HP XP Racks - Manual (Page 525)

3. From the intermediate site, execute the YKRESYNC REVERSE command for the Continuous
Access Synchronous Z copy group container.
•
YKQUERY
•
YKRESYNC REVERSE
•
YKEWAIT GOTO(DUPLEX)
Change the configuration to a 4x4x4 Multi-Target configuration in which operation is performed
from the intermediate site.
Failback
1. Recover the host at the primary site from the failure.
2. Stop operation at the intermediate site.
Using a 4x4x4 Cascade Configuration 525