oracle rman

当手工删除了归档日志以后，Rman备份会检测到日志缺失，从而无法进一步继续执行。
所以此时需要手工执行crosscheck过程，之后Rman备份可以恢复正常。
1.Crosscheck日志

$ rman target /
Recovery Manager: Release 9.2.0.4.0 - 64bit Production
Copyright (c) 1995, 2002, Oracle Corporation.  All rights reserved.
connected to target database: AVATAR2 (DBID=2480694409)

RMAN> crosscheck archivelog all;

using target database controlfile instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=25 devtype=DISK
validation failed for archived log
archive log filename=/opt/oracle/oradata/avatar2/archive/1_2714.dbf recid=2702 stamp=545107659
validation failed for archived log
archive log filename=/opt/oracle/oradata/avatar2/archive/1_2715.dbf recid=2703 stamp=545108268
...........
validation failed for archived log
archive log filename=/opt/oracle/oradata/avatar2/archive/1_2985.dbf recid=2973 stamp=545399327
validation succeeded for archived log
archive log filename=/opt/oracle/oradata/avatar2/archive/1_2986.dbf recid=2974 stamp=545400820
validation succeeded for archived log
archive log filename=/opt/oracle/oradata/avatar2/archive/1_2987.dbf recid=2975 stamp=545401757
validation succeeded for archived log
archive log filename=/opt/oracle/oradata/avatar2/archive/1_2988.dbf recid=2976 stamp=545402716
validation succeeded for archived log
archive log filename=/opt/oracle/oradata/avatar2/archive/1_2989.dbf recid=2977 stamp=545403661
validation succeeded for archived log
archive log filename=/opt/oracle/oradata/avatar2/archive/1_2990.dbf recid=2978 stamp=545404946
validation succeeded for archived log
archive log filename=/opt/oracle/oradata/avatar2/archive/1_2991.dbf recid=2979 stamp=545406220
Crosschecked 278 objects

RMAN>  2.使用delete expired archivelog all 命令删除所有过期归档日志:

 

RMAN> delete expired archivelog all;

released channel: ORA_DISK_1
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=12 devtype=DISK

List of Archived Log Copies
Key    Thrd Seq    S Low Time  Name
------- ---- ------- - --------- ----
376    1    2714    X 23-NOV-04 =/opt/oracle/oradata/avatar2/archive/1_2714.dbf 
.....

3.简要介绍一下report obsolete命令

使用report obsolete命令报告过期备份

RMAN> report obsolete;

RMAN retention policy will be applied to the command
RMAN retention policy is set to redundancy 1
Report of obsolete backups and copies
Type                Key    Completion Time    Filename/Handle
-------------------- ------ ------------------ --------------------
Backup Set          125    01-NOV-04        
  Backup Piece      125    01-NOV-04          /data1/oracle/orabak/full_1_541045804
Backup Set          131    04-NOV-04        
  Backup Piece      131    04-NOV-04          /data1/oracle/orabak/full_AVATAR2_20041104_131
....
Backup Set          173    06-DEC-04        
  Backup Piece      173    06-DEC-04          /data1/oracle/orabak/full_AVATAR2_20041206_173
Backup Set          179    11-DEC-04        
  Backup Piece      179    11-DEC-04          /data1/oracle/orabak/arch544588206.arc
.....
  Backup Piece      189    17-DEC-04          /data1/oracle/orabak/arch545106606.arc
Backup Set          190    17-DEC-04        
  Backup Piece      190    17-DEC-04          /data1/oracle/orabak/arch545106665.arc
Backup Set          191    20-DEC-04        
  Backup Piece      191    20-DEC-04          /data1/oracle/orabak/arch_AVATAR2_20041220_194
Archive Log          2973  20-DEC-04          /opt/oracle/oradata/avatar2/archive/1_2985.dbf
Archive Log          2971  20-DEC-04          /opt/oracle/oradata/avatar2/archive/1_2984.dbf
.....
Archive Log          2705  17-DEC-04          /opt/oracle/oradata/avatar2/archive/1_2717.dbf
Archive Log          2704  17-DEC-04          /opt/oracle/oradata/avatar2/archive/1_2716.dbf
Archive Log          2703  17-DEC-04          /opt/oracle/oradata/avatar2/archive/1_2715.dbf
Archive Log          2702  17-DEC-04          /opt/oracle/oradata/avatar2/archive/1_2714.dbf

4.使用delete obsolete命令删除过期备份:

RMAN> delete obsolete;

RMAN retention policy will be applied to the command
RMAN retention policy is set to redundancy 1
using channel ORA_DISK_1
Deleting the following obsolete backups and copies:
Type                Key    Completion Time    Filename/Handle
-------------------- ------ ------------------ --------------------
Backup Set          125    01-NOV-04        
  Backup Piece      125    01-NOV-04          /data1/oracle/orabak/full_1_541045804
....
Archive Log          2704  17-DEC-04          /opt/oracle/oradata/avatar2/archive/1_2716.dbf
Archive Log          2703  17-DEC-04          /opt/oracle/oradata/avatar2/archive/1_2715.dbf
Archive Log          2702  17-DEC-04          /opt/oracle/oradata/avatar2/archive/1_2714.dbf

Do you really want to delete the above objects (enter YES or NO)? yes
deleted backup piece
backup piece handle=/data1/oracle/orabak/full_AVATAR2_20041206_173 recid=173 stamp=544156241
.....
deleted archive log
archive log filename=/opt/oracle/oradata/avatar2/archive/1_2715.dbf recid=2703 stamp=545108268
deleted archive log
archive log filename=/opt/oracle/oradata/avatar2/archive/1_2714.dbf recid=2702 stamp=545107659
Deleted 286 objects


RMAN> crosscheck archivelog all;

released channel: ORA_DISK_1
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=19 devtype=DISK
specification does not match any archive log in the recovery catalog