Understanding ASM (7) ASM migration

Environment:

Sys @ ORCL> select * from v $ version;

BANNER

----------------------------------------------------------------

Oracle Database 10g Enterprise Edition Release 10.2.0.1.0-Prod

Sys @ ORCL>! Uname

Linux

(1) modify the Control File Location

Sys @ ORCL> show parameter control_files

NAME TYPE VALUE

-----------------------------------------------------------------------------

Control_files string/u01/app/oracle/oradata/ORCL/c

Ontrolfile/o1_mf_8050hgreen _. ctl

,/U01/app/oracle/flash_recove

Ry_area/ORCL/controlfile/ow.mf

_ 8050hgqh _. ctl

Sys @ ORCL> alter database backup controlfile to '/home/oracle/ctlasm. ctl ';

Sys @ ORCL> alter system set control_files = '+ water' scope = spfile;

Sys @ ORCL> shutdown immediate;

(2) Data File migration

RMAN> startup nomount

RMAN> restore controlfile from '/home/oracle/ctlasm. ctl ';

RMAN> alter database mount;

RMAN> backup as copy database format '+ water ';

RMAN> recover database;

RMAN> switch database to copy;

(3) log file migration

Idle> conn/as sysdba

Idle> alter database open resetlogs;

Idle> alter database add logfile group 4' + WATER/redo04.log 'size 50 m;

Idle> alter database add logfile group 5' + WATER/redo05.log 'size 50 m;

Idle> alter database add logfile group 6' + WATER/redo06.log 'size 50 m;

Idle> select group #, status from v $ log;

GROUP # STATUS

--------------------------

1 UNUSED

2 CURRENT

3 UNUSED

4 UNUSED

5 UNUSED

6 UNUSED

Idle> alter system switch logfile;

Idle> alter system switch logfile;

Idle> alter system switch logfile;

Idle> select group #, status from v $ log;

GROUP # STATUS

--------------------------

1 ACTIVE

2 ACTIVE

3 ACTIVE

4 ACTIVE

5 ACTIVE

6 CURRENT

Idle> alter system checkpoint;

Idle> alter database drop logfile group 1;

Idle> alter database drop logfile group 2;

Idle> alter database drop logfile group 3;

Idle> select member from v $ logfile;

MEMBER

Bytes ----------------------------------------------------------------------------------------------------

+ WATER/redo04.log

+ WATER/redo05.log

+ WATER/redo06.log

(4) temporary file migration

Sys @ ORCL> select file_name, tablespace_name from dba_temp_files;

FILE_NAME TABLESPACE_NAME

-----------------------------------------------------------------------------------------------

/U01/app/oracle/oradata/ORCL/datafile/o1_mf_temp_8050j34j _. tmp TEMP

Sys @ ORCL> alter tablespace temp add tempfile '+ water ';

Sys @ ORCL> select file_name, tablespace_name from dba_temp_files;

FILE_NAME TABLESPACE_NAME

-----------------------------------------------------------------------------------------------

+ WATER/orcl/tempfile/temp.265.798479421 TEMP

/U01/app/oracle/oradata/ORCL/datafile/o1_mf_temp_8050j34j _. tmp TEMP

Sys @ ORCL> alter tablespace temp drop tempfile '/u01/app/oracle/oradata/ORCL/datafile/o1_mf_temp_8050j34j _. tmp ';

⑸ Modify the values of db_create_file_dest, db_recovery_file_dest, and db_recovery_file_dest_size

Sys @ ORCL> alter system set db_create_file_dest = '+ WATER/ORCL/ORADATA' scope = spfile;

Sys @ ORCL> alter system set db_recovery_file_dest = '+ water' scope = spfile;

Sys @ ORCL> alter system set db_recovery_file_dest_size = 1G scope = spfile;

Sys @ ORCL> alter database backup controlfile to '+ water'; -- only one control file exists during migration.

Sys @ ORCL> show parameter control

NAME TYPE VALUE

-----------------------------------------------------------------------------

Control_file_record_keep_time integer 7

Control_files string + WATER/orcl/controlfile/curren

T.256.798477831

Modify parameter file and migrate spfile

Sys @ ORCL> alter system set control_files = '+ WATER/ORCL/ORADATA/CONTROL01.CTL', '+ WATER/ORCL/ORADATA/CONTROL02.CTL' scope = spfile;

Sys @ ORCL> create spfile = '+ WATER/ORCL/spfileorcl. ora' from pfile;

[Oracle @ localhost dbs] $ rm-I spfileorcl. ora

[Oracle @ localhost dbs] $ vim initorcl. ora

[Oracle @ localhost dbs] $ tail-f initorcl. ora

*. Job_queue_processes = 10

*. Open_cursors = 300

*. Pga_aggregate_target = 139460608

*. Processses = 150

*. Remote_login_passwordfile = 'none'

*. Sga_target = 418381824

*. Undo_management = 'auto'

*. Undo_tablespace = 'undotbs1'

*. User_dump_dest = '/u01/app/oracle/admin/orcl/udump'

SPFILE = '+ WATER/ORCL/spfileorcl. ora'

⑺ Check the connection between the ASM instance and the database instance

ASMCMD> lsct

DB_Name Status Software_Version Compatible_version Instance_Name

Orcl CONNECTED 10.2.0.1.0 10.2.0.1.0 orcl

Summary:

The first migration failed because it was only used for learning and the disk space was too small. If the space is rich, you may be generous.

Oracle video tutorial follow: http://u.youku.com/user_video/id_UMzAzMjkxMjE2.html