Catalog
1. Environment deployment 2
1. 1. Modify the database to archive mode. 2
1. 2 create test table 2
2. Backup preparation 2
2. 1 full database backup 2
2. 2 copy parameter file 2
2. 2. 1 view parameter file path 2
2. 2.2 copy parameter file 3
2. 2.4 creating dynamic files 3
2. 5 copying archives 3
2. 5. 1 view the archive file path 3
2. 5.2 copying archives 3
2. 5.3 copy all backup files 3
3. Perform backup 4
3. 1 2recovery control file 4
3. 2 3recover data files 4
4. Full synchronization 4
4. 1 2simulation modification Data4
4. 2 3switch logs, generate new archives, and copy 4
4. 3 incomplete recovery 5

 
1. Environment deployment
1. 1 modify database to archive mode

SYS@sao>archive log list

Both libraries need to see
Skip the following steps for archive mode

SYS@sao>shutdown immediate；
SYS@sao>startup mount;
SYS@sao>alter database archivelog;
SYS@sao> archive log list
Database log mode	       Archive Mode
SYS@sao>alter database open;

1. 2 create test table

SYS@sao>conn scott/tiger
SCOTT@sao>create table test3 as select * from dept;
SCOTT@sao>exit

2. Backup preparation

2. 1 full database backup
Create directories for backup

[oracle@oracleA1 ~]$ mkdir saodata
[oracle@oracleB1 ~]$ mkdir saodata
[oracle@oracleA1 ~]$  rman target /

Backup data files

RMAN> backup database format '/home/oracle/saodata/data_%U.dbf';

Backup control file

RMAN> backup current controlfile format '/home/oracle/saodata/control_%f.dbf';
RMAN> exit

Note the path to the generated file

2. 2 copy parameter file
2. 2. 1 view parameter file path

[oracle@oracleA1 ~]$  sqlplus / as sysdba

SYS@sao>show parameter spfile
			create pfile from spfile；

2. 2. 2 copy parameter file

[oracle@oracleB1 ~]$ mkdir -p /u01/app/oracle/dbs
[oracle@oracleA1 ~]$  scp /u01/app/oracle/dbs/initsao.ora 172.16.100.16:/u01/app/oracle/dbs/

2. 2, 3 view the B1 static parameter file and create the required directory

[oracle@oracleB1 ~]$ cat /u01/app/oracle/dbs/initsao.ora
[oracle@oracleB1 ~]$ mkdir -p /u01/app/admin/sao/adump /u01/app/oradata/sao /u01/app/fast_recovery_area/sao
[oracle@oracleA1 ~]$  sqlplus / as sysdba
SYS@sao>select name from v$datafile;
SYS@sao>exit
[oracle@oracleB1 ~]$ mkdir -p /u01/app/oradata/sao

2. 2.4 creating dynamic files

[oracle@oracleB1 ~]$ sqlplus / as sysdba
SYS@sao>shu abort

Creating dynamic files from static files

SYS@sao>create spfile from pfile;
SYS@sao>startup nomount

2. 5 copy Archive
2. 5. 1 view the archive file path

[oracle@oracleA1 ~]$ sqlplus / as sysdba
SYS@sao>select name from v$archived_log order by 1;

2. 5.2 copying archive files

[oracle@oracleB1 ~]$ rm -rf /u01/app/fast_recovery_area/SAO/archivelog/*
[oracle@oracleB1 ~]$ mkdir -p /u01/app/fast_recovery_area/SAO/archivelog/
 [oracle@oracleA1 ~]$  scp -r /u01/app/fast_recovery_area/SAO/archivelog/*  172.16.100.16:/u01/app/fast_recovery_area/SAO/archivelog/

2. 5.3 copy all backup files

[oracle@oracleA1 ~]$  scp saodata/* 172.16.100.16:/home/oracle/saodata/

3. Perform backup
3. 1 restore control file

[oracle@oracleB1 ~]$ ll -h saodata/
[oracle@oracleB1 ~]$ rman target /
RMAN> restore controlfile from '/home/oracle/saodata/control_0.dbf';

3. 2 recover data file

RMAN> sql 'alter database mount';
RMAN> restore database;
RMAN> recover database;
RMAN> exit

4. Full synchronization
4. 1 Simulation modification data

[oracle@oracleA1 ~]$  sqlplus scott/tiger
SCOTT@sao>select * from tab;
SCOTT@sao>create table test4 as select * from dept;
SCOTT@sao>create table test5 as select * from dept;
SCOTT@sao>commit;
SCOTT@sao>conn / as sysdba
SYS@sao>select current_scn from v$database;

4. 2 switch logs, generate new archives and copy

SYS@sao>shu immediate
SYS@sao>startup
SYS@sao>alter system switch logfile;
SYS@sao>select name from v$archived_log order by 1;
SYS@sao>exit
[oracle@oracleA1 ~]$  scp /u01/app/fast_recovery_area/SAO/archivelog/2019_07_01/*  172.16.100.16:/u01/app/fast_recovery_area/SAO/archivelog/2019_07_01

4. 3 incomplete recovery

[oracle@oracleB1 ~]$ sqlplus / as sysdba

SYS@sao>select status from v$instance;
Check the instance status, and shut down if it is not in mount status
SYS@sao>shutdown immediate;
SYS@sao>startup mount

Restore to the specified scn through the control file

SYS@sao>recover database using backup controlfile until change 1139151;

Reset logs command must be used for startup

SYS@sao>alter database open RESETLOGS;
SYS@sao>select status from v$instance;

STATUS
------------
OPEN

Validate tables created before

SYS@sao>conn scott/tiger;
Connected.
SCOTT@sao>select * from tab;