The following figures provide configuration examples when ShadowImage for Mainframe, TrueCopy for Mainframe, and Universal Replicator for Mainframe are used.
For additional information about 3DC multi-target configurations, see the Universal Replicator User Guide and the TrueCopy® User Guide.
Example of a pair shared by URz S-VOL and TCz P-VOL
Example of a pair shared by TCz S-VOL and URz P-VOL
For the above configurations, you cannot perform Quick Restore for SIz pairs.
The following image illustrates a 3DC multi-target configuration with the following pairs:
- Universal Replicator for Mainframe pair
- Universal Replicator for Mainframe delta resync pair
- ShadowImage for Mainframe pair
- TrueCopy for Mainframe pair
Example of combining an SIz pair, TCz pair, and URz pair in a 3DC multi-target configuration
The following table describes ShadowImage for Mainframe operations according to the status of TCz pairs and URz delta resync pairs in the storage system of the TCz secondary site.
|
TCz Pair Status |
URz delta resync pair mirror status |
ShadowImage for Mainframe operation |
|||||||
|---|---|---|---|---|---|---|---|---|---|
|
Create pairs |
Split pairs |
Suspend copy operation |
Release pairs |
Resync pairs |
|||||
|
Normal copy |
Quick resync |
Reverse copy |
Quick restore |
||||||
|
PAIR |
HOLD |
YES |
YES |
YES |
YES |
YES |
YES |
NO |
NO |
|
COPY |
YES |
YES |
YES |
YES |
YES |
YES |
NO |
NO |
|
|
PSUS/ SSUS/ PSUE |
YES |
YES |
YES |
YES |
YES |
YES |
YES |
NO |
|
|
PAIR |
HLDE |
YES |
YES |
YES |
YES |
YES |
YES |
NO |
NO |
|
COPY |
YES |
YES |
YES |
YES |
YES |
YES |
NO |
NO |
|
|
PSUS/ SSUS/ PSUE |
YES |
YES |
YES |
YES |
YES |
YES |
YES |
NO |
|
The following table describes ShadowImage for Mainframe operations according to the status of URz pairs and URz delta resync pairs in the storage system of the URz secondary site.
|
URz Pair Status |
URz delta resync pair mirror status |
ShadowImage for Mainframe operation |
|||||||
|---|---|---|---|---|---|---|---|---|---|
|
Create pairs |
Split pairs |
Suspend copy operation |
Release pairs |
Resync pairs |
|||||
|
Normal copy |
Quick resync |
Reverse copy |
Quick restore |
||||||
|
PAIR |
HOLD |
YES |
YES |
YES |
YES |
YES |
YES |
NO |
NO |
|
COPY |
YES |
YES |
YES |
YES |
YES |
YES |
NO |
NO |
|
|
PSUS/ SSUS/ PSUE |
YES |
YES |
YES |
YES |
YES |
YES |
YES |
NO |
|
The following table describes ShadowImage for Mainframe operations according to the status of TCz pairs and URz pairs in the TCz and URz local storage systems.
| TCz pair status | URz pair status | ShadowImage for Mainframe operation | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Create pairs | Split pairs | Suspend copy | Release pairs | Resync pairs | |||||
| Normal copy | Quick resync | Reverse copy | Quick restore | ||||||
| PAIR | PAIR | YES | YES | YES | YES | YES | YES | NO | NO |
| COPY | YES | YES | YES | YES | YES | YES | NO | NO | |
|
PSUS/ SSUS/ PSUE |
YES | YES | YES | YES | YES | YES | NO | NO | |
| COPY | PAIR | YES | YES | YES | YES | YES | YES | NO | NO |
| COPY | YES | YES | YES | YES | YES | YES | NO | NO | |
| PSUS/ SSUS/ PSUE | YES | YES | YES | YES | YES | YES | NO | NO | |
| PSUS/ SSUS/ PSUE | PAIR | YES | YES | YES | YES | YES | YES | NO | NO |
| COPY | YES | YES | YES | YES | YES | YES | NO | NO | |
| PSUS/ SSUS/ PSUE | YES | YES | YES | YES | YES | YES | YES | NO | |