Release 2016_006 (2016-02-22)


No immediate impact regarding service availability.

All changes are preparatory for future storage improvements and to increase visibility of outages in our monitoring.


  • Update fc.agent to 1.8.2.


  • Improve storage reaction to overload conditions by reducing buffers in the I/O processing pipeline (#19785).


  • Improve network device monitor to detect “link down” (#20100)

  • Add a KVM health check to more pro-actively notify us if a KVM host show symptoms of defect (#20100)

  • Add generic VM health check to more to more pro-actively notify us if a VM show symptoms of defect (#20100)

  • Ignore NixOS VMs in Nagios consistency check (#19851)


  • The virtualmachine type now contains when the last maintenance has ended.