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Figure 16 N-to-1 Remote-Copy Configuration

In an N-to-1 remote-copy configuration:

• All of the remote-copy pairs can be bidirectional.

• You can use RCIP, RCFC, or FCIP connections with N-to-1 remote-copy configurations.

• For a 2:1 configuration using RCIP, the target requires a minimum of two nodes.

For a 3:1 or 4:1 configuration using RCIP, the target requires four nodes.

• If you are using FCIP or RCFC, the target requires two nodes for every source node replicating

to it. In a two-node storage system, a 4-to-1 configuration is possible, where the target is a

two-node array, provided that the target system is appropriately configured for the workload.

• The backup system in the N-to-1 configuration must use only the following controller nodes:

HP 3PAR StoreServ 10000 Storage◦

◦ HP 3PAR StoreServ 7000 Storage

◦ HP 3PAR T-Class Storage

◦ HP 3PAR F-Class Storage

• You can use either synchronous or asynchronous periodic mode remote-copy volume groups

with N-to-1 remote-copy configurations. Both the synchronous mode and the asynchronous

periodic mode can be used at the same time between different remote-copy pairs.

1-to-N Remote-Copy Considerations

1-to-N remote-copy configurations consist of one primary storage system that replicates data to up

to four other storage systems. Figure 17 (page 45) shows a configuration with one primary storage

system which has bidirectional replication with System2 and unidirectional replication to System3.

44 Setting Up M-to-N Remote Copy

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Hp 3PAR Operating System Software Manual do Utilizador Página 44