The example, shown in the figure below, depicts a combination of the previous two examples. IASP36 is 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. Assume that nodes C and D and the second server, node E, are defined to be in the same device domain, and that the independent disk pool can be switched between those three nodes.
