HP XP P9500 Storage - Manual (Page 271)

Table 85 Required configuration files (4x4x4 Delta Resync configuration) (continued)
Remarks Description Item
A Universal Replicator copy group (EXCTG) with the following attributes is required
both between the primary and remote sites and between the local and remote
sites (for Delta Resync configuration):
•
Timer type of the Universal Replicator copy group: SYSTEM
• The same journal group number is specified for the sub consistency group IDs
of the consistency group and the corresponding Delta Resync consistency group.
•
Different numbers are specified for the mirror IDs of the Cnt Ac-J Z copy group
and the Delta Resync Universal Replicator copy group.
• The same number is specified for the EXCTG IDs (forward) of the EXCTG and
the Delta Resync EXCTG.
Copy groups used for error handling must be created by dividing the above EXCTG
by storage system. Do not define such copy groups as EXCTG copy groups.
The following table describes the route lists required for using Business Continuity Manager in a
4x4x4 Delta Resync configuration.
Table 86 Required route list (4x4x4 Delta Resync configuration)
Route lists needed in Business Continuity Manager Remote site
condition Local site
condition Primary site
condition Host on which Business
Continuity Manager is
started
Primary -> Local Usable Usable Usable Primary host
Primary -> Remote
Primary -> Local Unusable Usable Usable
Primary -> Remote Usable Unusable Usable
Primary
#
Unusable Unusable Usable
Local -> Primary Usable Usable Usable Local host
Local -> Remote
Local -> Primary Unusable Usable Usable
Local -> Remote Usable Usable Unusable
Local
#
Unusable Usable Unusable
Remote -> Primary Usable Usable Usable Remote host
Remote -> Local
Remote -> Primary Usable Unusable Usable
Remote -> Local Usable Usable Unusable
None Usable Unusable Unusable
Legend:
Usable: The target site can be used.
Unusable: The target site cannot be used because of an error.
#
Required for the Cont Ac-S Z Consistency Preservation Function.
The following table shows how to prepare the configuration files at each site.
Defining a 4x4x4 Cascade Configuration 271