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How to Hot Add/Remove VCPUs from a Xen Domain

Thanks to Keith Herron for this story

Overview Xen supports vcpu hot add and remove, which allows you to add and remove CPUs from a running system without downtime. How it works Inside your domU config, you’ll need to set the “maxvcpus” setting to the maximum number of VCPUs that this domU will be allowed to have. If you don’t define this, […]

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