HP StorageWorks XP Remote Web Console Software User Manual
Page 105
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 44 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.
As a result, the former secondary volume in the URz secondary site changes to the primary data
volume. Also, the former primary volume in the primary site changes to the secondary data volume
(see the upper-right picture in
NOTE:
YKRESYNC is a command for re-establishing a pair
3.
Stop business tasks at the URz secondary site.
4.
Use Business Continuity Manager to execute the YKSUSPND FORWARD command on the URz
pair.
NOTE:
YKSUSPND is a command for splitting a pair and stopping the copy operation temporarily.
5.
Use the primary volume in the primary site to resume your business tasks.
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