The purpose of an XRC migration session is to migrate volumes from
one location to another. The migration can be between local devices
or between remote sites. The XRC migration session ensures that data
for all volumes is consistent when the migration is complete. It is
not important to be able to recover the data at all times. A typical
migration is of relatively short duration.
Note: The XCOUPLE ADD command
fails if you specify SESSIONTYPE(MIGRATE) on the XSTART command. If
you restart a coupled session and you specify SESSIONTYPE(MIGRATE),
the MIGRATE option will be ignored.
XRC might be the best choice for moving your data to other disk
devices, depending on the device types of the primary and secondary
volumes.