Red Hat Training

A Red Hat training course is available for Red Hat OpenStack Platform

2.2. Scaling down hyperconverged nodes in HCI environments

To scale down hyperconverged nodes in HCI environments you must rebalance the Ceph OSD services on the HCI node, migrate instances from the HCI nodes, and remove the Compute nodes from the overcloud.

Procedure

  1. Disable and rebalance the Ceph OSD services on the HCI node. This step is necessary because director does not automatically rebalance the Red Hat Ceph Storage cluster when you remove HCI or Red Hat Ceph Storage nodes.
  2. Migrate the instances from the HCI nodes. For more information, see Migrating virtual machines between Compute nodes in the Configuring the Compute Service for Instance Creation guide.
  3. Remove the Compute nodes from the overcloud. For more information, see Removing Compute nodes.