|
|
|
|
|
|
|
|
|
| Error Reporting |
|
|
|
|
|
|
|
|
| |
|
|
|
| Host processor |
|
|
|
| Communications |
|
| Host processor |
| |||||||
|
|
| at the primary site |
|
|
|
|
|
|
|
| at the secondary site |
| |||||||
|
|
|
|
|
|
| URz volume pair |
|
|
|
|
| ||||||||
|
|
| (MVS) Time stamping function |
|
|
|
|
| (MVS) Time stamping function |
|
| |||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Storage system |
| Remote copy |
|
|
| Disk subsystem |
|
|
|
| |||||
|
|
|
| Primary subsystem (LDKC) |
|
| Storage system (LDKC) |
|
|
|
| |||||||||
|
|
|
|
| connection |
|
|
|
| |||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| CHT |
|
|
|
|
|
|
|
|
|
|
|
|
| CHT |
|
|
|
|
|
|
|
| MCU | Initiator port |
|
|
| RCU target port | RCU |
|
|
|
|
| ||||
|
|
|
|
|
|
|
|
|
|
|
|
| ||||||||
|
|
|
|
|
|
|
|
|
|
|
|
| ||||||||
Primary | Master | Copy direction | Restore |
Secondary | |||
data | journal | L | journal |
data | |||
volume | volume | volume | volume |
SVP | RCU target port |
|
| Initiator port | SVP |
|
| ||||
|
|
|
|
|
|
Master journal group
Internal LAN (TCP/IP)
Storage Navigator computer
Restore journal group
Storage Navigator computer
Figure 2-2 URz components
Figure 2-3 shows the plural secondary storage systems connection configuration of URz. By connecting one primary storage system with more than one secondary storage system, you can create a volume pair that has a one-to-one relationship for each journal group.
Chapter 2 About Universal Replicator Operations |
