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Chapter 3 Preparing for Universal Replicator z/OS Operations 3-29
Hitachi Universal Replicator for IBM /OS User’s Guide
3. Execute the Business Continuity Manager YKSUSPND FORWARD
command on the URz pair to suspend the pair. After that, execute the
YKRESYNC FORWARD command to change the copy direction to the
original direction and re-establish the pair (see
Figure 3-14).
4. Execute the Business Continuity Manager YKSUSPND command on the
URz pair to suspend the pair (see
Figure 3-15).
5. Execute the Business Continuity Manager YKMAKE command on the SIz
pair to perform copying in the reverse direction (see
Figure 3-16).
6. Execute the Business Continuity Manager YKDELETE command on the SIz
pair to release the pair (see
Figure 3-17).
7. Execute the Business Continuity Manager YKMAKE command on the SIz
pair to perform copying in the original direction (see
Figure 3-18).
8. Execute the Business Continuity Manager YKSUSPND command on the SIz
pair to put the pair in Split status (see
Figure 3-19).
9. Execute the Business Continuity Manager YKRESYNC command on the
URz pair to resynchronize the pair (see
Figure 3-20).
URz
SIz
S-VOL in
Split status
T
-VOL in
Split status
Primary data
volume
Secondary
data volume
Master journal
volume
Restore journal
volume
MCU
RCU
Figure 3-12 Restoring a SIz S-VOL - Step 1
URz
Secondary data
volume
Primary data
volume
Restore journal
volume
Master journal
volume
RCU
MCU
Figure 3-13 Restoring a SIz S-VOL - Step 2