A customer wants to deploy a 6 TB database using Storwize V7000. The exhibit shows the Disk
Magic model that was created to predict the performance. When the system was deployed the
service times at different IOPS were consistently longer than forecasted by Disk Magic.

What might cause this situation?

A.
Disk Magic defaults to Easy Tier enabled

B.
Disk Magic Used Capacity was understated in the model

C.
Actual performance will increase over time as the cache warms up

D.
Disk Magic is a marketing tool so it always overestimates performance

Explanation: