Table 38 Storage System Setting Items (3DC Multi-Target Configuration)
RemarksDescriptionItem
Use Remote Web Console for the setup.A journal group is required for the
primary site and remote site.
Journal group
Timer type: Local
Use Remote Web Console for the setup.One or more journal volumes are
required for both the primary site and
remote site.
Journal volume
Use Remote Web Console for the setup.Three command devices are required for
each storage system (nine in total).
Command device
• Normal 3DC Multi-Target
configuration:
One command device is required for
each storage system because the
command device on the primary site
can be shared by the routes (Primary
-> Local) and (Primary -> Remote).
• 3DC Cascade configuration (Local ->
Primary -> Remote):
One command device is required for
each storage system.
• 3DC Cascade configuration (Remote
-> Primary -> Local):
One command device is required for
each storage system.
Use Remote Web Console for the setup.Logical path
• An inter-control unit logical path is
required between the primary site and
local site (for both directions).
• An inter-disk controller logical path is
required between the primary site and
remote site (for both directions).
Preparing the Configuration Files (3DC Multi-Target Configuration)
Table 39 (page 150) lists the configuration files required for using Business Continuity Manager in
a 3DC Multi-Target configuration.
Table 39 Required Configuration Files (3DC Multi-Target Configuration)
RemarksDescriptionItem
–Disk configuration definition files are
required for primary, local, and remote
sites.
Disk configuration
definition file
Set this up before starting a copy
operation. If the Cnt-Ac S Consistency
Definition files for the Cnt Ac-S and Cnt
Ac-J copy groups are required.
Copy group definition
file
Preservation function is not used, the
consistency of a copy pair volume update
sequence might not be preserved in some
cases (such as a line error).
150 Configuration Definitions
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