ORA-02644
Shard 'string' already exists in specified rack 'string'.
Cause
The specified rack already contained another shard in the same Oracle Data Guard configuration.
Action
Specify a different value for the rack parameter.
ORA-02644
Shard 'string' already exists in specified rack 'string'.
Cause
The specified rack already contained another shard in the same Oracle Data Guard configuration.
Action
Specify a different value for the rack parameter.
ORA-02644
Shard 'string' already exists in specified rack 'string'.
Cause
The specified rack already contained another shard in the same Oracle Data Guard configuration.
Action
Specify a different value for the rack parameter.