HP XP Racks - Manual (Page 156)

Table 40 Required Configuration Files (3DC Cascade (Cnt Ac-S Z x Cnt Ac-J Z) Configuration) (continued)
Remarks Description Item
This item is not necessary if you use Remote Web Console
to set up logical paths. The following path sets are required for logical paths. Path set definition file
•
An inter-control unit logical path is required between
the primary site and intermediate site (for both
directions).
•
An inter-disk controller logical path is required
between the intermediate site and remote site (for
both directions).
A definition file for the Cnt Ac-S Z and Cnt Ac-J Z copy
groups are required. Copy group definition
file •
Set this item before starting a copy operation.
•
If the Cnt-Ac S Consistency Preservation Function is not
used, the copy pair update sequence might become
inconsistent in some cases (such as a line error).
• If you use the Cnt Ac-J Z ATTIME suspend function,
enable the Cnt Ac-S Z timestamp transfer mode.
The following table describes the route lists necessary for operation in a 3DC Cascade (Cnt Ac-S
Z x Cnt Ac-J Z) configuration.
Table 41 Required route list (3DC Cascade (Cnt Ac-S Z x Cnt Ac-J Z) configuration)
Route list needed in Business Continuity Manager Remote site
condition Intermediate site
condition Primary site
condition Host on which Business
Continuity Manager is
started
Primary → Intermediate → Remote Usable Usable Usable Primary host
Primary → Intermediate Unusable Usable Usable
Primary
#
Usable Unusable Usable
Unusable Unusable Usable
Remote
→ Intermediate → Primary
Usable Usable Usable Remote host
None Usable Unusable Usable
Remote
→ Intermediate
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 only if the Continuous Access Synchronous Z Consistency Preservation
Function is used.
Table 42 (page 156) shows how to prepare the configuration files at each site.
Table 42 How to Prepare the Configuration Files at each site (3DC Cascade (Cnt Ac-S Z x Cnt Ac-J
Z) Configuration)
How to Prepare Contents File Type
At the Secondary Site At the Primary Site
Perform a remote scan Perform a local scan The primary site configuration Disk configuration
definition file
Perform a remote scan Perform a remote scan The intermediary site configuration
Perform a local scan Perform a remote scan The remote site configuration
156 Configuration definitions