Preparing
1.
From the primary site, execute the YKSUSPND FORWARD command for the Continuous Access
Synchronous Z copy pair.
YKQUERY
YKSUSPND FORWARD
YKEWAIT GOTO(SUSPEND)
2.
Start local site storage system maintenance.
Change the configuration to a 2DC configuration in which operation is performed from the
primary site.
306 Maintenance and Troubleshooting Operations