Example: Switchable expansion unit with logical partitions

 

This examples shows a figure composed of disk units contained in a switchable expansion unit. The expansion unit is on the same HSL loop as two systems, one of which is made up of four logical partitions.

The example, shown in the figure below, depicts a combination of the previous two examples. Assume that nodes C and D and the second system, node E, are defined to be in the same device domain, and that the independent disk pool can be switched between those three nodes.