HP XP Racks - Manual (Page 231)

The journal group is registered in the EXCTG of the storage system when the YKMAKE command
is executed. If a copy pair has already been created, executing the YKMAKE SELECT(COND)
command simply registers the journal group in the EXCTG.
This subsection describes the procedures to define a 4x4 configuration for each of the following
cases:
•
Defining a new 4x4 configuration
•
Expanding to a 4x4 configuration by adding storage systems to a 2DC configuration
•
Changing to a 4x4 configuration without changing the current storage system
•
Adding a new journal group to a 4x4 configuration
•
Adding an existing journal group to a 4x4 configuration
The following is the legend used for the figures represented in this subsection.
For details on each definition procedure in this section, see the following:
•
Procedure for a Local Scan
For details, see “Performing a local scan to acquire volume information” (page 125) . For details
on how to operate the ISPF panels, see “Local scan procedure” (page 583) .
•
Procedure for defining a path set and establishing a logical path
For details, see “Establishing a logical path” (page 127) . For details on how to operate the
ISPF panels, see “Creating a path set” (page 591) and “Establishing a logical path” (page 605) .
•
Procedure for defining the route list
For details, see “Defining a route list” (page 606) . For details on how to operate the ISPF panels,
see “Local scan procedure” (page 583) .
•
Procedure for registering a command device
For details, see “Registering a command device in a storage system” (page 634) . For details
on how to operate the ISPF panels, see “Local scan procedure” (page 583) .
•
Procedure for defining a copy group
For details on how to operate the ISPF panels for defining a copy group container, adding a
consistency group, and defining an EXCTG, see
“Local scan procedure” (page 583) , “Adding
a consistency group” (page 651) , and “Defining an EXCTG” (page 653) .
Defining a new 4x4 configuration
To define a new 4x4 configuration, perform the following procedure.
Setting up the Storage System
Set up the following items by using Remote Web Console.
1.
Configure an arbitration command device on the subordinate disk controller.
2. Set up an arbitration path from the supervisor disk controller to the subordinate disk controller.
3. Map the arbitration command device on the subordinate disk controller to the supervisor disk
controller (setup of the remote command device).
Defining a 4x4 configuration 231