Question #242

What is the maximum number of nodes supported for clustered Data ONTAP 8.2 serving only NAS protocols?

The correct answer is F. 24. Clustered Data ONTAP 8.2 supports a maximum of 24 nodes when the cluster is configured to serve NAS protocols only.

ONTAP Cluster Fundamentals

Question

What is the maximum number of nodes supported for clustered Data ONTAP 8.2 serving only NAS protocols?

Options

  • A1
  • B2
  • C4
  • D6
  • E16
  • F24

How the community answered

(33 responses)
  • A
    3% (1)
  • D
    3% (1)
  • F
    94% (31)

Why each option

Clustered Data ONTAP 8.2 supports a maximum of 24 nodes when the cluster is configured to serve NAS protocols only.

A1

1 node describes a standalone system, not a cluster; clustered Data ONTAP 8.2 requires a minimum of 2 nodes and supports far more for NAS-only use.

B2

2 nodes is the minimum HA pair configuration for clustered Data ONTAP but is far below the 24-node maximum supported for NAS-only clusters.

C4

4 nodes is well below the documented NAS-only maximum of 24 nodes for clustered Data ONTAP 8.2.

D6

6 nodes is well below the documented NAS-only maximum of 24 nodes for clustered Data ONTAP 8.2.

E16

16 nodes is the maximum for mixed SAN/NAS configurations in some ONTAP versions, but the NAS-only maximum for clustered Data ONTAP 8.2 is 24 nodes.

F24Correct

In clustered Data ONTAP 8.2, a NAS-only cluster serving NFS and/or CIFS can scale up to 24 nodes, enabling large horizontal expansion of NAS capacity and throughput. This higher node ceiling is specific to all-NAS configurations because NAS protocol serving has different architectural and interconnect constraints than SAN protocol serving. Mixed SAN/NAS clusters are limited to fewer nodes, making the 24-node limit an important NAS-specific scalability specification to know.

Concept tested: Clustered Data ONTAP 8.2 NAS-only maximum node count

Source: https://docs.netapp.com/us-en/ontap/concepts/cluster-storage-concept.html

Topics

#cluster scalability#NAS protocols#node limits

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