HP XP Racks User Manual
Page 271
Table 84 Storage system setting items (4x4x4 Delta Resync)
Setting
Description
Item
Use Remote Web
Console for the setup.
At least one arbitration command device is required for each subordinate disk
controller at the remote site.
Arbitration
command device
An arbitration path (unidirectional) is required from the supervisor disk controller
at the remote site to each subordinate disk controller.
Arbitration path
The remote command device is set by mapping an arbitration command device to
the supervisor disk controller.
Remote command
device
A journal group is required for each storage system (Timer type: SYSTEM).
Journal group
Use Remote Web
Console or Business
Logical path
•
An inter-control unit logical path (bidirectional) must be established between the
primary site and the local site.
Continuity Manager for
the setup.
•
An inter-disk controller logical path (bidirectional) must be established between
the primary site and the remote site.
•
An inter-disk controller logical path (bidirectional) must be established between
the local site and the remote site.
Use Business Continuity
Manager for the setup.
Command devices that can be used for either of the route lists below are required
(See
).
Command device
•
Route list required when all sites are available
•
Route list used when a failure occurs at a site (recommended)
Use Remote Web
Console for the setup.
A Delta Resync control path (bidirectional) must be established between sites.
Delta Resync
control path
Preparing the configuration files (4x4x4 Delta Resync configuration)
You need to install Business Continuity Manager UR 4x4 Extended CTG.
The following table describes the configuration files required for using Business Continuity Manager
in a 4x4x4 Delta Resync configuration.
Table 85 Required configuration files (4x4x4 Delta Resync configuration)
Remarks
Description
Item
--
The disk configuration definition file is required at the primary, local, and remote
sites.
Disk configuration
definition file
This item is not necessary
if you use Remote Web
A path set for the following logical paths is required:
Path set definition
file
•
An inter-control unit logical path (bidirectional) between the primary site and
the local site
Console to set up logical
paths.
•
An inter-disk controller logical path (bidirectional) between the primary site
and the remote site
•
An inter-disk controller logical path (bidirectional) between the local site and
the remote site
Set this up before starting
a copy operation.
Either of the following route lists is required (See
).
Route list
definition file and
•
Route list that is required when all sites are available
command device
definition file
•
Route list used when a failure occurs at a site (recommended)
Set this up before starting
a copy operation.
A Cnt Ac-S Z copy group with the following attributes is required between the
primary site and the local site:
Copy group
definition file
•
A copy group container for which the Cnt Ac-S Z Consistency Preservation
Function was used
•
A copy group that was created by dividing the above copy group container
by storage system for error handling and for which the Cnt Ac-S Z Consistency
Preservation Function was used
Defining a 4x4x4 Cascade Configuration
271