HP 3PAR Operating System Software - Manual (Page 16)

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. The single primary
storage system can use a maximum of two backup storage systems. Therefore, the primary system
participates in two Remote Copy pairs: one for each backup system.
You can set up 1-to-N Remote Copy configurations in either of the following arrangements:
•
One unidirectional Remote Copy pair and one bidirectional Remote Copy pair
•
Two unidirectional Remote Copy pairs
Figure 4 (page 17) illustrates an example 1-to-N configuration in which:
•
Unidirectional Remote Copy is maintained between Remote Copy pairs System1 and System3.
•
Bidirectional Remote Copy is maintained between Remote Copy pair System1 and System2.
16 Deciding on a Remote Copy Configuration