IPI PowerVS: Power10 Migration in One Change

Running an OpenShift IPI cluster on PowerVS? Moving to Power10 can be as simple as updating the machine systemType and letting OpenShift perform a rolling node replacement. The cluster provisions new nodes, migrates workloads, and removes the old VMs automatically. Full details at Christy Norman’s blog. [community.ibm.com]

Control plane

oc patch controlplanemachineset cluster \
  -n openshift-machine-api \
  --type=merge \
  -p '{"spec":{"template":{"machines_v1beta1_machine_openshift_io":{"spec":{"providerSpec":{"value":{"systemType":"s1022"}}}}}}}'

Workers

oc patch machineset <worker-machineset> \
  -n openshift-machine-api \
  --type=merge \
  -p '{"spec":{"template":{"spec":{"providerSpec":{"value":{"systemType":"s1022"}}}}}}'

Credit: Christy Norman, “Migrating an OpenShift IPI Cluster to Power10 on Power Virtual Server.” [community.ibm.com]