A server administrator builds a disk array with data striping. Several months later, a disk fails and the server crashes. Which of the following is the problem?

Data striping, typically referring to RAID 0, distributes data across multiple disks without any redundancy or parity information. If one disk in a RAID 0 array fails, the entire array becomes unreadable because parts of every file are missing, leading to data loss and a server crash.

Incorrect block sizes might impact performance but would not directly cause a server crash due to a single disk failure if the array itself had fault tolerance.

A 'parity disk' is part of RAID levels that provide fault tolerance (e.g., RAID 5 or RAID 6); an array with only data striping (RAID 0) does not utilize parity disks.

While a drive head breaking off is a type of disk failure, the problem described is why the server crashed *because* of the disk failure in the context of data striping, not the specific mechanical reason for the disk failure itself.