Domino 6.5.x crashing with NetApp storage

I have my data directory on NetApp volumes; I have followed all recomendation but Domino 6.5.x server just crash with no error message at all, the console just dissapear; I have NetApp Ontap 6.3 release. Other of my system use Domino 5.0.11 and also use the same NetApp filer volumes and there are no problems at all. Any idea why is crashing with 6.5.x release? Thank you, Jacobo