Sunday, 30 September 2007

RAL Network performance

Prior to running any transfer tests, I normally check the Gridmon plots for that site, the relevant T2 and RAL T1. Using the (non-default) options of 'Metric data on same graph" and "New graph on new test dest" (and "new test src"), you generally get a good feel for the sites capacity, and any 'slow' links associated with it. Sadly recently the Tier1 seems to be performing dreadfully WRT the other sites.
example to Glasgow from Durham, Edinburgh and RAL: