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Chapter 3 Preparing for Universal Replicator z/OS Operations 3-47
Hitachi Universal Replicator for IBM /OS User’s Guide
Master
JNLVOL
Restore
JNLVOL
URz
Sec. data VOL
R-VOL
JNLVOL
Master
JNLVOL
Restore
JNLVOL
URz
Sec. data VOL
JNLVOL
業務Tasks
業務Tasks
TCz Synchronous
secondary site
TCz Synchronous
secondary site
TCz
Synchronous
TCz
Synchronous
URz
secondary site
URz
secondary site
Primary site
Primary site
R-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:
j
ournal volume
M-VOL/Prm.
data VOL
M-VOL
Figure 3-26 Transferring Business Tasks from TCz Secondary Site to the
Primary Site (in 3DC Cascading Configuration)
Transferring Business Tasks from TCz Secondary Site to the Primary Site
(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. Use Business Continuity Manager to execute the YKDELETE command on
the current URz pair, which extends between the TCz secondary site and
the URz secondary site.
Note: YKDELETE is a command for releasing a pair.
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.
Note: YKSUSPND is a command for splitting a pair and stopping the copy
operation 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, so that the copy direction of the
pair will be returned to its original direction.
Note: YKRESYNC is a command for re-establishing a pair.