Clariion CX4 - annual data consumed/allocated statistics

Hi,

I have been asked to identify how much data we have consumed
on our Clariion CX4 and Celerra NS-960 system.

Is this possible using any native Unisphere features?

Has anyone produced such statistics and can offer any advice or
tips that will allow me to produce these statistics especially as there is regular
housekeeping undertaken on this system.

Many thanks