Oracle® Database 11g / 12c / 18c error codes ORA-12342: open mounts exceeds limit set on the OPEN_MOUNTS parameter

ORA-12342: open mounts exceeds limit set on the OPEN_MOUNTS parameter

Oracle Error Code: ORA-12342

Cause: The number of currently open mounts exceeds the value you specified on the OPEN_MOUNTS parameter.

Action: Increase the value of the OPEN_MOUNTS parameter so that it accommodates the maximum possible number of open mounts to secondary databases.