Failover, Failback, Failover failback – HP XP P9500 Storage User Manual
Page 396: Operating procedure
6.
From the primary site, execute the YKRESYNC FORWARD command for the Continuous Access
Journal Z copy pair between the primary site and remote site 2.
•
YKQUERY
•
YKRESYNC FORWARD
•
YKEWAIT GOTO(DUPLEX)
7.
Resume operation at the primary site.
Operation returns to normal.
Operating procedure during a storage system failure (with no information lost from
memory) at the primary site and remote site 1
Failover
If a storage system failure, with no information lost from memory, occurs at the primary site and
remote site 1, perform the same failover procedure as the one used when a storage system failure,
with no information lost from memory, occurs at those sites. See
in
.
Failback
If a storage system failure, with no information lost from memory, occurs at the primary site and
remote site 1, perform the same failback procedure as the one used when a storage system failure,
with no information lost from memory, occurs at those sites. For details, see
in
“Operating procedure during a storage system failure (with information lost from memory)
(volatile) at the primary site and remote site 1” (page 393)
.
In step 3, however, you do not have to register the journal group, and execute the YKRESYNC
command instead of the YKMAKE command.
396 Maintenance and troubleshooting operations