HP XP P9000 Business Continuity Manager User Guide (T5253-96086, November 2013)

Failover
The failover procedure to be performed when a failure, with no information lost from memory,
occurs in the primary site storage system is the same as the failover procedure to be performed
when a failure, with information lost from memory, occurs in the primary site storage systemSee
“Operating procedure during a primary site storage system failure (with information lost from
memory)” (page 509).
Failback
1. Recover the primary site storage system from the failure.
2. Stop operation at the intermediate site.
3. From the primary site, execute the YKRESYNC REVERSE command for the Continuous Access
Synchronous Z copy group container.
• YKQUERY
• YKRESYNC REVERSE
• YKEWAIT GOTO(DUPLEX)
Using a 4x4x4 Cascade Configuration 515