3. Create the A C relationship (or the B C relationship). 4. Synchronize to system C, and ensure that A C is established: Figure 11-84 shows an example of a triangle topology (A  B, A  C, and B  C). Figure 11-85 shows an example of a fully connected topology (A  B, A  C, A  D, B  D,  and C  D). –A  B, A  C, A  D, B  C, B  D, and C  D –A  B, A  C, and B  C Chapter 11. Advanced Copy Services  517 Figure 11-86 Daisy-chain topology Figure 11-85 Fully connected topology Figure 11-84 Triangle topology Figure 11-85 is a fully connected mesh in which every system has a partnership to each of  the three other systems. This topology enables volumes to be replicated between any pair of  systems, for example A  B, A  C, and B  C. Figure 11-86 shows a daisy-chain topology.  Although systems can have up to three partnerships, volumes can be part of only one remote  copy relationship, for example A  B. System partnership intermix:  All of the preceding topologies are valid for the intermix of  the IBM SAN Volume Controller with the Storwize V7000 if the Storwize V7000 is set to the  replication layer and running IBM Spectrum Virtualize code 6.3.0 or later.