NS0-157 · Question #207
Which statement is true when a two node switchless cluster is grown to a four-node cluster?
The correct answer is A. The new HA-pair connected to two new cluster switches and the existing two-node cluster will. Growing a two-node switchless cluster to four nodes requires adding two cluster switches that both the existing and new HA pairs connect to.
Question
Which statement is true when a two node switchless cluster is grown to a four-node cluster?
Options
- AThe new HA-pair connected to two new cluster switches and the existing two-node cluster will
- BThere is a short outage while the new HA pair and existing two node cluster add additional
- CThe new HA pair is direct-attached to the existing two-node cluster-free 10 GbE ports without
- DThe new HA pair is connected to four new cluster switches and the existing two-node cluster will
How the community answered
(30 responses)- A93% (28)
- B3% (1)
- D3% (1)
Why each option
Growing a two-node switchless cluster to four nodes requires adding two cluster switches that both the existing and new HA pairs connect to.
When expanding a two-node switchless cluster to a four-node cluster, two new cluster switches must be introduced into the topology. The new HA pair connects to these switches, and the existing two-node cluster also migrates its cluster interconnect links to the same switches, converting the cluster from switchless to a fully switched topology in a non-disruptive manner.
Cluster expansion using the proper NetApp procedure is non-disruptive and does not require any outage during the addition of the new HA pair or switches.
A four-node cluster cannot use a switchless direct-attach topology; switches are required once the cluster grows beyond two nodes.
Only two cluster switches are needed to support a four-node cluster expansion, not four switches.
Concept tested: Two-node switchless cluster expansion to switched topology
Source: https://docs.netapp.com/us-en/ontap/networking/expand_a_two_node_switchless_cluster_to_a_switched_cluster_overview.html
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