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