When configuring a stripe set using two disks of differing sizes (150GB and 250GB), what will be the size of the stripe set?

The size of a stripe set is determined by the smallest disk in the configuration, as all disks in a stripe set must be utilized to store data evenly across them. In this case, when using two disks of differing sizes (150GB and 250GB), the stripe set's usable capacity is equal to the combined capacity of the two disks, minus the space on the larger disk that exceeds the smaller disk.

Since the smaller of the two disks is 150GB, this means that while the 250GB disk can offer additional space, it will not be utilized in the stripe set beyond what the smaller disk allows. Therefore, for the stripe set, each disk will effectively provide 150GB of usable capacity, resulting in a total effective capacity of 300GB (150GB from the first disk plus 150GB from the portion of the second disk being utilized).

This method of calculating the size ensures that data can be stored effectively while maintaining the required redundancy and performance benefits of striping.