HP XP Racks - Manual (Page 71)

Table 15 Continuous Access Synchronous Z copy group attributes that can be set when using
the Preserve Mirror function (continued)
Description Possibility of the setting Items displayed on the Copy Group
Attributes panel
Specifies the differential-data
management unit. Can be set to only TRK. DIF UNIT
Specifies whether to use the
Open/MF Consistency Preservation
function. N OPEN/MF
Legend: Y: Can be set; N: Cannot be set
•
Configurations cannot be created in which Continuous Access Synchronous Z copy pairs that
use the Preserve Mirror function are combined with other copy pairs.
Sample replication product combinations
Different replication products can be used concurrently for the same volume. Figure 32 (page 71)
through Figure 36 (page 72) give examples of basic replication product combinations.
Figure 32 3DC Cascade (Cnt Ac-S Z x Cnt Ac-J Z) configuration
Figure 33 A 3DC Multi-target (Cnt Ac-S Z x Cnt Ac-J Z) configuration
Figure 34 Same configuration for BC Z P-VOL and Cnt Ac-S Z, TCA, and Cnt Ac-J Z P-VOL
Sample replication product combinations 71