What goes on behind the scenes when upgrading RHEV-H via the WebUI?

Solution Verified - Updated -

Issue

  • I would like to better understand exactly what goes on behind the scenes when instructing an upgrade of hypervisor via the WebUI.
  • I would like to know what risks are involved, for example, overwriting other FC data domain LUNS.
  • The message 'Reinstall' makes me think that it will just destroy everything from scratch.

Environment

  • Red Hat Enterprise Virtualization.
  • Red Hat Enterprise Virtualization Hypervisor.

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