HP XP Racks - Manual (Page 391)

Operating procedure during a primary site storage system failure (with no information
lost from memory)
Failover
If a failure, with no information lost from memory, occurs in the primary site storage system, perform
the same failover procedure as the one used when a failure, with no information lost from memory,
occurs in the primary site storage system. See
“Failover” (page 386) in “Operating procedure during
a primary site storage system failure (with information lost from memory” (page 386) .
Failback
If a failure, with no information lost from memory, occurs in the primary site storage system, perform
the same failback procedure as the one used when a failure, with no information lost from memory,
occurs in the primary site storage system. See
“Failback” (page 387) in “Operating procedure
during a primary site storage system failure (with information lost from memory” (page 386) .
Operating procedure during a storage system failure (with information lost from
memory) (volatile) at the primary site and remote site 1
The following are the procedures that must be performed when a storage system failure, with
information lost from memory, occurs at the primary site and remote site 1.
Failover
1. From remote site 2, execute the YKSUSPND REVERSE command for the Continuous Access
Journal Z copy pair between the primary site and remote site 2.
•
YKQUERY
•
YKSUSPND REVERSE
•
YKEWAIT GOTO(SUSPEND) NOINVALIDCHECK
Using a 3DC Multi-Target (Cnt Ac-J Z x Cnt Ac-J Z) configuration 391