Non-IBM disk array

A disk array appears to the operating system as a single, rather large, disk drive. Because a disk array actually contains a number of physical disk drives, each of which can handle multiple requests, the queue depth for the disk array device has to be set to a value high enough to allow efficient use of all of the physical devices. For example, if hdisk7 were an eight-disk non-IBM disk array, an appropriate change would be as follows:

# chdev -l hdisk7 -a q_type=simple -a queue_depth=24