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转载-RMAN下CROSSCHECK命令详解

时间:2021-07-01 10:21:17 帮助过:39人阅读

RMAN下CROSSCHECK命令详解 在用DELETE OBSOLETE 命令删除废弃的备份文件,如果出现如下错误(RMAN-06207 RMAN-06208),那么需要用CROSSCHECK命令来解决:RMAN-06207: WARNING: 2 objects could not be deleted for DISK channel(s) dueRMAN-06208: to misma

RMAN下CROSSCHECK命令详解 在用DELETE OBSOLETE 命令删除废弃的备份文件,如果出现如下错误(RMAN-06207 & RMAN-06208),那么需要用CROSSCHECK命令来解决: RMAN-06207: WARNING: 2 objects could not be deleted for DISK channel(s) due RMAN-06208: to mismatched status. Use CROSSCHECK command to fix status CROSSCHECK命令用户核对备份文件,以确保RMAN资料库与备份文件保持同步。当执行该命令时,如果RMAN资料库记录的状态与实际备份文件不匹配,则会更新资料库里的状态使其与实际备份文件状态一致;若备份文件处于expired状态,那么说明该备份已失效,可以删除之; 常用命令介绍:

1.CROSSCHECK BACKUP

用于核对数据库、表空间、数据文件、控制文件、归档日志、SPFILE的备份集。 CROSSCHECK BACKUP ; --核对所有备份(包括有效和失效的备份) CROSSCHECK BACKUP of database; --核对除控制文件、归档文件外的备份文件 CROSSCHECK BACKUP of tablespace system; CROSSCHECK BACKUP of datafile 1; CROSSCHECK BACKUP of controlfile; CROSSCHECK BACKUP of archivelog all; CROSSCHECK BACKUP of archivelog sequence 3; CROSSCHECK BACKUP of spfile;

2.CROSSCHECK BACKUPPIECE

用于 核对特定备份片,该命令需要制定备份片的BP值或备份片名称; CROSSCHECK BACKUPPIECE 24; CROSSCHECK BACKUPPIECE '/u01/app/oracle/rman_backup/OCPYJG_28';

3.CROSSCHECK BACKUPSET

用于核对特定的备份集,该命令需要制定备份集的BP值; CROSSCHECK BACKUPSET 24;

4.CROSSCHECK COPY

用于核对数据库、表空间、数据文件、控制文件、归档文件的映像副本(即备份是用COPY DATAFILE ...... 或BACKUP AS COPY ......DATAFILE......命令备份数据文件的映像) CROSSCHECK COPY; CROSSCHECK COPY of database; CROSSCHECK COPY of tablespace system; CROSSCHECK COPY of datafile 1; CROSSCHECK COPY of controlfile; CROSSCHECK COPY of archivelog all; CROSSCHECK COPY of archivelog from sequence 24 until sequence 32;

5.CROSSCHECK DTAFILECOPY

用于核对特定的数据文件映像副本,该命令需要指定映像副本的文件名或KEY值; CROSSCHECK DATAFILECOPY 2; CROSSCHECK DATAFILECOPY '/u01/app/oracle/rman_backup/tp9.dbf';

6.CROSSCHECK CONTROLFILECOPY

用于核对特定的控制文件映像副本,该命令需要指定控制文件映像副本的文件名或KEY值; CROSSCHECK CONTROLFILECOPY 3; CROSSCHECK CONTROLFILECOPY '/u01/app/oracle/rman_backup/controlfile01.ctl;

7.CROSSCHECK ARCHIVELOG

用于核对特定的归档日志,该命令需要指定归档日志的文件名或KEY值或SEQUENCE值; CROSSCHECK ARCHIVELOG 36; CROSSCHECK ARCHIVELOG 'crosscheck archivelog '/u01/app/oracle/product/11g/dbs/arch1_6_813161833.dbf'; CROSSCHECK ARCHIVELOG sequence 7;

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