Compute node (HCI) removal Guide
Remove Compute node from clusterβ
Stop the compute hostβ
Goto Admin > Compute > All Hypervisors and click Compute host tab. Look for the hostname you wish to remove and click on button DISABLE SERVICE
Disable serviceβ
Leave a reason and click DISABLE SERVICE
Service Disabledβ
Make sure the service is disabled
Migrate Instances from disabled hostβ
Goto Admin > Compute > Instances, look for the instances which is hosted on DISABLED Host and start the LIVE MIGRATE INSTANCE from the action menu
Allocate the instance to new hostβ
You can choose a preferred host to migrate or Automatically and SUBMIT
All instances has been migratedβ
Repeat the steps and migrate the rest of the Instances
Connect to control nodeβ
$ ssh [email protected] Warning: Permanently added '192.168.1.x' (ECDSA) to the list of known hosts. Password:
Remove the compute nodeβ
cc1> cluster cc1:cluster> remove_node 1: compute01 2: compute02 3: compute03 Enter index: 3 this command is only applicable for compute or storage nodes make sure its running instances have been properly terminated or migrated shutdown the target host before proceeding Enter 'YES' to confirm: YES
Resultsβ
Goto Admin > Compute > All Hypervisors and click Compute host tab. Host compute03 has been removed from the Cluster
