Table 20 Operation procedure of 4x4x4 Multi-Target configuration with Delta Resync
Difference from 3DC
Multi-Target configuration
ConfigurationDescriptionOperation procedure#
Preparation
Arbitration paths and
command devices for 4x4
configuration are necessary.
1DCHardware setup1
• Bi-directional paths must be set
between P-L, P-R and L-R sites.
• One ore more Journal groups in
each site.
• Arbitration paths and arbitration
command devices.
A command device is
necessary for each DKC.
1DCCreate a route list of 3DC
Multi-Target configuration that
Route list2
contains definition or routes that start
from each site. This route list is
equivalent to that of 3DC Multi-Target
configuration with Delta Resync.
Once a route list is defined, establish
routes according to the route list.
Cnt Ac-S must be with C/T ID,
and Cnt Ac-J must be of 4x4
1DCCreate a copy group definition file
for TC between P-site and L-site
Definition of copy pairs3
Cnt Ac-J. See Table 18 (page
12) for more details.
(G1/G4), 4x4 Cnt Ac-J between
P-site and R-site (G2/G5), and 4x4
Cnt Ac-J between L-site and R-site
(G3/G6).
None2DCEstablish Cnt Ac-S copy group
(G1/G4).
Establish Cnt Ac-S copy
pairs (G1/G4)
4
None3DCEstablish Cnt Ac-J copy group
(G2/G5).
Establish Cnt Ac-J copy
pairs (G2/G5)
5
None3DCEstablish Delta Resync Cnt Ac-J copy
group (G3/G6) into HOLD status.
Establish Delta Resync Cnt
Ac-J copy pairs (G3/G6)
6
Normal operation
None3DCKeep DUPLEX status on both Cnt Ac-S
(G1/G4) and Cnt Ac-J (G2/G5)
copy groups.
....7
Installation instructions
Installation precautions
Please review the following manual references for installation:
• Before starting installation, please ensure that there are sufficient dataset capacity and the number
of directories in the distribution libraries and the target libraries that are required for installation.
• See the installation chapter of the HP P9000 for Business Continuity Manager Software Installation
Guide for full details.
Compatibility/Interoperability
System configuration
1. BCM supports 2DC configurations (1:1). By making multiple units of 2DC configurations, it is
possible to create N:N configuration.
2. BCM supports 3DC (Cnt Ac-S and Cnt Ac-J) configurations (Cascade configuration and Multi-Target
configuration). Note that 3DC configurations are supported only when all DKCs in the
14 Installation instructions