esx and NFS , ifgrp 1g to 10g without any downtime ??

Hi there

got a customer using ifgrp with 4 X 1g ports as following  e0a and e0b is vifA  ; e0c and e0d is vifB ,then a second level ifggrp is configureed as vif2 with members vifA and vifB (as seen below)

customer had bought 10g switch and filer has e1 and e2 ports as 10g, Can we migrate this production environment to 10g ifgrp without any downtime ??  (Vmware ESX is mounted with some datastores from this filer  )

By creating a new ifgrp with 10g eth cards ,and adding it to existing ifgrp ??

Thanks  a lot.