Restore e Recover Database
Il db "primary" è un container mentre il pluggable database che contiene il catalogo, su un altro server, è "rcatpdb" e il pdb che contiene il darafile 23 è "pdb1".
[oracle@rmancat ~]$ rman target sys/system@primary catalog rcatown/rcatown@rcatpdb
Recovery Manager: Release 12.2.0.1.0 - Production on Thu Mar 18 16:17:50 2021
Copyright (c) 1982, 2017, Oracle and/or its affiliates. All rights reserved.
connected to target database: ORCL (DBID=1590558615)
connected to recovery catalog database
RMAN> report schema;
Report of database schema for database with db_unique_name ORCL
List of Permanent Datafiles
===========================
File Size(MB) Tablespace RB segs Datafile Name
---- -------- -------------------- ------- ------------------------
1 800 SYSTEM YES /u01/app/oracle/oradata/orcl/system01.dbf
3 550 SYSAUX NO /u01/app/oracle/oradata/orcl/sysaux01.dbf
4 70 UNDOTBS1 YES /u01/app/oracle/oradata/orcl/undotbs01.dbf
5 250 PDB$SEED:SYSTEM NO /u01/app/oracle/oradata/orcl/pdbseed/system01.dbf
Cancellare il datafile system del pdb SEED dal database primary.
[oracle@primary ~]$ rm /u01/app/oracle/oradata/orcl/pdbseed/system01.dbf
Ritorniamo sul catalog e verifichiamo che il database non è più valido cioè può essere "backuppato".
RMAN> list failure;
Database Role: PRIMARY
no failures found that match specification
RMAN> validate database;
Starting validate at 18-MAR-21
using channel ORA_DISK_1
channel ORA_DISK_1: starting validation of datafile
channel ORA_DISK_1: specifying datafile(s) for validation
input datafile file number=00001 name=/u01/app/oracle/oradata/orcl/system01.dbf
input datafile file number=00003 name=/u01/app/oracle/oradata/orcl/sysaux01.dbf
input datafile file number=00004 name=/u01/app/oracle/oradata/orcl/undotbs01.dbf
input datafile file number=00007 name=/u01/app/oracle/oradata/orcl/users01.dbf
channel ORA_DISK_1: validation complete, elapsed time: 00:00:03
List of Datafiles
=================
File Status Marked Corrupt Empty Blocks Blocks Examined High SCN
---- ------ -------------- ------------ --------------- ----------
1 OK 0 17186 102402 2850461
File Name: /u01/app/oracle/oradata/orcl/system01.dbf
Block Type Blocks Failing Blocks Processed
---------- -------------- ----------------
Data 0 67765
Index 0 12607
Other 0 4842
File Status Marked Corrupt Empty Blocks Blocks Examined High SCN
---- ------ -------------- ------------ --------------- ----------
3 OK 0 19035 70430 2850558
File Name: /u01/app/oracle/oradata/orcl/sysaux01.dbf
Block Type Blocks Failing Blocks Processed
---------- -------------- ----------------
Data 0 7444
Index 0 6819
Other 0 37102
File Status Marked Corrupt Empty Blocks Blocks Examined High SCN
---- ------ -------------- ------------ --------------- ----------
4 OK 0 257 8960 2850558
File Name: /u01/app/oracle/oradata/orcl/undotbs01.dbf
Block Type Blocks Failing Blocks Processed
---------- -------------- ----------------
Data 0 0
Index 0 0
Other 0 8703
File Status Marked Corrupt Empty Blocks Blocks Examined High SCN
---- ------ -------------- ------------ --------------- ----------
7 OK 0 1 641 30002
File Name: /u01/app/oracle/oradata/orcl/users01.dbf
Block Type Blocks Failing Blocks Processed
---------- -------------- ----------------
Data 0 0
Index 0 0
Other 0 639
channel ORA_DISK_1: starting validation of datafile
channel ORA_DISK_1: specifying datafile(s) for validation
input datafile file number=00006 name=/u01/app/oracle/oradata/orcl/pdbseed/sysaux01.dbf
input datafile file number=00005 name=/u01/app/oracle/oradata/orcl/pdbseed/system01.dbf
input datafile file number=00008 name=/u01/app/oracle/oradata/orcl/pdbseed/undotbs01.dbf
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03009: failure of validate command on ORA_DISK_1 channel at 03/18/2021 16:29:01
ORA-19505: failed to identify file "/u01/app/oracle/oradata/orcl/pdbseed/system01.dbf"
ORA-27037: unable to obtain file status
Linux-x86_64 Error: 2: No such file or directory
Additional information: 7
RMAN> list failure;
Database Role: PRIMARY
List of Database Failures
=========================
Failure ID Priority Status Time Detected Summary
---------- -------- --------- ------------- -------
4907 CRITICAL OPEN 18-MAR-21 System datafile 5: '/u01/app/oracle/oradata/orcl/pdbseed/system01.dbf' is missing
SQL> show con_name
CON_NAME
------------------------------
CDB$ROOT
SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup mount;
ORACLE instance started.
Total System Global Area 2835349504 bytes
Fixed Size 8796816 bytes
Variable Size 721421680 bytes
Database Buffers 2097152000 bytes
Redo Buffers 7979008 bytes
Database mounted.
Collegarsi nuovmanete al catalogo:
[oracle@rmancat ~]$ rman target sys/system@primary catalog rcatown/rcatown@rcatpdb
Recovery Manager: Release 12.2.0.1.0 - Production on Thu Mar 18 16:46:00 2021
Copyright (c) 1982, 2017, Oracle and/or its affiliates. All rights reserved.
connected to target database: ORCL (DBID=1590558615, not open)
connected to recovery catalog database
RMAN> run {
allocate channel c1 device type disk;
restore database;
recover database;
release channel c1;
}
Se riesego
RMAN> validate database;
RMAN> list failure;
Database Role: PRIMARY
no failures found that match specification
Il file è nuovamente presente sul db primary
[oracle@primary ~]$ ls -lrt /u01/app/oracle/oradata/orcl/pdbseed/system01.dbf
-rw-r----- 1 oracle oinstall 262152192 Mar 18 16:50 /u01/app/oracle/oradata/orcl/pdbseed/system01.dbf
Aprimo il database:
SQL> alter database open;
