oracle12c到19c adg搭建(六)切换后12c备库服务器安装19c软件在19c主库升级数据字典后尝试同步

一、安装19c软件

参考文章oracle12c到19c adg搭建(三)oracle19c数据库软件安装

二、原主库尝试通过19c软件启动数据库

2.1复制12c的相关参数文件和密码文件到19c目录

注意:密码文件需要从已切换主库19c传过来

[oracle@o12u19p ~]$ cd /u01/app/oracle/product/12.1.0.2/dbhome_1/dbs/

[oracle@o12u19p dbs]$ ls

hc_orcl.dat init.ora initorcl.ora lkORCL orapworcl snapcf_orcl.f spfileorcl.ora

[oracle@o12u19p dbs]$ cp * /u01/app/oracle/product/19.3.0.0/dbhome_1/dbs/

[oracle@o12u19p dbs]$ cd /u01/app/oracle/product/19.3.0.0/dbhome_1/dbs/

[oracle@o12u19p dbs]$ ls

hc_orcl.dat init.ora initorcl.ora lkORCL orapworcl snapcf_orcl.f spfileorcl.ora

[oracle@o12u19p dbs]$

2.2主库生成控制文件

SQL> ALTER DATABASE CREATE standby controlfile AS '/backup/orcl.ctl';

Database altered.

[oracle@o12u19s backup]$ scp orcl.ctl oracle@o12u19p:/backup

2.3恢复控制文件

[oracle@o12u19p backup]$ sqlplus / as sysdba

SQL*Plus: Release 19.0.0.0.0 - Production on Wed Jun 19 10:02:39 2024

Version 19.3.0.0.0

Copyright (c) 1982, 2019, Oracle. All rights reserved.

Connected to an idle instance.

SQL> startup nomount

ORACLE instance started.

Total System Global Area 6174013840 bytes

Fixed Size 9148816 bytes

Variable Size 1056964608 bytes

Database Buffers 5100273664 bytes

Redo Buffers 7626752 bytes

SQL>

RMAN> restore controlfile from'/backup/orcl.ctl';

Starting restore at 19-JUN-24

using target database control file instead of recovery catalog

allocated channel: ORA_DISK_1

channel ORA_DISK_1: SID=21 device type=DISK

channel ORA_DISK_1: copied control file copy

output file name=/u01/app/oracle/oradata/orcl/control01.ctl

output file name=/u01/app/oracle/fast_recovery_area/orcl/control02.ctl

Finished restore at 19-JUN-24

RMAN>

2.4复制12c监听文件到19c目录下并启动监听文件

[oracle@o12u19p admin]$ cd /u01/app/oracle/product/12.1.0.2/dbhome_1/network/admin/

[oracle@o12u19p admin]$ scp * /u01/app/oracle/product/19.3.0.0/dbhome_1/network/admin/

cp: omitting directory 'samples'

[oracle@o12u19p admin]$ ls

listener.ora samples shrept.lst sqlnet.ora tnsnames.ora

[oracle@o12u19p admin]$ lsnrclt start

bash: lsnrclt: command not found...

[oracle@o12u19p admin]$ lsnrctl start

2.5备库开库

[oracle@o12u19p admin]$ sqlplus / as sysdba

SQL*Plus: Release 19.0.0.0.0 - Production on Wed Jun 19 10:29:44 2024

Version 19.3.0.0.0

Copyright (c) 1982, 2019, Oracle. All rights reserved.

Connected to:

Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production

Version 19.3.0.0.0

SQL> alter database open

2 ;

报错:

由于控制文件的scn和数据文件的scn差异过大导致

2.6尝试从主库拷贝一些日志到备库 备库尝试日志应用

[oracle@o12u19s backup]$ cd /u01/app/oracle/oradata/

[oracle@o12u19s oradata]$ ls

orcl orcldg

[oracle@o12u19s oradata]$ cd orcldg/

[oracle@o12u19s orcldg]$ ls

arch pdb1 pdbseed sysaux01.dbf system01.dbf temp01.dbf undotbs01.dbf users01.dbf

[oracle@o12u19s orcldg]$ cd arch/

[oracle@o12u19s arch]$ ls

备库日志到1-27

主库从1-28开始拷贝

[oracle@o12u19s arch]$ scp 1_28_1171969607.dbf 1_28_1171991791.dbf 1_29_1171991791.dbf 1_30_1171991791.dbf 1_31_1171991791.dbf oracle@o12u19p:/u01/app/oracle/oradata/orcl/arch

2.7开启日志应用

alter database recover managed standby database using current logfile disconnect from session;

2.8主备库打开pdb

SQL> show pdbs

CON_ID CON_NAME OPEN MODE RESTRICTED


2 PDB$SEED READ ONLY NO

3 PDB1 MOUNTED

SQL> alter pluggable database pdb1 open;

Pluggable database altered.

三、主备库同步检查

主库查看seq

SQL> select sequence#,applied from v$archived_log order by sequence# asc;

备库查看seq

可以看到备库已经开始同步主库的日志从283开始。

至此我们完成了12c到19cadg的搭建及12c滚动升级到19c的过程

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