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Primary site
Primary host
Secondary site
Secondary host
Write instruction
|
| Issuing Read |
|
|
Primary |
| Journal command |
| Secondary |
|
|
| ||
data |
|
|
| data |
volume |
| Journal copy function |
| volume |
| Master | Restore |
| |
Journal obtain | journal |
| journal | Journal restore |
function | volume |
| volume | function |
Primary storage system |
| Secondary storage system |
Figure 2-1 UR Components for Fibre-Channel Connection
Journal Obtain
Journal obtain is the function to store the already stored data in the primary data volume as a
Chapter 2 About Universal Replicator Operations |