Indeed, to support Alex reply. It's the same for the FAS22xx series which support clustered ontap... they have to use the 1GBe ports for data access because they have to use the 10GBE for the cluster network (Unless they use the one cable cluster support option but as you might guess this is is a single point of failure) The FAS22xx want to be able to use the 10Gbe card but maybe limited where as you appear to have the opposite requirement . I hope this helps, Adrian