Configuración de Oracle RMAN

La configuración del canal y el paralelismo de Oracle RMAN incluye la especificación de los destinos del sistema de archivos para los canales de copia de seguridad de Oracle RMAN y la cantidad total de canales utilizados para las operaciones de copia de seguridad y restauración. Si se configuran 16 canales de Oracle RMAN distribuidos entre los recursos compartidos disponibles del dispositivo ZFS Storage Appliance se pueden mejorar el rendimiento. Configure los canales de Oracle RMAN de manera que estén distribuidos de manera uniforme tanto entre las instancias de la base de datos de Oracle y los nodos del cluster de RAC como entre los recursos compartidos exportados desde el dispositivo ZFS Storage Appliance.

Los siguientes fragmentos de código muestran bloques de ejecución modelo de Oracle RMAN para realizar operaciones de copia de seguridad y restauración para conjuntos de copias de seguridad y copias de imágenes, así como para aplicar fusiones incrementales a las copias de las imágenes. El código modelo se basa en la siguiente configuración de base de datos:

• Nombre de base de datos: dbname

• Inicio de sesión en SYSDBA: sys/welcome

• Dirección de análisis: ad01-scan

• Nombres de servicios para la copia de seguridad: dbname_bkup

El dispositivo ZFS Storage Appliance se puede configurar en una configuración de una agrupación en la que el dispositivo exporta ocho recursos compartidos que se usan como ocho puntos de montaje.

Los bloques de ejecución de Oracle RMAN para la copia de seguridad y la restauración que usan conjuntos de copias de seguridad y copias de imágenes se muestran en los ejemplos de las secciones siguientes. En estos ejemplos, se accede a los puntos de montaje de la configuración de cuatro recursos compartidos como /zfssa/dbname/backup1 a /zfssa/dbname/backup4. Asimismo, los ejemplos corresponden a una configuración en la que el dispositivo ZFS Storage Appliance exporta cuatro recursos compartidos usados como cuatro puntos de montaje para 16 canales de Oracle RMAN.

Copia de seguridad de nivel 0 de conjunto de copias de seguridad:

run
{<br/>
   sql ’alter system set "_backup_disk_bufcnt"=64 scope=memory’;<br/>
   sql ’alter system set "_backup_disk_bufsz"=1048576 scope=memory’;<br/>
   allocate channel ch01 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup1’ format ’/zfssa/dbname/backup1/%U’;<br/>
   allocate channel ch02 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup2’ format ’/zfssa/dbname/backup2/%U’;<br/>
   allocate channel ch03 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup1’ format ’/zfssa/dbname/backup3/%U’;<br/>
   allocate channel ch04 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup2’ format ’/zfssa/dbname/backup4/%U’;<br/>
   allocate channel ch05 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup1’ format ’/zfssa/dbname/backup1/%U’;<br/>
   allocate channel ch06 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup2’ format ’/zfssa/dbname/backup2/%U’;<br/>
   allocate channel ch07 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup1’ format ’/zfssa/dbname/backup3/%U’;<br/>
   allocate channel ch08 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup2’ format ’/zfssa/dbname/backup4/%U’;<br/>
   allocate channel ch09 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup1’ format ’/zfssa/dbname/backup2/%U’;<br/>
   allocate channel ch10 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup2’ format ’/zfssa/dbname/backup1/%U’;<br/>
   allocate channel ch11 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup1’ format ’/zfssa/dbname/backup4/%U’;<br/>
   allocate channel ch12 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup2’ format ’/zfssa/dbname/backup3/%U’;<br/>
   allocate channel ch13 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup1’ format ’/zfssa/dbname/backup2/%U’;<br/>
   allocate channel ch14 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup2’ format ’/zfssa/dbname/backup1/%U’;<br/>
   allocate channel ch15 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup1’ format ’/zfssa/dbname/backup4/%U’;<br/>
   allocate channel ch16 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup2’ format ’/zfssa/dbname/backup3/%U’;<br/>
   configure snapshot controlfile name to<br/>
   ’/zfssa/dbname/backup1/snapcf_dbname.f’;<br/>
   backup as backupset incremental level 0 section size 32g database<br/>
   tag ’FULLBACKUPSET_L0’ plus archivelog tag ’FULLBACKUPSET_L0’;    
}

Copia de seguridad de nivel 1 de conjunto de copias de seguridad:

run
{<br/>
   sql ’alter system set "_backup_disk_bufcnt"=64 scope=memory’;<br/>
   sql ’alter system set "_backup_disk_bufsz"=1048576 scope=memory’;<br/>
   allocate channel ch01 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup1’ format ’/zfssa/dbname/backup1/%U’;<br/>
   allocate channel ch02 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup2’ format ’/zfssa/dbname/backup2/%U’;<br/>
   allocate channel ch03 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup1’ format ’/zfssa/dbname/backup3/%U’;<br/>
   allocate channel ch04 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup2’ format ’/zfssa/dbname/backup4/%U’;<br/>
   allocate channel ch05 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup1’ format ’/zfssa/dbname/backup1/%U’;<br/>
   allocate channel ch06 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup2’ format ’/zfssa/dbname/backup2/%U’;<br/>
   allocate channel ch07 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup1’ format ’/zfssa/dbname/backup3/%U’;<br/>
   allocate channel ch08 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup2’ format ’/zfssa/dbname/backup4/%U’;<br/>
   allocate channel ch09 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup1’ format ’/zfssa/dbname/backup2/%U’;<br/>
   allocate channel ch10 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup2’ format ’/zfssa/dbname/backup1/%U’;<br/>
   allocate channel ch11 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup1’ format ’/zfssa/dbname/backup4/%U’;<br/>
   allocate channel ch12 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup2’ format ’/zfssa/dbname/backup3/%U’;<br/>
   allocate channel ch13 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup1’ format ’/zfssa/dbname/backup2/%U’;<br/>
   allocate channel ch14 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup2’ format ’/zfssa/dbname/backup1/%U’;<br/>
   allocate channel ch15 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup1’ format ’/zfssa/dbname/backup4/%U’;<br/>
   allocate channel ch16 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup2’ format ’/zfssa/dbname/backup3/%U’;<br/>
   configure snapshot controlfile name to<br/>
   ’/zfssa/dbname/backup1/snapcf_dbname.f’;<br/>
   backup as backupset incremental level 1 database tag<br/>
   ’FULLBACKUPSET_L1’ plus archivelog tag ’FULLBACKUPSET_L1’;
}

Copia de seguridad de copia de imágenes:

run
{<br/>
   sql ’alter system set "_backup_file_bufcnt"=64 scope=memory’;<br/>
   sql ’alter system set "_backup_file_bufsz"=1048576 scope=memory’;<br/>
   allocate channel ch01 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup1’ format ’/zfssa/dbname/backup1/%U’;<br/>
   allocate channel ch02 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup2’ format ’/zfssa/dbname/backup2/%U’;<br/>
   allocate channel ch03 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup1’ format ’/zfssa/dbname/backup3/%U’;<br/>
   allocate channel ch04 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup2’ format ’/zfssa/dbname/backup4/%U’;<br/>
   allocate channel ch05 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup1’ format ’/zfssa/dbname/backup1/%U’;<br/>
   allocate channel ch06 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup2’ format ’/zfssa/dbname/backup2/%U’;<br/>
   allocate channel ch07 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup1’ format ’/zfssa/dbname/backup3/%U’;<br/>
   allocate channel ch08 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup2’ format ’/zfssa/dbname/backup4/%U’;<br/>
   allocate channel ch09 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup1’ format ’/zfssa/dbname/backup2/%U’;<br/>
   allocate channel ch10 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup2’ format ’/zfssa/dbname/backup1/%U’;<br/>
   allocate channel ch11 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup1’ format ’/zfssa/dbname/backup4/%U’;<br/>
   allocate channel ch12 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup2’ format ’/zfssa/dbname/backup3/%U’;<br/>
   allocate channel ch13 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup1’ format ’/zfssa/dbname/backup2/%U’;<br/>
   allocate channel ch14 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup2’ format ’/zfssa/dbname/backup1/%U’;<br/>
   allocate channel ch15 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup1’ format ’/zfssa/dbname/backup4/%U’;<br/>
   allocate channel ch16 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup2’ format ’/zfssa/dbname/backup3/%U’;<br/>
   configure snapshot controlfile name to<br/>
   ’/zfssa/dbname/backup1/snapcf_dbname.f’;<br/>
   backup incremental level 1 for recover of copy with tag ’IMAGECOPY’<br/>
   database;    
}

Fusión incremental con copia de imágenes:

run
{<br/>
   sql ’alter system set "_backup_disk_bufcnt"=64 scope=memory’;<br/>
   sql ’alter system set "_backup_disk_bufsz"=1048576 scope=memory’;<br/>
   sql ’alter system set "_backup_file_bufcnt"=64 scope=memory’;<br/>
   sql ’alter system set "_backup_file_bufsz"=1048576 scope=memory’;<br/>
   allocate channel ch01 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup1’;<br/>
   allocate channel ch02 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup2’;<br/>
   allocate channel ch03 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup1’;<br/>
   allocate channel ch04 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup2’;<br/>
   allocate channel ch05 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup1’;<br/>
   allocate channel ch06 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup2’;<br/>
   allocate channel ch07 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup1’;<br/>
   allocate channel ch08 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup2’;<br/>
   allocate channel ch09 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup1’;<br/>
   allocate channel ch10 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup2’;<br/>
   allocate channel ch11 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup1’;<br/>
   allocate channel ch12 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup2’;<br/>
   allocate channel ch13 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup1’;<br/>
   allocate channel ch14 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup2’;<br/>
   allocate channel ch15 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup1’;<br/>
   allocate channel ch16 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup2’;<br/>
   configure snapshot controlfile name to<br/>
   ’/zfssa/dbname/backup1/snapcf_dbname.f’;<br/>
   recover copy of database with tag ’IMAGECOPY’;
}

Validación de restauración:

run
{<br/>
   sql ’alter system set "_backup_disk_bufcnt"=64 scope=memory’;<br/>
   sql ’alter system set "_backup_disk_bufsz"=1048576 scope=memory’;<br/>
   sql ’alter system set "_backup_file_bufcnt"=64 scope=memory’;<br/>
   sql ’alter system set "_backup_file_bufsz"=1048576 scope=memory’;<br/>
   allocate channel ch01 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup1’;<br/>
   allocate channel ch02 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup2’;<br/>
   allocate channel ch03 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup1’;<br/>
   allocate channel ch04 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup2’;<br/>
   allocate channel ch05 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup1’;<br/>
   allocate channel ch06 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup2’;<br/>
   allocate channel ch07 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup1’;<br/>
   allocate channel ch08 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup2’;<br/>
   allocate channel ch09 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup1’;<br/>
   allocate channel ch10 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup2’;<br/>
   allocate channel ch11 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup1’;<br/>
   allocate channel ch12 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup2’;<br/>
   allocate channel ch13 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup1’;<br/>
   allocate channel ch14 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup2’;<br/>
   allocate channel ch15 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup1’;<br/>
   allocate channel ch16 device type disk connect ’sys/welcome@ad01-<br/>
   scan/dbname_bkup2’;<br/>
   configure snapshot controlfile name to<br/>
   ’/zfssa/dbname/backup1/snapcf_dbname.f’;<br/>
   restore validate database;
}