​[20211020]改变备库的rman配置.txt

[20211020]改变备库的rman配置.txt --//想在备库上做备份,以前从来没有做过，需要修改rman的配置参数。遇到的问题。 1.环境： SYS@192.168.aaa.bbb:1521/xxx999dg2> @ ver1 PORT_STRING                    VERSION        BANNER ------------------------------ -------------- -------------------------------------------------------------------------------- x86_64/Linux 2.4.xx            11.2.0.3.0     Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production RMAN> show  RETENTION POLICY; RMAN configuration parameters for database with db_unique_name xxx999DG2 are: CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 7 DAYS; RMAN> configure retention policy to recovery window of 8 days; using target database control file instead of recovery catalog RMAN-00571: =========================================================== RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS =============== RMAN-00571: =========================================================== RMAN-03002: failure of configure command at 10/20/2021 16:43:11 RMAN-05021: this configuration cannot be changed for a BACKUP or STANDBY control file --//尝试不在show all里面的一些特殊参数。 RMAN> CONFIGURE CHANNEL DEVICE TYPE DISK RATE 100 M; new RMAN configuration parameters: CONFIGURE CHANNEL DEVICE TYPE DISK RATE 100 M; new RMAN configuration parameters are successfully stored -//OK。 RMAN> CONFIGURE CHANNEL DEVICE TYPE DISK clear ; old RMAN configuration parameters are successfully deleted 2.常规方法很明显我只能在主库先修改参数，然后建立STANDBY control file，再拷贝到dg使用。 --//找到一个链接：https://mdinh.wordpress.com/2021/10/12/how-to-change-rman-config-for-standby-db/ SYS@xxx999dg2> select dbms_backup_restore.setconfig('RETENTION POLICY','TO RECOVERY WINDOW OF 8 DAYS') from dual ; DBMS_BACKUP_RESTORE.SETCONFIG('RETENTIONPOLICY','TORECOVERYWINDOWOF8DAYS') --------------------------------------------------------------------------                                                                          2 SYS@xxx999dg2> select * from v$rman_configuration;      CONF# NAME                 VALUE ---------- -------------------- ----------------------------          1 RETENTION POLICY     TO RECOVERY WINDOW OF 7 DAYS          2 RETENTION POLICY     TO RECOVERY WINDOW OF 8 DAYS --//昏遇到与原链接一样的情况,出现2行。 RMAN> show  RETENTION POLICY; RMAN configuration parameters for database with db_unique_name xxx999DG2 are: CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 7 DAYS; CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 8 DAYS; SYS@xxx999dg2> exec DBMS_BACKUP_RESTORE.DELETECONFIG(1); PL/SQL procedure successfully completed. SYS@xxx999dg2> select * from v$rman_configuration;      CONF# NAME                 VALUE ---------- -------------------- ----------------------------          2 RETENTION POLICY     TO RECOVERY WINDOW OF 8 DAYS RMAN> show  RETENTION POLICY; RMAN configuration parameters for database with db_unique_name xxx999DG2 are: CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 8 DAYS; SYS@xxx999dg2> select dbms_backup_restore.setconfig('RETENTION POLICY','TO REDUNDANCY 1') from dual ; DBMS_BACKUP_RESTORE.SETCONFIG('RETENTIONPOLICY','TOREDUNDANCY1') ----------------------------------------------------------------                                                                1 SYS@xxx999dg2> exec DBMS_BACKUP_RESTORE.DELETECONFIG(2); PL/SQL procedure successfully completed. SYS@xxx999dg2> select * from v$rman_configuration;      CONF# NAME                 VALUE ---------- -------------------- ---------------          1 RETENTION POLICY     TO REDUNDANCY 1 RMAN> show  RETENTION POLICY; RMAN configuration parameters for database with db_unique_name xxx999DG2 are: CONFIGURE RETENTION POLICY TO REDUNDANCY 1; --//OK,通过这个参数可以实现修改备库的参数配置。