This error is encountered when Creating a Standby database.
Creating a Standby Database failed with ORA-27125.
This issue is observed in Linux environment and may be caused by several reasons.In ODA KVM environment the default value of the primary DB use_large_pages parameter is ONLY. Dbvisit Standby uses the same init parameter values for the standby DB spfile. Change this value to either TRUE or FALSE in Dbvisit GUI when specifying the details of the CSD process to be started.