认识达内从这里开始

rman的configure如下

RMAN> show all;

RMAN configuration parameters for database with db_unique_name HUBSRAC are:

CONFIGURE RETENTION POLICY TO REDUNDANCY 2;

CONFIGURE BACKUP OPTIMIZATION ON;

CONFIGURE DEFAULT DEVICE TYPE TO DISK; # default

CONFIGURE CONTROLFILE AUTOBACKUP ON;

CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO '%F'; # default

CONFIGURE DEVICE TYPE DISK BACKUP TYPE TO COMPRESSED BACKUPSET PARALLELISM 1;

CONFIGURE DATAFILE BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default

CONFIGURE ARCHIVELOG BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default

CONFIGURE MAXSETSIZE TO UNLIMITED; # default

CONFIGURE ENCRYPTION FOR DATABASE OFF; # default

CONFIGURE ENCRYPTION ALGORITHM 'AES128'; # default

CONFIGURE COMPRESSION ALGORITHM 'MEDIUM' AS OF RELEASE 'DEFAULT' OPTIMIZE FOR LOAD TRUE;

CONFIGURE ARCHIVELOG DELETION POLICY TO BACKED UP 20 TIMES TO DISK;

CONFIGURE SNAPSHOT CONTROLFILE NAME TO '+dg_redo/hubsrac/snapcf_hubsrac.f';

RMAN> corsscheck backup;

RMAN> report obsolete;

RMAN retention policy will be applied to the command

RMAN retention policy is set to redundancy 2

Report of obsolete backups and copies

Type Key Completion Time Filename/Handle

-------------------- ------ ------------------ --------------------

Control File Copy 44 2016/05/31 14:14:26 +DG_REDO01/orclrac/control_snapshot/snapcf_orclrac1.f

发现obsolete的列表里，只有一个controlfile的copy,而且是三个月前的？推算一下，应该是这个库之前做standby的时候遗留下来的，尝试删除这个过期的备份

RMAN> delete obsolete;

RMAN retention policy will be applied to the command

RMAN retention policy is set to redundancy 2

using channel ORA_DISK_1

Deleting the following obsolete backups and copies:

Type Key Completion Time Filename/Handle

-------------------- ------ ------------------ --------------------

Control File Copy 44 2016/05/31 14:14:26 +DG_REDO01/orclrac/control_snapshot/snapcf_orclrac1.f

Do you really want to delete the above objects (enter YES or NO)? YES

deleted control file copy

control file copy file name=+DG_REDO01/orclrac/control_snapshot/snapcf_orclrac1.f RECID=44 STAMP=913299266

Deleted 1 objects

注意已经提示Deleted 1 objects，但是在此report时会发现，这个记录仍然存在

RMAN> report obsolete;

RMAN retention policy will be applied to the command

RMAN retention policy is set to redundancy 2

Report of obsolete backups and copies

Type Key Completion Time Filename/Handle

-------------------- ------ ------------------ --------------------

Control File Copy 44 2016/05/31 14:14:26 +DG_REDO01/orclrac/control_snapshot/snapcf_orclrac1.f

换一种方法删除

RMAN> CROSSCHECK CONTROLFILECOPY '+DG_REDO01/orclrac/control_snapshot/snapcf_orclrac1.f';

released channel: ORA_DISK_1

allocated channel: ORA_DISK_1

channel ORA_DISK_1: SID=2064 instance=orclrac2 device type=DISK

validation failed for control file copy

control file copy file name=+DG_REDO01/orclrac/control_snapshot/snapcf_orclrac1.f RECID=44 STAMP=913299266

Crosschecked 1 objects

RMAN> delete obsolete;

RMAN retention policy will be applied to the command

RMAN retention policy is set to redundancy 2

using channel ORA_DISK_1

Deleting the following obsolete backups and copies:

Type Key Completion Time Filename/Handle

-------------------- ------ ------------------ --------------------

Control File Copy 44 2016/05/31 14:14:26 +DG_REDO01/orclrac/control_snapshot/snapcf_orclrac1.f

Do you really want to delete the above objects (enter YES or NO)? YES

deleted control file copy

control file copy file name=+DG_REDO01/orclrac/control_snapshot/snapcf_orclrac1.f RECID=44 STAMP=913299266

Deleted 1 objects

仍让存在。。。

RMAN> report obsolete;

RMAN retention policy will be applied to the command

RMAN retention policy is set to redundancy 2

Report of obsolete backups and copies

Type Key Completion Time Filename/Handle

-------------------- ------ ------------------ --------------------

Control File Copy 44 2016/05/31 14:14:26 +DG_REDO01/orclrac/control_snapshot/snapcf_orclrac1.f

再换一种方法

RMAN> DELETE FORCE NOPROMPT OBSOLETE DEVICE TYPE DISK; 

If RMAN-06214 still occurs, then try

RMAN> CROSSCHECK COPY OF CONTROLFILE;

还是存在

RMAN> report obsolete;

RMAN retention policy will be applied to the command

RMAN retention policy is set to redundancy 2

Report of obsolete backups and copies

Type Key Completion Time Filename/Handle

-------------------- ------ ------------------ --------------------

Control File Copy 44 2016/05/31 14:14:26 +DG_REDO01/orclrac/control_snapshot/snapcf_orclrac1.f

没办法了，uncatalog之后就没有了，官方上给出的方法：

RMAN> change controlfilecopy '+DG_REDO01/orclrac/control_snapshot/snapcf_orclrac1.f' uncatalog;

uncataloged control file copy

control file copy file name=+DG_REDO01/orclrac/control_snapshot/snapcf_orclrac1.f RECID=44 STAMP=913299266

Uncataloged 1 objects

过期的控制文件备份是干掉了，可是再次去检查obsolete，发现那些老的归档日志备份仍然不是obsolete~

查看一下capture，发现有ogg的capture注册在数据库

SQL> col required_checkpoint_scn for 9999999999999999999

SQL> select capture_name, required_checkpoint_scn from dba_capture;

CAPTURE_NAME REQUIRED_CHECKPOINT_SCN

------------------------------ -----------------------

OGG$CAP_FM1 46264409580

OGG$CAP_ET1 46264410538

根源就在这里，这个库以前作为ogg的source端使用过一段时间，后来业务变更，ogg就停掉了。但是配置ogg时注册进ogg的一些服务并没有清除，ogg 11g的 logretention和12c的integrated在日志没有被抽取的时候，会阻止rman中的归档备份被清除。

登入ogg把之前的两个抽取进程unregister一下

GGSCI  7> dblogin userid oggadmin,password oggadmin

GGSCI 7> unregister extract fm1 database

GGSCI  7> unregister extract et1 database

清除过程中数据库的alert信息如下

GoldenGate Apply: OGG$FM1 APPLY Dropped

APPLY OGG$FM1: Apply User: OGGADMIN

APPLY OGG$FM1: Apply Tag: 00

Tue Aug 30 15:05:40 2016

Streams Capture: OGG$CAP_FM1 CAPTURE Dropped

CAPTURE OGG$CAP_FM1: Start SCN: 46167477979 (0xbfcbcedb.0000000a)

CAPTURE OGG$CAP_FM1: First SCN: 46167477979 (0xbfcbcedb.0000000a)

CAPTURE OGG$CAP_FM1: Required Checkpoint SCN: 46264409580 (0xc592ddec.0000000a)

CAPTURE OGG$CAP_FM1: Captured SCN: 46264409883 (0xc592df1b.0000000a)

CAPTURE OGG$CAP_FM1: Applied SCN: 46264409580 (0xc592ddec.0000000a)

CAPTURE OGG$CAP_FM1: Capture Type: LOCAL

CAPTURE OGG$CAP_FM1: Logminer Id: 4

CAPTURE OGG$CAP_FM1: Source Database: ORCLRAC

Tue Aug 30 15:05:53 2016

ALTER SYSTEM SET service_names='SYS$OGGADMIN.OGG$Q_ET1.ORCLRAC' SCOPE=MEMORY SID='orclrac2';

Tue Aug 30 15:06:31 2016

GoldenGate Apply: OGG$ET1 APPLY Dropped

APPLY OGG$ET1: Apply User: OGGADMIN

APPLY OGG$ET1: Apply Tag: 00

Tue Aug 30 15:06:32 2016

Streams Capture: OGG$CAP_ET1 CAPTURE Dropped

CAPTURE OGG$CAP_ET1: Start SCN: 46165434320 (0xbfac9fd0.0000000a)

CAPTURE OGG$CAP_ET1: First SCN: 46165434320 (0xbfac9fd0.0000000a)

CAPTURE OGG$CAP_ET1: Required Checkpoint SCN: 46264410538 (0xc592e1aa.0000000a)

CAPTURE OGG$CAP_ET1: Captured SCN: 46264410853 (0xc592e2e5.0000000a)

CAPTURE OGG$CAP_ET1: Applied SCN: 46264410538 (0xc592e1aa.0000000a)

CAPTURE OGG$CAP_ET1: Capture Type: LOCAL

CAPTURE OGG$CAP_ET1: Logminer Id: 2

CAPTURE OGG$CAP_ET1: Source Database: ORCLRAC

Tue Aug 30 15:06:42 2016

ALTER SYSTEM SET service_names='hubsrac' SCOPE=MEMORY SID='orclrac2';

再次检查obsolete

RMAN> report obsolete;

RMAN retention policy will be applied to the command

RMAN retention policy is set to redundancy 2

Report of obsolete backups and copies

Type Key Completion Time Filename/Handle

-------------------- ------ ------------------ --------------------

Backup Set 326851 2016/08/28 00:01:42

Backup Piece 326851 2016/08/28 00:01:42 /mnt/orclbackup/log_20160828_328204_1

Backup Set 326855 2016/08/28 01:01:55

Backup Piece 326855 2016/08/28 01:01:55 /mnt/orclbackup/log_20160828_328208_1

Backup Set 326859 2016/08/28 02:01:54

Backup Piece 326859 2016/08/28 02:01:54 /mnt/orclbackup/log_20160828_328212_1

Backup Set 326872 2016/08/28 03:01:44

Backup Piece 326872 2016/08/28 03:01:44 /mnt/orclbackup/log_20160828_328227_1

Backup Set 326880 2016/08/28 04:01:33

Backup Piece 326880 2016/08/28 04:01:33 /mnt/orclbackup/log_20160828_328234_1

Backup Set 326884 2016/08/28 05:01:35

Backup Piece 326884 2016/08/28 05:01:35 /mnt/orclbackup/log_20160828_328238_1

Backup Set 326888 2016/08/28 06:02:08

Backup Piece 326888 2016/08/28 06:02:08 /mnt/orclbackup/log_20160828_328242_1

Backup Set 326892 2016/08/28 07:01:20

Backup Piece 326892 2016/08/28 07:01:20 /mnt/orclbackup/log_20160828_328246_1

Backup Set 326893 2016/08/28 07:02:27

Backup Piece 326893 2016/08/28 07:02:27 /mnt/orclbackup/log_20160828_328247_1

Backup Set 326897 2016/08/28 08:01:17

Backup Piece 326897 2016/08/28 08:01:17 /mnt/orclbackup/log_20160828_328251_1

Backup Set 326898 2016/08/28 08:02:24

Backup Piece 326898 2016/08/28 08:02:24 /mnt/orclbackup/log_20160828_328252_1

Backup Set 326902 2016/08/28 09:01:14

Backup Piece 326902 2016/08/28 09:01:14 /mnt/orclbackup/log_20160828_328256_1

Backup Set 326903 2016/08/28 09:02:19

Backup Piece 326903 2016/08/28 09:02:19 /mnt/orclbackup/log_20160828_328257_1

Backup Set 326907 2016/08/28 10:01:17

Backup Piece 326907 2016/08/28 10:01:17 /mnt/orclbackup/log_20160828_328261_1

Backup Set 326908 2016/08/28 10:02:24

Backup Piece 326908 2016/08/28 10:02:24 /mnt/orclbackup/log_20160828_328262_1

Backup Set 326912 2016/08/28 11:02:08

Backup Piece 326912 2016/08/28 11:02:08 /mnt/orclbackup/log_20160828_328266_1

Backup Set 326916 2016/08/28 12:02:13

Backup Piece 326916 2016/08/28 12:02:13 /mnt/orclbackup/log_20160828_328270_1

Backup Set 326920 2016/08/28 13:02:23

Backup Piece 326920 2016/08/28 13:02:23 /mnt/orclbackup/log_20160828_328274_1

Backup Set 326924 2016/08/28 14:01:26

Backup Piece 326924 2016/08/28 14:01:26 /mnt/orclbackup/log_20160828_328278_1