anchor.diff:              periods: 0
               function: min
       - name: 'fs-warning-storage'
  -      description: 'Filesystem free space is low'
  +      description: "The filesystem's free space is low (storage node)."
         severity: 'warning'
         enabled: 'true'
         trigger:
  
positive.code:             periods: 0
              function: avg
      - name: 'cpu-warning-controller'
        description: 'CPU warning on controller'
        severity: 'warning'
        enabled: 'true'
        trigger:
  
negative.code:             periods: 0
              function: avg
      - name: 'cpu-critical-compute'
        description: 'The CPU usage is too high (compute node).'
        severity: 'critical'
        enabled: 'true'
        trigger:
  