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docs/doc/source/node_management/openstack/adding-compute-nodes-to-an-existing-duplex-system.rst
Rafael Jardim d6fb867888 Upstreaming WRO 
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Signed-off-by: Rafael Jardim <rafaeljordao.jardim@windriver.com>
Change-Id: I7910d9f54e158250004abd7e17a4e119f8064252
Signed-off-by: Ron Stone <ronald.stone@windriver.com>
2021-03-31 08:57:23 -04:00

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Add Compute Nodes to an Existing Duplex System

You can add up to 6 compute nodes to an existing Duplex system by following the standard procedures for adding compute nodes to a system.

partner

Before adding compute nodes to a duplex system, you can either add and provision platform RAM and CPU cores on the controllers or reallocate RAM and CPU cores from the VMs to the platform.

The requirements for each added compute node are as follows:

Compute Nodes RAM (GB) CPU Cores
1 +2 +1
2 +4 +1
3 +6 +2
4 +8 +2

  1. Provision the resources.

    To allocate resources to the controller, update the controller resource inventory in . See : Memory Tab <memory-tab> and Processor Tab <processor-tab>.

  2. Add the hosts (compute nodes).

    Add one or more host entries to the system inventory.

For more information on Host memory provisioning, see, :

  • Allocate Host Memory Using Horizon <allocating-host-memory-using-horizon>
  • Allocate Host Memory Using the CLI <allocating-host-memory-using-the-cli>

For more information about labeling Compute nodes, see Use Labels to Identify OpenStack Nodes <using-labels-to-identify-openstack-nodes>.