Cohesity: In Azure, how to Destroy Azure Cluster nodes and repurpose them to add it to running cluster.

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1. Stop the cluster.

2. Destroy the cluster.

3. Wipe config on freed Nodes.

4. Add Nodes to Cluster.

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Code Running 6.3.1g:

[cohesity@shcstypazbk003-000d3a317381-node-1 ~]$ iris_cli cluster stop

[cohesity@shcstypazbk003-000d3a317381-node-1 ~]$ iris_cli cluster status

[cohesity@shcstypazbk003-000d3a317381-node-1 ~]$ iris_cli cluster destroy id=<Cluster_ID>

[cohesity@shcstypazbk003-000d3a317381-node-1 ~]$ iris_cli cluster

[cohesity@ClusterName--node-1 ~]$ ps -ef iris_cli

After cluster Destroy, log into individual Node and run iris_cli node status.

[cohesity@ClusterName--node-1 ~]$iris_cli node status

NODE ID                       : 123456789107

NODE IPS                      : 10.10.9.100, fe80::20d:3aff:fe31:7c6f

NODE IN CLUSTER               : false

CLUSTER ID                    : -1

CLUSTER INCARNATION ID        : -1

SOFTWARE VERSION              : 

LAST UPGRADED TIME            : 

NODE UPTIME                   : 

ACTIVE OPERATION              : 

MESSAGE                       : Node is not part of a cluster.

(If response says, node is not part of cluster, its green to go.)

(ButIf, if node says, its part of cluster, It might need to wipe out data and config manually with prepopulated script)

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[support@azure-cohesity--node-1 bin]$ pwd

/home/cohesity/bin

[cohesity@azure-cohesity--node-1 bin]$ cd rescue/

[cohesity@azure-cohesity--node-1 rescue]$ ls

breakfix_nvme_ssd.sh  clean_node.sh  defsh.sh  erase_disk.sh  make_bootable_device.sh  reset_linux_users.sh  rollback_upgrade.sh

[cohesity@azure-cohesity--node-1 rescue]$

[cohesity@ClusterName--node-1 rescue]$ ./clean_node.sh

CLEAN NODE IS A DESTRUCTIVE OPERATION.  DO YOU WANT TO PROCEED? (Y/N): y

Cleaning...

[cohesity@ClusterName--node-1 rescue]$ reboot.sh 

RECEIVED REQUEST TO REBOOT NODE. DO YOU WANT TO PROCEED? (Y/N): y

Rebooting...

Connection to 10.249.8.135 closed by remote host.

By Now, Node will be free and not part of Cluster. 

AT this step, you can move to Node Add.

1. Log into the Cluster where you want to join new nodes.

2. iris_cli

3. admin@127.0.0.1> cluster cloud-join node-ips=10.10.9.100,10.10.9.101,10.10.9.102

(These IPs are IPs from recently destroyed Nodes.)

Monitor Nodes add work in Siren and/or GUI.