HP 3PAR Remote Copy Software - Manual (Page 87)

3.25 Setting Up Remote Copy
InForm OS Version 2.3.1 Remote Copy User’s Guide
3.5.1.5 Setting Up Additional Remote Copy Pairs
For configurations that use multiple Remote Copy pairs (also known as N-to-1 or 1-to-N type
configurations), after following the instructions in Setting Up Unidirectional Remote Copy on
page 3.17, repeat the entire process for each additional pair, up to a maximum of two
(for 1-to-N configurations) or four (for N-to-1 configurations) Remote Copy pairs.
Note that for N-to-1 configurations all pairs must share the same secondary storage server, and
for 1-to-N configurations all pairs must share the same primary storage server. See N-to-1
Restrictions on page 2.43 and 1-to-N Restrictions on page 2.44 for additional information and
restrictions regarding configurations with multiple Remote Copy pairs.
3.5.2 Setting Up Bidirectional Remote Copy
In this section, as illustrated by Figure 3-7 on page 3.26 :
■ The members of the Remote Copy pair are an eight-node cluster called InServ1 and a four-
node cluster called InServ2.
■ A virtual volume on InServ1 called vv1 is the only member of Group1.
■ A virtual volume on InServ2 is called vv1_remote and is the only member of
Group1.r112, the secondary group that is automatically created at the same time as
Group1.
Note that vv1 and vv1_remote must be the same size.
■ A virtual volume on InServ2 called vv2 is the only member of Group2.
■ A virtual volume on InServ1 is called vv2_remote and is the only member of
Group2.r125, the secondary group that is automatically created at the same time as
Group2.
Note that vv2 and vv2_remote must be the same size.
NOTE: The transport layer only needs to be set once per system. However, you
should verify the connectivity for each pair in the configuration.