addinganewnode.rst

Adding new nodes

While adding a new node to the cluster, users can modify the following:

• The operating system
• CUDA
• OFED

A new node can be added using the following ways:

1. When the discovery mechanism is switch-based:

   • Edit or append JSON list stored in switch-based-details in input/provision_config.yml.

   Note

   • All ports residing on the same switch should be listed in the same JSON list element.
   • Ports configured via Omnia should be not be removed from switch-based-details in input/provision_config.yml.

   • Run provision.yml.

2. When the discovery mechanism is mapping:

   • Update the existing mapping file by appending the new entry (without the disrupting the older entries) or provide a new mapping file by pointing pxe_mapping_file_path in provision_config.yml to the new location.
   • Run provision.yml.

3. When the discovery mechanism is snmpwalk:

   • Run provision.yml once the switch has discovered the potential new node.

4. When the discovery mechanism is bmc:

   • Run provision.yml once the node has joined the cluster using an IP that exists within the provided range.

Alternatively, if a new mode is to be added with no change in configuration, run the following commands: :

cd provision
ansible-playbook discovery_provision.yml