HP XP7 Business Continuity Manager Release Notes (TK954-96001)

Table 17 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 setup
• Bi-directional paths must be set
between P-L, P-R and L-R sites.
• One or 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 contains definition or
Route list
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 (G1/G4),
Definition of copy pairs
Cnt Ac-J. See Table 15 (page
16) for more details.
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)
None3DCEstablish Cnt Ac-J copy group (G2/G5).Establish Cnt Ac-J copy
pairs (G2/G5)
None3DCEstablish Delta Resync Cnt Ac-J copy
group (G3/G6) into HOLD status.
Establish Delta Resync Cnt
Ac-J copy pairs (G3/G6)
Normal operation
None3DCKeep DUPLEX status on both Cnt Ac-S
(G1/G4) and Cnt Ac-J (G2/G5) copy
groups.
....
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