Failback – HP XP Racks User Manual
Page 353
4.
Start operation at the intermediate site.
Operation in a 2DC configuration starts between the intermediate site and the remote site.
Failback
1.
Terminate primary site storage system maintenance.
2.
From the intermediate site, execute the YKRESYNC REVERSE command for the Continuous
Access Journal Z copy pair between the primary site and the intermediate site.
•
YKQUERY
•
YKRESYNC REVERSE
•
YKEWAIT GOTO(DUPLEX)
3.
Stop operation at the intermediate site.
4.
From the primary site, execute the YKSUSPND FORWARD command for the Continuous Access
Journal Z copy pair between the primary site and the intermediate site.
•
YKQUERY
•
YKSUSPND FORWARD
•
YKEWAIT GOTO(SUSPEND)
5.
From the primary site, execute the YKRESYNC FORWARD command for the Continuous Access
Journal Z copy pair between the primary site and the intermediate site.
When the command is executed, the status of the Continuous Access Journal Z copy pair
between the intermediate site and the remote site changes from DUPLEX to SUSPOP.
Using a 3DC Cascade (Cnt Ac-J Z x Cnt Ac-J Z) configuration 353