HP 3PAR Operating System Software - Manual (Page 18)

Figure 3 (page 18) illustrates an N-to-1 configuration where:
•
Bidirectional remote copy is maintained between remote-copy pair System3 and System4.
Unidirectional remote copy is maintained between System1 and System4 and between System2
and System4.
Figure 3 N-to-1 Remote Copy
1-to-N Configuration
A 1-to-N remote-copy configuration is composed of multiple remote-copy pairs. A single primary
storage system can use a maximum of four backup storage systems. One primary system participates
in four remote-copy pairs, one for each backup system.
You can set up 1-to-N remote copy in any of the following configurations:
•
Four bidirectional remote-copy pairs.
•
Four unidirectional remote-copy pairs.
Figure 4 (page 19) illustrates a 1-to-N configuration, where:
•
Unidirectional remote copy is maintained between remote-copy pair, System1 and System3.
•
Bidirectional remote copy is maintained between remote-copy pair, System1 and System2.
18 Selecting a Remote-Copy Configuration