Oracle xtts同平台迁移测试

Oracle xtts同平台迁移测试

1、环境检查

2、源库开启块跟踪

ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE '/u02/changetracking.chg';

3、挂载nfs存储

4、确认scn记录
作为后续增量备份的开始scn，起始点

alter system checkpoint; 
select current_scn from v$database;
    1040684

5、通过rman生成数据文件备份
将rman备份生成的数据文件存放到nfs目录

rman target / <<EOF
run{
allocate channel c1 type disk;
allocate channel c2 type disk;
backup as copy datafile 5 format '/u02/copy/admin.dbf';
release channel c1;
release channel c2;
}
EOF

6、源库生成增量数据

create table admin.test2 as select * from dba_users;

7、增量备份阶段
最后一次增量备份前确定当前scn，并且将表空间read only，根据全备时期记录的scn作为增量备份的起点开始备份,并存放到nfs目录
将表空间置为read only

alter tablespace admin read only;

rman target / <<EOF
run{
set until scn=1040906;  -->增量备份前的scn
backup incremental from scn 1040684 datafile 5 format '/u02/copy/incr_%d_%T_%U.bak';  -->上次rman备份表空间数据文件时的scn
}
EOF

8、源数据库导出元数据
在源数据库中将对应的表空间置为read only，排除系统表空间

源数据库：

expdp system/oracle directory=dump dumpfile=ora11g_metadata.dmp TRANSPORT_TABLESPACES=admin logfile=xtts.log

9、目标数据库还原数据文件

cp /u02/copy/admin.dbf /u02/app/oracle/oradata/orcl/admin.dbf

10、目标数据库增量备份进行还原

`增量还原脚本`

set serveroutput on;
DECLARE
   outhandle varchar2(512) ;
   outtag varchar2(30) ;
   done boolean ;
   failover boolean ;
   devtype VARCHAR2(512);
BEGIN
   DBMS_OUTPUT.put_line('Entering RollForward');
   -- Now the rolling forward.
   devtype := sys.dbms_backup_restore.deviceAllocate;
   sys.dbms_backup_restore.applySetDatafile(check_logical => FALSE, cleanup => FALSE) ;
   DBMS_OUTPUT.put_line('After applySetDataFile');
sys.dbms_backup_restore.applyDatafileTo(dfnumber =>  5 ,toname => '/u02/app/oracle/oradata/orcl/admin.dbf',fuzziness_hint => 0, max_corrupt => 0, islevel0 => 0,recid => 0, stamp => 0);
  DBMS_OUTPUT.put_line('Done: applyDataFileTo');
  DBMS_OUTPUT.put_line('Done: applyDataFileTo');
  -- Restore Set Piece
  sys.dbms_backup_restore.restoreSetPiece(handle => '/u02/copy/incr_ORA11G_20190304_02trj7d5_1_1.bak',tag => null, fromdisk => true, recid => 0, stamp => 0) ;

  DBMS_OUTPUT.put_line('Done: RestoreSetPiece');

  -- Restore Backup Piece
  sys.dbms_backup_restore.restoreBackupPiece(done => done, params => null, outhandle => outhandle,outtag => outtag, failover => failover);
  DBMS_OUTPUT.put_line('Done: RestoreBackupPiece');
  sys.dbms_backup_restore.restoreCancel(TRUE);
  sys.dbms_backup_restore.deviceDeallocate;
  END;
  /

应用增量备份

SQL> @apply_incr.sql
Entering RollForward
After applySetDataFile
Done: applyDataFileTo
Done: applyDataFileTo
Done: RestoreSetPiece
Done: RestoreBackupPiece

PL/SQL procedure successfully completed.

11、目标数据库元数据导入
目标数据库

在导入之前需要在目标数据库创建源库的用户对象

create user admin identified by oracle;
grant dba to admin;

开始导入元数据

impdp system/oracle directory=dump dumpfile=ora11g_metadata.dmp transport_datafiles=/u02/app/oracle/oradata/orcl/admin.dbf  logfile=xtts.log

Import: Release 11.2.0.4.0 - Production on Tue Mar 5 09:50:18 2019

Copyright © 1982, 2011, Oracle and/or its affiliates.  All rights reserved.

Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
Master table "SYSTEM"."SYS_IMPORT_TRANSPORTABLE_01" successfully loaded/unloaded
Starting "SYSTEM"."SYS_IMPORT_TRANSPORTABLE_01":  system/******** directory=dump dumpfile=ora11g_metadata.dmp transport_datafiles=/u02/app/oracle/oradata/orcl/admin.dbf logfile=xtts.log 
Processing object type TRANSPORTABLE_EXPORT/PLUGTS_BLK
Processing object type TRANSPORTABLE_EXPORT/TABLE
Processing object type TRANSPORTABLE_EXPORT/POST_INSTANCE/PLUGTS_BLK
Job "SYSTEM"."SYS_IMPORT_TRANSPORTABLE_01" successfully completed at Tue Mar 5 09:50:25 2019 elapsed 0 00:00:04

12、更改用户对应默认表空间

SQL> alter user admin default tablespace admin;

13、无效对象编译检查

sqlplus / as sysdba <<EOF
DECLARE
   threads pls_integer := 150;
BEGIN
   utl_recomp.recomp_parallel(threads);
END;
/
EOF   

14、检验目标数据库数据一致性

增量数据验证

SQL> select count(*) from admin.test2;

  COUNT(*)
----------
        31

对象数量验证

select owner,object_type,count (*) from dba_objects where owner group by owner,object_type order by owner,object_type;

表数据库行数验证

select table_name,num_rows from all_tables where owner=‘ADMIN' group by table_name,num_rows having num_rows>500 order by table_name;

表数据大小验证

select owner, segment_name, bytes/1024/1024 from dba_segments where segment_type = 'TABLE' and owner =’ADMIN';

CATALOG DATAFILECOPY ‘/u02/copy/admin.dbf’;
RUN {
SET NEWNAME FOR DATAFILE 5 TO ‘/u02/app/oracle/oradata/orcl/admin.dbf’;
SWITCH DATAFILE 5;
}

转化
RUN
{
CONVERT
FROM PLATFORM ‘Linux x86 64-bit’
DATAFILE ‘/u02/copy/ora11g_data_D-ORA11G_I-103208071_TS-ADMIN_FNO-5_01trj781’
FORMAT
‘/u02/app/oracle/oradata/orcl/admin.dbf’;
}