Hi,

As described at today’s ops meeting; RAL are seeing failures due to  negative latency issues.

Please could following sites check their clocks are up to date on the following hosts:

 

grid-perfsonar.hpc.susx.ac.uk

t2ps-latency.physics.ox.ac.uk

perfson1.ppgrid1.rhul.ac.uk

perfsonar-latency.esc.qmul.ac.uk

 

plots can be found here:

 

http://netmon02.grid.hep.ph.ic.ac.uk:8080/maddash-webui/details.cgi?uri=/maddash/grids/UK+Good+Sites+-+Latency/lcgps01.gridpp.rl.ac.uk/grid-perfsonar.hpc.susx.ac.uk/Loss

http://netmon02.grid.hep.ph.ic.ac.uk:8080/maddash-webui/details.cgi?uri=/maddash/grids/UK+Good+Sites+-+Latency/lcgps01.gridpp.rl.ac.uk/t2ps-latency.physics.ox.ac.uk/Loss

http://netmon02.grid.hep.ph.ic.ac.uk:8080/maddash-webui/details.cgi?uri=/maddash/grids/UK+Good+Sites+-+Latency/lcgps01.gridpp.rl.ac.uk/perfson1.ppgrid1.rhul.ac.uk/Loss

http://netmon02.grid.hep.ph.ic.ac.uk:8080/maddash-webui/details.cgi?uri=/maddash/grids/UK+Good+Sites+-+Latency/lcgps01.gridpp.rl.ac.uk/perfsonar-latency.esc.qmul.ac.uk/Loss

 

 

and can be reached by clicking on the red tabs in the UK Good Sites - Latency  plots here:

 

http://netmon02.grid.hep.ph.ic.ac.uk:8080/maddash-webui/index.cgi

 

 

Brian