Thank you for sending the results files over. This does appear to be a load related issue.
The reason why the 8-tile run had a score and the 10-tile run had a 0 score is that the 8-tile run had some passing Deploy operations, whereas the 8-tile run had 0 passing operations. When 0 operations (of any workload) pass during a VMmark run, the score is 0. However, both runs still failed Quality of Service overall.
On both the 8-tile run and 10-tile run, there were a large number of Quality of Service failures, although there were fewer failures on the 8-tile run. Most likely, either the storage or the system under test's CPU is overloaded. Try doing a 1-tile run and send me the results if you have a problem.
Were you previously getting passing VMmark runs (i.e. Score_N_Tile_Test.txt has the text "Run_Is_Compliant") on this same environment?
Thank you,
Rebecca