HP XP Racks - Manual (Page 501)

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YKQUERY
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YKRESYNC REVERSE
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YKEWAIT GOTO(DUPLEX)
5. Perform primary site host maintenance.
Change the configuration to a 4x4x4 Multi-Target configuration in which operation is performed
from the intermediate site.
Failback
1. Terminate primary site host maintenance.
2. Stop operation at the intermediate site.
3. From the primary site, execute the YKSUSPND FORWARD command for the Continuous Access
Synchronous Z copy group container.
Using a 4x4x4 Cascade Configuration 501