The way the data is shared across the drives has a strong influence on performance. It’s
convenient to think of the disk storage as a large number of data sectors that are
addressable by number, rather like the pages in a book. The most obvious method is to
divide the virtual disk into groups of consecutive sectors the size of the individual
physical disks and store them in this manner, rather like the way a large encyclopaedia is
divided into a number of volumes. This method is called concatenation, and sometimes
JBOD (Just a Bunch Of Disks). It works well when the access to the virtual...