OpenShift VM Rebalancer FAQs

Question 1

Does this skill support live migration for zero downtime?

Accepted Answer

Yes, the skill supports live migration for zero-downtime moves, provided the Virtual Machine is using ReadWriteMany (RWX) storage. For RWO storage, it automatically suggests a cold migration strategy.

Question 2

How does the skill determine when a cluster needs rebalancing?

Accepted Answer

In automatic mode, the skill calculates node load based on allocated capacity (vCPU and Memory reservations) of all hosted VMs rather than just current runtime usage, ensuring more stable placement decisions.

Question 3

What happens if a migration would result in an overcommitted node?

Accepted Answer

The skill performs a pre-flight check and generates a detailed Overcommit Warning if CPU or Memory allocations will exceed 100% of node capacity, requiring explicit user confirmation before proceeding.

Question 4

Can I use this skill to drain a node for maintenance?

Accepted Answer

Yes, you can trigger the skill with phrases like 'Drain worker-02 for maintenance,' and it will orchestrate the migration of all VMs on that node to other suitable targets in the cluster.

Question 5

What are the core requirements to run this skill?

Accepted Answer

It requires the openshift-virtualization MCP server, a configured KUBECONFIG, and an OpenShift cluster (version 4.17 or higher) with the OpenShift Virtualization operator installed.

OpenShift VM Rebalancer

OpenShift VM Rebalancer

主な機能

ユースケース

主な機能

ユースケース