While modern storage controllers can make available an immense amount of space, in a real-life scenario, workloads actively use only a fraction of the total available storage space known as the footprint. Generally speaking, for a given cache size, the larger the footprint, the smaller the hit ratio, and vice versa. We will use backend storage in two configurations: (i) Full Backend in which the entire available backend storage will be used and (ii) Partial Backend in which we will use 7.1 million 512 byte sectors. In RAID-5, we shall have effectively the storage capacity of four disks at the back-end, where Full Backend amount to 284 million 512 byte sectors. Similarly, for RAID-10, we shall have effectively the storage capacity of two disks at the back-end, where Full Backend amount to 142 million 512 byte sectors.