Removing a failed host from the configuration
Once you remove a failed host from the configuration, the remaining hosts will update the new configuration accordingly.
Note: If the host is still operational, running the Grid's
      uninstaller is the preferred way to remove a host. This instruction is only meant to be used
      when a host is completely unrecoverable and/or the uninstallation procedure fails. 
    To remove a failed host from the configuration, run grid-cli recovery removeHost hostName from any
      other functional host. 
Note: this will remove the host from the configuration and the Grid's database only. Files will
      not be removed and running Grid processes may still be running.