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Data transfer speed
Data transfer speed of journal volumes
Data transfer speed
between the MCU and the RCU
Data transfer speed between hosts and the MCU
Time
Normal status | Temporary increase in |
| data to be transferred |
Figure 3-33 Data Transfer Speed with URz (Data Transfer Speed between the Primary Storage System and the Secondary Storage System)
Bandwidth for Data Transfer Paths
The bandwidth (i.e., the data transfer speed) of data transfer paths between the primary storage system and the secondary storage system depends on the user's environment. The bandwidth must exceed the data transfer speed in "normal status" mentioned earlier.
DKC Journal Transfer Speed
The journal transfer speed of the DKC depends on the number of paths used for transferring journals. The number of paths for transferring journals must be so enough that the journal transfer speed exceeds the data transfer speed in the "normal status" mentioned earlier. The maximum number of paths for each pair of the primary DKC and the secondary DKC is 8.
Configuration that TagmaStore USP/NSC and USP V is Connected
URz can execute remote copy operations in a system configuration that USP V and TagmaStore USP/NSC is connected. Specifically, the following configurations are supported.
Chapter 3 Preparing for Universal Replicator z/OS Operations |