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Replace a Compute node

In this example we have a cluster of 1 ovs node (ovs-node01) & 2 compute nodes (cpu-node01 and cpu-node02) with active vPools running on them:

10.100.199.151 - ovs-node01

10.100.199.152 - cpu-node01
10.100.199.153 - cpu-node02

Suddenly 10.100.199.152 - cpu-node01 goes down due:

  • to a hardware failure
  • reforming existing architecture

NOTE: the compute node must be shutdown and offline.

Move virtual machines to new CPU node

  • Move the virtual machines who lived on 10.100.199.152 - cpu-node01 to 10.100.199.153 - cpu-node02 through your hypervisor management tool (vCenter, OpenStack)
  • Start the virtual machines

Remove CPU node

  • Remove/replace or repair the compute node

Re-adding a compute node

  • Start the compute node
  • Install the required packages on the node

For more information on how to add a compute node to an Open vStorage cluster, see the Installation section.

Live migrate the virtual machines

  • Move the virtual machines back to the new compute node