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Question 29/86
Your flex cluster has these attributes:
1. Hub nodes host01 and host02
2. Leaf nodes host03 and host04
3. Full Featured GNS is configured and running.
You attempt to run this command to add two more nodes to the cluster:
$ ./addnode.sh -silent "CLUSTER_NEW_NODES={host05,host06}"
"CLUSTER_NEW_NODE_ROLES={hub,leaf}"
What is the result and the reason for this result?
1. Hub nodes host01 and host02
2. Leaf nodes host03 and host04
3. Full Featured GNS is configured and running.
You attempt to run this command to add two more nodes to the cluster:
$ ./addnode.sh -silent "CLUSTER_NEW_NODES={host05,host06}"
"CLUSTER_NEW_NODE_ROLES={hub,leaf}"
What is the result and the reason for this result?
Correct Answer: A
Explanation/Reference:
Explanation:
Hub Nodes always have VIPs.
Incorrect Answers:
C: Hub Nodes always have VIPs but Leaf Nodes may not.
B: Use the CLUSTER_NEW_NODE_ROLES parameter to indicate, in an Oracle Flex Cluster, whether the node you are adding is a Hub Node or a Leaf Node.
You can add multiple nodes, as follows:
$ addnode.sh -silent -noCopy ORACLE_HOME=Grid_home "CLUSTER_NEW_NODES
{node2,node3,node4}"
"CLUSTER_NEW_VIRTUAL_HOSTNAMES={node2-vip,node3-vip,}"
"CLUSTER_NEW_NODE_ROLES={HUB,HUB,LEAF}"
In the preceding syntax example, Node 4 is designated as a Leaf Node and does not require that a VIP be included.
References: https://docs.oracle.com/database/121/CWADD/clonecluster.htm#CWADD92139
Explanation:
Hub Nodes always have VIPs.
Incorrect Answers:
C: Hub Nodes always have VIPs but Leaf Nodes may not.
B: Use the CLUSTER_NEW_NODE_ROLES parameter to indicate, in an Oracle Flex Cluster, whether the node you are adding is a Hub Node or a Leaf Node.
You can add multiple nodes, as follows:
$ addnode.sh -silent -noCopy ORACLE_HOME=Grid_home "CLUSTER_NEW_NODES
{node2,node3,node4}"
"CLUSTER_NEW_VIRTUAL_HOSTNAMES={node2-vip,node3-vip,}"
"CLUSTER_NEW_NODE_ROLES={HUB,HUB,LEAF}"
In the preceding syntax example, Node 4 is designated as a Leaf Node and does not require that a VIP be included.
References: https://docs.oracle.com/database/121/CWADD/clonecluster.htm#CWADD92139
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