switch# config terminal
Enter configuration commands, one per line. End with CNTL/Z.
switch(config)# hardware profile portmode ?
  48x10g+4x40g  48x10G+4x40G port mode
  52x10g+3x40g  52x10G+3x40G port mode
  56x10g+2x40g  56x10G+2x40G port mode
  60x10g+1x40g  60x10G+1x40G port mode
  64x10g        64x10G port mode

switch(config)# hardware profile portmode 56x10g+2x40g 
Warning: This command will take effect only after saving the configuration and reload! Port configurations could get lost when port mode is changed! We suggest you clean up the impacted interfaces config and redo them after boot up! 
switch(config)#
switch(config)# exit
switch# copy running-config startup-config 
[#                                       ]   1%[#                                       ]--more---98%[########################################] 100%

switch# reload 
This command will reboot the system. (y/n)?  [n] y