Hi,
Export Historical Statistics is greyed out because (most probably) you haven't selected any disks to shown data for.
- On the middle of your page select disks
- Check the box Historical Data
- Select what type of statistics you want to show (Total IOPS), Data Throughputs, Average Response Time, ...)
- Set Time Range
- And finally, under actions, click on Export Historical Stats.
Hope this helps.
Cheers,
Dardan