You can perform ShadowImage for Mainframe operations when ShadowImage for Mainframe and Universal Replicator for Mainframe are used in a 3DC cascade configuration.
The following tables specify whether SIz operations can be performed when URz volumes are shared with SIz volumes in a 3DC cascade configuration.
Table. 3DC cascade: Sharing a URz P-VOL with an SIz P-VOL on the primary storage system
| URz pair status (P-VOL) |
ShadowImage for Mainframe operation |
| Create pair |
Split pair |
Suspend pair |
Release pair |
Resync pair |
| Normal copy |
Quick resync |
Reverse |
Quick restore |
| 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 |
Table. 3DC cascade: Sharing a URz P-VOL with an SIz S-VOL on the primary storage system
| URz pair status (P-VOL) |
ShadowImage for Mainframe operation |
| Create pair |
Split pair |
Suspend pair |
Release pair |
Resync pair |
| Normal copy |
Quick resync |
Reverse |
Quick restore |
| PAIR |
NO |
NO |
YES |
YES |
NO |
NO |
NO |
NO |
| COPY |
NO |
NO |
YES |
YES |
NO |
NO |
NO |
NO |
| PSUS/SSUS/PSUE |
NO |
YES |
YES |
YES |
YES |
YES |
YES |
NO |
Table. 3DC cascade: Sharing a URz S-VOL or P-VOL with an SIz P-VOL on the intermediate storage system
| URz pair status (S-VOL) |
URz pair status (P-VOL) |
ShadowImage for Mainframe operation |
| Create pair |
Split pair |
Suspend pair |
Release pair |
Resync pair |
| Normal copy |
Quick resync |
Reverse |
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 |
COPY |
YES |
YES |
YES |
YES |
YES |
YES |
NO |
NO |
| PSUS/SSUS/PSUE |
YES |
YES |
YES |
YES |
YES |
YES |
NO |
NO |
| PSUS/SSUS/PSUE |
PSUS/SSUS/PSUE |
YES |
YES |
YES |
YES |
YES |
YES |
YES |
NO |
Table. 3DC cascade: Sharing a URz S-VOL with an SIz P-VOL on the secondary storage system
| URz pair status (S-VOL) |
ShadowImage for Mainframe operation |
| Create pair |
Split pair |
Suspend pair |
Release pair |
Resync pair |
| Normal copy |
Quick resync |
Reverse |
Quick restore |
| 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 |