將普通filesystem上的database移動到asm上

tolilong發表於2013-02-05
DatabaseASM
今天測試了一下將普通filesystem上的database遷移到asm上[@more@]
1,backup database
RMAN> backup as compressed backupset database plus archivelog;


Starting backup at 02-FEB-13
current log archived
using channel ORA_DISK_1
channel ORA_DISK_1: starting compressed archived log backup set
channel ORA_DISK_1: specifying archived log(s) in backup set
input archived log thread=1 sequence=5 RECID=19 STAMP=806364292
input archived log thread=1 sequence=6 RECID=20 STAMP=806364367
channel ORA_DISK_1: starting piece 1 at 02-FEB-13
channel ORA_DISK_1: finished piece 1 at 02-FEB-13
piece handle=/u01/app/oracle/product/11.2.0/dbhome_1/dbs/0lo1096f_1_1 tag=TAG20130202T220607 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:03
Finished backup at 02-FEB-13

Starting backup at 02-FEB-13
using channel ORA_DISK_1
channel ORA_DISK_1: starting compressed full datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
input datafile file number=00001 name=/oradata/asm/system01.dbf
input datafile file number=00002 name=/oradata/asm/sysaux01.dbf
input datafile file number=00003 name=/oradata/asm/undotbs01.dbf
input datafile file number=00004 name=/oradata/asm/users.dbf
channel ORA_DISK_1: starting piece 1 at 02-FEB-13
channel ORA_DISK_1: finished piece 1 at 02-FEB-13
piece handle=/u01/app/oracle/product/11.2.0/dbhome_1/dbs/0mo1096j_1_1 tag=TAG20130202T220610 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:02:15
Finished backup at 02-FEB-13

Starting backup at 02-FEB-13
current log archived
using channel ORA_DISK_1
channel ORA_DISK_1: starting compressed archived log backup set
channel ORA_DISK_1: specifying archived log(s) in backup set
input archived log thread=1 sequence=7 RECID=21 STAMP=806364507
channel ORA_DISK_1: starting piece 1 at 02-FEB-13
channel ORA_DISK_1: finished piece 1 at 02-FEB-13
piece handle=/u01/app/oracle/product/11.2.0/dbhome_1/dbs/0no109ar_1_1 tag=TAG20130202T220827 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:01
Finished backup at 02-FEB-13

Starting Control File and SPFILE Autobackup at 02-FEB-13
piece handle=/oradata/rmanbackup/c-3825267224-20130202-03 comment=NONE
Finished Control File and SPFILE Autobackup at 02-FEB-13
2,restore spfile to asm diskgroup
RMAN> restore spfile to '+data/asm/spfileasm.ora';

Starting restore at 02-FEB-13
using channel ORA_DISK_1

channel ORA_DISK_1: starting datafile backup set restore
channel ORA_DISK_1: restoring SPFILE
output file name=+data/asm/spfileasm.ora
channel ORA_DISK_1: reading from backup piece /oradata/rmanbackup/c-3825267224-20130202-03
channel ORA_DISK_1: piece handle=/oradata/rmanbackup/c-3825267224-20130202-03 tag=TAG20130202T220828
channel ORA_DISK_1: restored backup piece 1
channel ORA_DISK_1: restore complete, elapsed time: 00:00:01
Finished restore at 02-FEB-13
3,在?/dbs/目錄下將initasm.ora中指定 spfile='+data/asm/spfileasm.ora'
4,更改controlfile檔案的路徑
SQL> alter system set control_files='+data' scope=spfile;

System altered.

SQL> shutdown immediate
ORA-01507: database not mounted


ORACLE instance shut down.
SQL> startup nomount;
ORACLE instance started.

Total System Global Area 839282688 bytes
Fixed Size 2217992 bytes
Variable Size 574621688 bytes
Database Buffers 260046848 bytes
Redo Buffers 2396160 bytes
5,restore controlfile to asm diskgroup
RMAN> restore controlfile from '/oradata/rmanbackup/c-3825267224-20130202-03';

Starting restore at 02-FEB-13
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=24 device type=DISK

channel ORA_DISK_1: restoring control file
channel ORA_DISK_1: restore complete, elapsed time: 00:00:01
output file name=+DATA/asm/controlfile/current.271.806365451
Finished restore at 02-FEB-13
RMAN> alter database mount;

database mounted
released channel: ORA_DISK_1
6,restore datafile to asm diskgroup
RMAN> run
2> {
3> allocate channel c1 type disk;
4> set newname for datafile 1 to '+data/asm/system01.dbf';
5> set newname for datafile 2 to '+data/asm/sysaux01.dbf';
6> set newname for datafile 3 to '+data/asm/undotbs01.dbf';
7> set newname for datafile 4 to '+data/asm/users01.dbf';
8> restore database;
9> switch datafile all;
10> recover database;
11> release channel c1;
12> }

allocated channel: c1
channel c1: SID=24 device type=DISK

executing command: SET NEWNAME

executing command: SET NEWNAME

executing command: SET NEWNAME

executing command: SET NEWNAME

Starting restore at 02-FEB-13

channel c1: starting datafile backup set restore
channel c1: specifying datafile(s) to restore from backup set
channel c1: restoring datafile 00001 to +data/asm/system01.dbf
channel c1: restoring datafile 00002 to +data/asm/sysaux01.dbf
channel c1: restoring datafile 00003 to +data/asm/undotbs01.dbf
channel c1: restoring datafile 00004 to +data/asm/users01.dbf
channel c1: reading from backup piece /u01/app/oracle/product/11.2.0/dbhome_1/dbs/0mo1096j_1_1
channel c1: piece handle=/u01/app/oracle/product/11.2.0/dbhome_1/dbs/0mo1096j_1_1 tag=TAG20130202T220610
channel c1: restored backup piece 1
channel c1: restore complete, elapsed time: 00:02:16
Finished restore at 02-FEB-13

datafile 1 switched to datafile copy
input datafile copy RECID=21 STAMP=806365826 file name=+DATA/asm/system01.dbf
datafile 2 switched to datafile copy
input datafile copy RECID=22 STAMP=806365826 file name=+DATA/asm/sysaux01.dbf
datafile 3 switched to datafile copy
input datafile copy RECID=23 STAMP=806365826 file name=+DATA/asm/undotbs01.dbf
datafile 4 switched to datafile copy
input datafile copy RECID=24 STAMP=806365826 file name=+DATA/asm/users01.dbf

Starting recover at 02-FEB-13

starting media recovery

archived log for thread 1 with sequence 7 is already on disk as file /oradata/asm/redo05.log
archived log for thread 1 with sequence 8 is already on disk as file /oradata/asm/redo04.log
archived log file name=/oradata/asm/redo05.log thread=1 sequence=7
archived log file name=/oradata/asm/redo04.log thread=1 sequence=8
media recovery complete, elapsed time: 00:00:01
Finished recover at 02-FEB-13

released channel: c1
RMAN> alter database open resetlogs;

database opened
7,將redo log全部遷移到asm上
SQL> alter database add logfile group 1 '+data/asm/redo01.log' size 50m;

Database altered.

SQL> alter database add logfile group 2 '+data/asm/redo02.log' size 50m;

Database altered.
SQL> alter database drop logfile group 4;

Database altered.

SQL> alter database drop logfile group 5;

Database altered.
SQL> select * from v$logfile;

GROUP# STATUS TYPE MEMBER IS_
---------- ------- ------- -------------------------------------------------- ---
1 ONLINE +DATA/asm/redo01.log NO
2 ONLINE +DATA/asm/redo02.log NO
8,設定db_recovery_file_dest的路徑
SQL> alter system set db_recovery_file_dest_size=5G;

System altered.

SQL> ALTER SYSTEM SET DB_RECOVERY_FILE_DEST='+FLASH';

System altered.
9,設定tempfile
SQL> alter tablespace temp add tempfile '+data/asm/temp02.dbf' size 10m;

Tablespace altered.

SQL> alter tablespace temp drop tempfile '/oradata/asm/temp01.dbf';

Tablespace altered.
======================================================
移動redo的script
SET SERVEROUTPUT ON;
DECLARE
CURSOR rlc IS
SELECT GROUP# GRP, THREAD# THR, BYTES, 'NO' SRL
FROM V$LOG
UNION
SELECT GROUP# GRP, THREAD# THR, BYTES, 'YES' SRL
FROM V$STANDBY_LOG
ORDER BY 1;
stmt VARCHAR2(2048);
BEGIN
FOR rlcRec IN rlc LOOP
IF (rlcRec.srl = 'YES') THEN
stmt := 'ALTER DATABASE ADD STANDBY LOGFILE THREAD ' ||
rlcRec.thr || ' SIZE ' || rlcRec.bytes;
EXECUTE IMMEDIATE stmt;
stmt := 'ALTER DATABASE DROP STANDBY LOGFILE GROUP ' || rlcRec.grp;
EXECUTE IMMEDIATE stmt;
ELSE
stmt := 'ALTER DATABASE ADD LOGFILE THREAD ' ||
rlcRec.thr || ' SIZE ' || rlcRec.bytes;
EXECUTE IMMEDIATE stmt;
BEGIN
stmt := 'ALTER DATABASE DROP LOGFILE GROUP ' || rlcRec.grp;
DBMS_OUTPUT.PUT_LINE(stmt);
EXECUTE IMMEDIATE stmt;
EXCEPTION
WHEN OTHERS THEN
EXECUTE IMMEDIATE 'ALTER SYSTEM SWITCH LOGFILE';
EXECUTE IMMEDIATE 'ALTER SYSTEM CHECKPOINT GLOBAL';
EXECUTE IMMEDIATE stmt;
END;
END IF;
END LOOP;
END;

來自 “ ITPUB部落格 ” ，連結：http://blog.itpub.net/24237320/viewspace-1060192/，如需轉載，請註明出處，否則將追究法律責任。

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