Hello, is there a way to create an aggregate Disk IO graph  for multiple devices ? 

We have a number of LHN nodes that give us this information in the graphs/type=device_diskio_ops tab and it would be useful to not have to add them up manually.

Richard Wigzell Technical Lead, Storage Platforms IT Services | University of Oxford 13 Banbury Road, Oxford OX2 6NN T: 01865 616282 www.it.ox.ac.uk