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Sunday, November 23, 2008
Membuat ulang/re-create controlfile di oracle

recreate_controlfile.txt

Pada artikel ini, akan dijelaskan bagaimana cara membuat ulang controlfile pada oracle.
Kita perlu membuat ulang controlfile pada saat akan melakukan perubahan-perubahan paramater pada
controlfile, disini saya akan melakukan perubahan pada nilai:

MAXLOGFILES 16
MAXLOGMEMBERS 3
MAXDATAFILES 300
MAXINSTANCES 8
MAXLOGHISTORY 292

menjadi

MAXLOGFILES 50
MAXLOGMEMBERS 5
MAXDATAFILES 1024
MAXINSTANCES 15
MAXLOGHISTORY 500

Langkah-langkah yang dilakukan adalah :

1. pastikan nama database yang akan kita buat ulang controlfilenya

SQL> select name from v$database;

NAME
---------
TRAINING

2. lihat path dimana controlfile berada.

SQL> select name from v$controlfile;

NAME
------------------------------------------------------------------------------
/ORACLE/PRODUCT/10.2.0/ORADATA/TRAINING/CONTROL01.CTL
/ORACLE/PRODUCT/10.2.0/ORADATA/TRAINING/CONTROL02.CTL
/ORACLE/PRODUCT/10.2.0/ORADATA/TRAINING/CONTROL03.CTL

3. backup controlfile kedalam bentuk file text untuk membuat ulang controlfilenya

SQL> alter database backup controlfile to trace as ‘/coba2oracle/controlfile.txt’;

Database altered.

4. edit file controlfile.txt sesuai dengan kebutuhan

$ vi /coba2oracle/controlfile.txt

=============== potong ====================

-- After mounting the created controlfile, the following SQL
-- statement will place the database in the appropriate
-- protection mode:
-- ALTER DATABASE SET STANDBY DATABASE TO MAXIMIZE PERFORMANCE

STARTUP NOMOUNT
CREATE CONTROLFILE REUSE DATABASE “TRAINING” NORESETLOGS FORCE LOGGING ARCHIVELOG
MAXLOGFILES 16
MAXLOGMEMBERS 3
MAXDATAFILES 300
MAXINSTANCES 8
MAXLOGHISTORY 292

============== potong =====================

kemudian edit file tersebut menjadi seperti dibawah ini:

STARTUP NOMOUNT
CREATE CONTROLFILE REUSE DATABASE “TRAINING” NORESETLOGS FORCE LOGGING ARCHIVELOG
MAXLOGFILES 50
MAXLOGMEMBERS 10
MAXDATAFILES 1024
MAXINSTANCES 15
MAXLOGHISTORY 500
LOGFILE
GROUP 1 ‘/ORACLE/PRODUCT/10.2.0/ORADATA/TRAINING/REDO01.LOG’ SIZE 50M,
GROUP 2 ‘/ORACLE/PRODUCT/10.2.0/ORADATA/TRAINING/REDO02.LOG’ SIZE 50M,
GROUP 3 ‘/ORACLE/PRODUCT/10.2.0/ORADATA/TRAINING/REDO03.LOG’ SIZE 50M
DATAFILE
‘/ORACLE/PRODUCT/10.2.0/ORADATA/TRAINING/SYSTEM01.DBF’,
‘/ORACLE/PRODUCT/10.2.0/ORADATA/TRAINING/UNDOTBS01.DBF’,
‘/ORACLE/PRODUCT/10.2.0/ORADATA/TRAINING/SYSAUX01.DBF’,
‘/ORACLE/PRODUCT/10.2.0/ORADATA/TRAINING/USERS01.DBF’,
‘/ORACLE/PRODUCT/10.2.0/ORADATA/TRAINING/USERS02.DBF’,
‘/ORACLEDATA/HAPUS.DBF’,
‘/ORACLEDATA/HAPUS02.DBF’,
‘/ORACLE/PRODUCT/10.2.0/ORADATA/TRAINING/LAT01.DBF’
CHARACTER SET WE8MSWIN1252;
RECOVER DATABASE
ALTER SYSTEM ARCHIVE LOG ALL;
ALTER DATABASE OPEN;
ALTER TABLESPACE TEMP ADD TEMPFILE ‘D:\ORACLE\PRODUCT\10.2.0\ORADATA\TRAINING\TEMP01.DBF’
SIZE 20971520 REUSE AUTOEXTEND OFF;

NOTE : pada file controlfile.txt terdapat 2 metode dalam pembuatan controlfile, case 1 (noresetlogs)
dan case 2 (resetlogs), untuk kasus ini hapus step2 pada case 2(resetlogs)..

Setelah itu simpan hasil perubahan dan rubah controlfile.txt menjadi controlfile.sql

$ mv controlfile.txt controlfile.sql

5. matikan database

SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.

6. jalankan script pada file controlfile.sql

SQL> @ /coba2oracle/controlfile.sql;
ORACLE instance started.

Total System Global Area 1048576000 bytes
Fixed Size 1252976 bytes
Variable Size 583008656 bytes
Database Buffers 461373440 bytes
Redo Buffers 2940928 bytes

Control file created.

ORA-00283: recovery session canceled due to errors
ORA-00264: no recovery required

System altered.

Database altered.

Tablespace altered.

SQL>

NOTE : Pesan error tersebut tidak masalah, karena menunjukkan bahwa database tidak
perlu di recover.

Posted by roninmorgue on 11/23 at 10:13 PM
Computer DataBase • (0) Comments • (7477) Trackbacks • Permalink
Membuat RMAN dengan crontab

create_rman_crontab.txt

Untuk artikel kali ini, saya akan membuat script RMAN yang akan dijalankan secara terjadwal
dengan menggunakan crontab…

Langkah-langkah yang dilakukan adalah:

1. membuat file fullbackup_rman.sh

* * * * * /app1/oracle/scripts/fullbackup_rman.sh > /app1/oracle/backup/rman_fullbackup/fullbackup_rman.log
====================================
#vi fullbackup_rman.sh

ORACLE_SID=training; export ORACLE_SID
ORACLE_HOME=/ora10g/app/oracle/OraHome_1
export ORACLE_HOME
PATH=$PATH:$ORACLE_HOME/bin:/bin:/usr/bin:/usr/ucb:/etc:.;export PATH
rman target=/ @/app1/oracle/scripts/fullbackup_script.conf -> path tempat menaruh script RMAN

================================

2. buat file fullbackup_script.conf
contoh script RMAN yang akan dijalankan.

#vi /app1/oracle/scripts/fullbackup_script.conf

run
{
allocate channel ch1 type disk;
backup
incremental level 0
filesperset 1
format ‘/app1/oracle_backup/data_%T_d%d_p%p_U%U.bak’
(database);

backup
incremental level 0
format ‘/app1/oracle_backup/cf_%T_d%d_p%p_U%U.bak’
(current controlfile);

delete noprompt obsolete;
}
exit;

============================

Cara membuat Crontab file
___________
Crontab syntax :-
A crontab file has five fields for specifying day , date and time followed by the command to be run at that interval.
* * * * * command to be executed
- - - - -
| | | | |
| | | | +----- day of week (0 - 6) (Sunday=0)
| | | +------- month (1 - 12)
| | +--------- day of month (1 - 31)
| +----------- hour (0 - 23)
+------------- min (0 - 59)

* in the value field above means all legal values as in braces for that column.
The value column can have a * or a list of elements separated by commas. An element is either a number in the ranges shown above or two numbers in the range separated by a hyphen (meaning an inclusive range).

Note: The specification of days can be made in two fields: month day and weekday. If both are specified in an entry, they are cumulative meaning both of the entries will get executed .

3. membuat Crontab untuk menjalankan RMAN
_______

contoh crontab ini akan menjalankan script /app1/oracle/scripts/fullbackup_rman.sh dan membuat log di /app1/oracle/backup/rman_fullbackup/fullbackup_rman.log
setiap hari pada jam 6:30 PM.

30 18 * * * /app1/oracle/scripts/fullbackup_rman.sh > /app1/oracle/backup/rman_fullbackup/fullbackup_rman.log

=================================

$ chmod 775 fullbackup_rman.sh
$ crontab -e => 30 18 * * * /app1/oracle/scripts/fullbackup_rman.sh > /app1/oracle/backup/rman_fullbackup/fullbackup_rman.log
$ crontab -l

=================================

Posted by roninmorgue on 11/23 at 09:57 PM
Computer DataBase • (0) Comments • (563) Trackbacks • Permalink
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