HP XP7 Business Continuity Manager User Guide (TK954-96005)

Table 81 Required route list (4x4x4 Cascade configuration) (continued)
Route list needed in Business Continuity ManagerRemote site
condition
Intermediate site
condition
Primary site
condition
Host on which Business
Continuity Manager is
started
Remote → IntermediateUsableUsableUnusable
NoneUsableUnusableUnusable
Legend:
Usable: The target site can be used.
Unusable: The target site cannot be used because of an error.
# This is required for the Continuous Access Synchronous Z Consistency Preservation
Function.
The following table describes how to prepare the configuration files at each site.
Table 82 How to Prepare Configuration Files at Each Site (4x4x4 Cascade)
How to prepareContentsFile type
At the remote siteAt the intermediate
site
At the primary site
Transfer from the
primary site.
Transfer from the
primary site.
Perform a local scan.The primary site configurationDisk configuration
definition file
Transfer from the
intermediate site.
Perform a Local Scan.Transfer from the
intermediate site.
The intermediate site configuration
Perform a Local Scan.Transfer from the
remote site.
Transfer from the
remote site.
The remote site configuration
Not requiredNot requiredDefine a path set.A Primary → Intermediate
inter-control unit logical path
Path set definition
file
Not requiredDefine a path set.Not required
• An Intermediate → Primary
inter-control unit logical path
• An Intermediate → Remote
inter-disk controller logical path
Define a path set.Not requiredNot requiredA Remote → Intermediate inter-disk
controller logical path
Not requiredNot requiredDefine a route list.A Primary → Intermediate → Remote
route/command device
Route list
definition
file/command
Not requiredDefine a route list.Not required
• An Intermediate → Primary
route/command device
device definition
file
• An Intermediate → Remote
route/command device
Define a route list.Not requiredNot requiredA Remote → Intermediate → Primary
route/command device
Transfer from the
primary site.
Transfer from the
primary site.
Define a copy group.A Continuous Access Synchronous
Z copy group
Copy group
definition file
Define a copy group.A Continuous Access Journal Z copy
group
Definition procedure (4x4x4 Cascade)
Basically, a 4x4x4 Cascade configuration is defined with the following procedure.
Defining a 4x4x4 Cascade Configuration 243