What we do have though in the mean time is from the GUI (only for NAS volumes as the block volumes are owned by the hosts) in
STATUS -> logical volume -> Function: Logical volume statistics then click on the volume on the left side of the screen.
Just FYI: the bond statistics are available in version 6. We have six physical interfaces with three bonds, and the graph page goes like this:
Bond0
Bond1
Bond2
Eth0
Eth1
Eth2
Eth3
Eth4
Eth5
You have to remember which interfaces go with which bonds, but the information is all there. Actually it makes for quite a long page to scroll through with that many graphs