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3-52 Chapter 3 Preparing for Universal Replicator z/OS Operations
Hitachi Universal Replicator for IBM /OS User’s Guide
To transfer your business tasks to the URz secondary site, follow the
procedure below. Business Continuity Manager is used in this procedure:
1. Use Business Continuity Manager to execute the YKSUSPND REVERSE
command on the journal group corresponding to the URz pair, which
extends between the primary site and the URz secondary site.
Note: YKSUSPND is a command for splitting a pair and stopping the copy
operation temporarily.
2. Use volumes in the URz primary site to resume your business tasks.
Master
JNLVOL
Restore
JNLVOL
Primary site
URz
Sec. data VOL
S-VOL
JNLVOL
Master
JNLVOL
Restore
JNLVOL
Primary site
URz
Sec. data VOL
S-VOL
JNLVOL
業務
Tasks
業務Tasks
TCz
Synchronous
TCz
Synchronous
TCz Synchronous
secondary site
TCz Synchronous
secondary site
URz
secondary site
URz
secondary site
P-VOL/Prm.
data VOL
P-VOL/Prm.
data VOL
P-VOL: primary volume
S-VOL: secondary volume
Prm data VOL: primary data volume
Sec. data VOL: secondary data volume
JNLVOL: journal volume
Figure 3-29 Recovering from Failures in the Primary Site and the TCz
Synchronous Secondary Site
Transferring Business Tasks from the URz Secondary Site to the Primary
Site
If you follow the instructions in the previous section and then remove failures
from the primary site and the TCz Synchronous secondary site, 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. Use Business Continuity Manager to execute the YKDELETE command on
the TCz Synchronous pair.
Note: YKDELETE is a command for releasing a pair.
2. Reverse the copy direction of the URz pair. To do this, use the Business
Continuity Manager to execute the YKRESYNC REVERSE command on the
journal group corresponding to the URz pair.