WARNING: File being created with same name as in Primary
Existing file may be overwritten
Errors in file /u01/app/oracle/diag/rdbms/slnngkdg/slnngkdg/trace/slnngkdg_pr00_2875.trc:
ORA-01119: error in creating database file '/u02/oradata/tps_data10.dbf'
ORA-27054: NFS file system where the file is created or resides is not mounted with correct options
Linux-x86_64 Error: 13: Permission denied
File #15 added to control file as 'UNNAMED00015'.
Originally created as:
'/u02/oradata/tps_data10.dbf'
Recovery was unable to create the file as:
'/u02/oradata/tps_data10.dbf'
MRP0: Background Media Recovery terminated with error 1274
Errors in file /u01/app/oracle/diag/rdbms/slnngkdg/slnngkdg/trace/slnngkdg_pr00_2875.trc:
ORA-01274: cannot add datafile '/u02/oradata/tps_data10.dbf' - file could not be created
这里提示无法创建/u02/oradata/tps_data10.dbf文件，检查发现在从库根本没用/u02目录，尝试创建
处理办法，创建相应的目录：
su - root
mkdir -p /u02/oradata
chown -R oracle:oinstall /u02
Wed Dec 04 16:50:15 2019
Errors in file /u01/app/oracle/diag/rdbms/slnngkdg/slnngkdg/trace/slnngkdg_dbw0_24235.trc:
ORA-01186: file 15 failed verification tests
ORA-01157: cannot identify/lock data file 15 - see DBWR trace file
ORA-01111: name for data file 15 is unknown - rename to correct file
ORA-01110: data file 15: '/u01/app/oracle/product/11.2.0.4/db_1/dbs/UNNAMED00015'
File 15 not verified due to error ORA-01157
MRP0: Background Media Recovery terminated with error 1111
Errors in file /u01/app/oracle/diag/rdbms/slnngkdg/slnngkdg/trace/slnngkdg_pr00_4577.trc:
ORA-01111: name for data file 15 is unknown - rename to correct file
ORA-01110: data file 15: '/u01/app/oracle/product/11.2.0.4/db_1/dbs/UNNAMED00015'
ORA-01157: cannot identify/lock data file 15 - see DBWR trace file
ORA-01111: name for data file 15 is unknown - rename to correct file
ORA-01110: data file 15: '/u01/app/oracle/product/11.2.0.4/db_1/dbs/UNNAMED00015'
Managed Standby Recovery not using Real Time Apply
Recovery Slave PR00 previously exited with exception 1111
MRP0: Background Media Recovery process shutdown (slnngkdg)
这里提示unnamed00015未知，因为dataguard在同步的时候要是从库的路径不存在,会尝试在../dbs/目录下创建unnamedXXXX这样的文件
处理办法:
shutdown immediate
startup mount
SQL> select status from v$instance;
STATUS
------------
MOUNTED
alter system set standby_file_management=manual;
alter database create datafile '/u01/app/oracle/product/11.2.0.4/db_1/dbs/UNNAMED00015' as '/u02/oradata/tps_data10.dbf';
不清楚数据文件的话，可以在主库通过如下查询找到文件路径：
Select Name,file#,creation_time From v$datafile Order By creation_time Desc;
alter system set standby_file_management=auto;
alter database recover managed standby database using current logfile disconnect from session;
select process,status from v$managed_standby;