Dell Technologies Proven Professional – Information Storage and Management (2023) — Question 8

What is the total usable data storage capacity in this scenario: a RAID 6 array with four 250 GB disks

Answer options

Correct answer: A

Explanation

In a RAID 6 setup, two disks are used for parity, which means that the total usable capacity is calculated as (Number of disks - 2) x Size of the disks. Here, (4 - 2) x 250 GB equals 500 GB. The other options are incorrect as they do not take the RAID 6 parity overhead into account.