HP StorageWorks XP Remote Web Console Software - Manual (Page 102)

To create this pair, use Business Continuity Manager to execute the YKMAKE command on the
journal group corresponding to that pair.
When the pair is created, the system configuration returns to the original 3DC multi-target
configuration.
NOTE:
YKMAKE is a command for establishing a pair.
Master
JNLVOL
Restore
JNLVOL
URz Sec. data VOL
R-VOL
JNLVOL
R-VOL
JNLVOL
Restore
JNLVOL
URz
Sec. data VOL
Master
JNLVOL
業務 Tasks
業務 Tasks
Primary site Primary site
TCz
Synchronous
TCz
Synchronous
TCz Synchronous
secondary site TCz Synchronous
secondary site
URz
secondary site URz
secondary site
M-VOL/Prm.
data VOL
M-VOL/Prm.
data VOL
M-VOL: main volume
R-VOL: remote volume
Prm data VOL: primary data volume
Sec. data VOL: secondary data volume
JNLVOL: journal volume
Figure 42 Transferring Business Tasks from TCz Secondary Site to the Primary Site (in
3DC Multi-target Configuration)
Transferring Business Tasks from TCz Secondary Site to the Primary Site (When Delta Resync
Operation is Performed in 3DC multi-target configuration)
If you remove failures from the primary site and other locations and then the system is changed to 3DC
multi-target configuration, you can transfer your business tasks back to the primary site.
To transfer your business tasks back to the primary site, follow the procedure below. Business Continuity
Manager is used in this procedure:
1. If the TCz Synchronous pair is suspended, use Business Continuity Manager to execute the
YKRESYNC REVERSE command on the current TCz Synchronous pair.
The copy direction of the TCz Synchronous pair will be reversed.
2. Stop business tasks at the TCz Synchronous secondary site.
3. Use Business Continuity Manager to execute the YKSUSPND FORWARD command on the TCz
Synchronous pair.
TCz Synchronous pair will be split and the copy operation stops temporarily.
4. Use the main volume in the primary site to resume your business tasks.
5. Use Business Continuity Manager to execute the YKRESYNC FORWARD command on the TCz
Synchronous pair.
The copy direction of the pair will be returned to its original direction.
6. Perform delta resync operation on the volume in the TCz Synchronous secondary site.
The status of the data volumes of URz pair changes as explained in the following table.
102 Preparing for Universal Replicator z/OS Operations