User`s guide

StorageWorks RAID Array 200 Controller Installation and Standalone Configuration Utility
6–8 EK–SWRA2–IG. C01
Figure 6–5 The Physical Parameters Screen
NOTE
You must set this option prior to creating logical
drives. If you set this option when you have
existing logical RAID drives, you will lose all of the
data on the existing logical RAID drives.
Press the Enter key to scroll through the available data chunks sizes that the
controller will stripe across disks. The default stripe size is 8K bytes.
4. Use the arrow keys to highlight the Controller read ahead option. This
option is enabled by default. Leave Controller Read Ahead enabled for a
subsystem processing primarily sequential, long file transfers. Disable
Controller read ahead for a subsystem processing primarily small, or
random transfers. Press the Enter key to disable this option.
When you finish setting these options press Esc to return to the Edit/View
Parameters menu.