HP XP Array Manager Software - Manual (Page 14)

Figure 1 Performance Management Process Flow Diagram
Auto LUN lets you balance workload among hard disk drives, volumes (LUs) and processors to remove
bottlenecks from your system. If Performance Monitor indicates that a lot of I/Os are made to some hard
disk drives, you can use Auto LUN to distribute workloads to other disk drives. For details, see the HP
StorageWorks XP24000 Auto LUN Software User's Guide.
Overview of HP StorageWorks XP Performance Monitor 14