A default is set during creation, based on the level and the logical drive input/output (I/O) characteristics that you specify. These two parameters should optimize the
segment size appropriately for your environment. When you create the logical drive, you also are given the option of selecting
a custom segment size rather than accepting the default segment size.
Monitor your , and change the segment size when necessary for optimal performance based on these guidelines.
If your typical I/O size is larger than your segment size, increase your segment size to minimize the number of disk drives
needed to satisfy an I/O request. This concept is especially true in a multi-user storage environment, a database storage
environment, or a file system storage environment. Using a single disk drive for a single request leaves other disk drives
available to simultaneously service other requests.
If you use the logical drive in a single-user, large I/O environment, such as for multimedia application storage, performance
is optimized when a single I/O request can be serviced with a single data stripe. A data stripe is the segment size multiplied
by the number of disk drives in the array that are used for I/O. In this case, multiple disks are used for the same request,
but each disk is accessed only once.