HP XP Racks - Manual (Page 427)

13. From the primary site, execute the YKRESYNC DELTAJNL command for the delta resync pair.
•
YKQUERY
•
YKRESYNC DELTAJNL
•
YKEWAIT GOTO(DUPLEX)
If the command is successful, the Continuous Access Journal Z copy pair at the local site and
the remote site is automatically moved to the HOLD status (delta resync pair).
Operation is returned to normal.
NOTE: If during operation the status of a delta resync pair changes to HOLDTRNS, NODELTA,
or HOLDER, see “Actions to be Taken When the Delta Resync Function Cannot be Set Up or
Operated Successfully” (page 445) .
Operating procedure during a primary site storage system failure (with no information
lost from memory)
The following are the procedures to be performed when a failure, with no information lost from
memory, occurs at the primary site storage system.
Failover
The failover procedure to be performed when a failure, with no information lost from memory,
occurs at the primary site storage system is in the same as the failover procedure to be performed
when a failure, with information lost from memory, occurs in the primary site storage system. See
“Failover” (page 422) in “Operating procedure during a primary site storage system failure (with
information lost from memory)” (page 421) .
Failback
1. Recover the primary site storage system from failure.
2. From the local site, execute the YKDELETE command for the Continuous Access Journal Z
copy pair.
Using a Delta Resync Configuration 427