Final answer:
The stripe size of a five-disk RAID 5 set is 64KB, calculated by multiplying the strip size (16KB) by the number of data disks (four, in RAID 5).
Step-by-step explanation:
The stripe size of a RAID 5 set with five disks and a strip size of 16KB is 64KB. RAID 5 uses one disk's worth of space for parity, but the remaining disks (four in this case) are used for data storage in a striped manner similar to RAID 0. Therefore, with a strip size of 16KB on each of the four data disks, you multiply 16KB by 4 (data disks) to get a total stripe size of 64KB for RAID 5.
In contrast, a five-disk RAID 0 array with the same strip size of 16KB would have a stripe size of 80KB. RAID 0 strips data across all disks without parity, so in this case, you multiply the strip size of 16KB by all five disks. This provides increased performance and storage capacity but no fault tolerance, unlike RAID 5.
Ultimately, the main difference between the two configurations is that RAID 5 provides redundancy with the ability to survive a single disk failure while RAID 0 does not.