The SCP (state change pending) time is the interval that I/O from the host is suspended. Because the SCP time is shared between TrueCopy for Mainframe and Compatible FlashCopy® V2, make sure to take into account the amount of time required by both products when setting the value.
You can use the CCI raidcom modify remote_replica_opt with -cu and -scp_time to change the SCP time. The range is from 0 to 518,400 seconds (144 hours). After changing the setting, use the CCI raidcom get remote_replica_opt command to confirm the SCP time setting.