The following Fibre Channel configurations are supported for TrueCopy for Mainframe:
You can use CCI to set port topology.
For direct and switch connections, host I/O response time can be improved on long distance connections (longwave, up to 10 km for direct connection and 100 km for switch connection) by improving the I/O response time between storage systems and by using host mode option (HMO) 51, the Round Trip Set Up option. The firmware supporting this function must be installed on both the primary and secondary storage systems.
A Hitachi Vantara-approved channel extender is required.