议rman的crosscheck和obsolete
今天有朋友对于crosscheck和obsolete理解的不太清楚，网上查找了一些资料，也发现很多错误，其中典型的理解就是:crosscheck 可以检测/删除违背(obsolete)备份策略的备份集
--登录rman
[oracle@node1 ~]$ $ORACLE_HOME/bin/rman target /
Recovery Manager: Release 10.2.0.5.0 - Production on Tue Nov 8 13:39:17 2011
Copyright (c) 1982, 2007, Oracle. All rights reserved.
connected to target database: ECP (DBID=1669273445)
RMAN> show all;
using target database control file instead of recovery catalog
RMAN configuration parameters are:
CONFIGURE RETENTION POLICY TO REDUNDANCY 1;
CONFIGURE BACKUP OPTIMIZATION OFF; # default
CONFIGURE DEFAULT DEVICE TYPE TO DISK; # default
CONFIGURE CONTROLFILE AUTOBACKUP OFF; # default
CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO '%F'; # default
CONFIGURE DEVICE TYPE DISK PARALLELISM 2 BACKUP TYPE TO COMPRESSED BACKUPSET;
CONFIGURE DATAFILE BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default
CONFIGURE ARCHIVELOG BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default
CONFIGURE CHANNEL DEVICE TYPE DISK MAXPIECESIZE 2048 M;
CONFIGURE MAXSETSIZE TO UNLIMITED; # default
CONFIGURE ENCRYPTION FOR DATABASE OFF; # default
CONFIGURE ENCRYPTION ALGORITHM 'AES128'; # default
CONFIGURE ARCHIVELOG DELETION POLICY TO NONE; # default
CONFIGURE SNAPSHOT CONTROLFILE NAME TO '/opt/oracle/product/10.2.0/db_1/dbs/snapcf_ecp.f'; # default
--发现配置的策略是保留1份
--全库备份
RMAN> list backup summary;
--当前数据库无备份集备份
RMAN> backup database format '/opt/backup/ecp_full_%U';
Starting backup at 2011-11-08 13:22:06
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=536 devtype=DISK
allocated channel: ORA_DISK_2
channel ORA_DISK_2: sid=534 devtype=DISK
channel ORA_DISK_1: starting compressed full datafile backupset
channel ORA_DISK_1: specifying datafile(s) in backupset
input datafile fno=00004 name=/opt/oracle/oradata/ecp/users01.dbf
input datafile fno=00003 name=/opt/oracle/oradata/ecp/sysaux01.dbf
input datafile fno=00008 name=/opt/oracle/oradata/ecp/TS_Public_1.003.dbf
input datafile fno=00009 name=/opt/oracle/oradata/ecp/TS_Index_Base.001.dbf
input datafile fno=00010 name=/opt/oracle/oradata/ecp/TS_Index_Base.002.dbf
input datafile fno=00011 name=/opt/oracle/oradata/ecp/TS_Index_Base.003.dbf
channel ORA_DISK_1: starting piece 1 at 2011-11-08 13:22:07
channel ORA_DISK_2: starting compressed full datafile backupset
channel ORA_DISK_2: specifying datafile(s) in backupset
input datafile fno=00002 name=/opt/oracle/oradata/ecp/undotbs01.dbf
input datafile fno=00001 name=/opt/oracle/oradata/ecp/system01.dbf
input datafile fno=00012 name=/opt/oracle/oradata/ecp/OGG.001.dbf
input datafile fno=00005 name=/opt/oracle/oradata/ecp/example01.dbf
input datafile fno=00006 name=/opt/oracle/oradata/ecp/TS_Public_1.001.dbf
input datafile fno=00007 name=/opt/oracle/oradata/ecp/TS_Public_1.002.dbf
channel ORA_DISK_2: starting piece 1 at 2011-11-08 13:22:07
channel ORA_DISK_1: finished piece 1 at 2011-11-08 13:22:22
piece handle=/opt/backup/ecp_full_11mr52bv_1_1 tag=TAG20111108T132207 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:15
channel ORA_DISK_1: starting compressed full datafile backupset
channel ORA_DISK_1: specifying datafile(s) in backupset
including current control file in backupset
channel ORA_DISK_1: starting piece 1 at 2011-11-08 13:22:23
channel ORA_DISK_1: finished piece 1 at 2011-11-08 13:22:24
piece handle=/opt/backup/ecp_full_13mr52ce_1_1 tag=TAG20111108T132207 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:02
channel ORA_DISK_1: starting compressed full datafile backupset
channel ORA_DISK_1: specifying datafile(s) in backupset
including current SPFILE in backupset
channel ORA_DISK_1: starting piece 1 at 2011-11-08 13:22:25
channel ORA_DISK_1: finished piece 1 at 2011-11-08 13:22:26
piece handle=/opt/backup/ecp_full_14mr52cg_1_1 tag=TAG20111108T132207 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:02
channel ORA_DISK_2: finished piece 1 at 2011-11-08 13:22:41
piece handle=/opt/backup/ecp_full_12mr52bv_1_1 tag=TAG20111108T132207 comment=NONE
channel ORA_DISK_2: backup set complete, elapsed time: 00:00:34
Finished backup at 2011-11-08 13:22:41
--备份sysdata01.dbf文件
RMAN> backup datafile 1 format '/opt/backup/ecp_system_%U';
Starting backup at 2011-11-08 13:23:44
using channel ORA_DISK_1
using channel ORA_DISK_2
channel ORA_DISK_1: starting compressed full datafile backupset
channel ORA_DISK_1: specifying datafile(s) in backupset
input datafile fno=00001 name=/opt/oracle/oradata/ecp/system01.dbf
channel ORA_DISK_1: starting piece 1 at 2011-11-08 13:23:45
channel ORA_DISK_2: starting compressed full datafile backupset
channel ORA_DISK_2: specifying datafile(s) in backupset
including current control file in backupset
channel ORA_DISK_2: starting piece 1 at 2011-11-08 13:23:45
channel ORA_DISK_2: finished piece 1 at 2011-11-08 13:23:46
piece handle=/opt/backup/ecp_system_16mr52f1_1_1 tag=TAG20111108T132344 comment=NONE
channel ORA_DISK_2: backup set complete, elapsed time: 00:00:01
channel ORA_DISK_2: starting compressed full datafile backupset
channel ORA_DISK_2: specifying datafile(s) in backupset
including current SPFILE in backupset
channel ORA_DISK_2: starting piece 1 at 2011-11-08 13:23:47
channel ORA_DISK_2: finished piece 1 at 2011-11-08 13:23:48
piece handle=/opt/backup/ecp_system_17mr52f2_1_1 tag=TAG20111108T132344 comment=NONE
channel ORA_DISK_2: backup set complete, elapsed time: 00:00:02
channel ORA_DISK_1: finished piece 1 at 2011-11-08 13:24:13
piece handle=/opt/backup/ecp_system_15mr52f1_1_1 tag=TAG20111108T132344 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:28
Finished backup at 2011-11-08 13:24:13
--注：所有备份system空间，都是会自动备份spfile和控制文件
RMAN> list backup summary;
List of Backups
===============
Key TY LV S Device Type Completion Time #Pieces #Copies Compressed Tag
------- -- -- - ----------- ------------------- ------- ------- ---------- ---
28 B F A DISK 2011-11-08 13:22:19 1 1 YES TAG20111108T132207
29 B F A DISK 2011-11-08 13:22:23 1 1 YES TAG20111108T132207
30 B F A DISK 2011-11-08 13:22:25 1 1 YES TAG20111108T132207
31 B F A DISK 2011-11-08 13:22:35 1 1 YES TAG20111108T132207
32 B F A DISK 2011-11-08 13:23:45 1 1 YES TAG20111108T132344
33 B F A DISK 2011-11-08 13:23:47 1 1 YES TAG20111108T132344
34 B F A DISK 2011-11-08 13:24:03 1 1 YES TAG20111108T132344
--查看所有备份集情况
RMAN> crosscheck backup;
using channel ORA_DISK_1
using channel ORA_DISK_2
crosschecked backup piece: found to be 'AVAILABLE'
backup piece handle=/opt/backup/ecp_full_11mr52bv_1_1 recid=28 stamp=766675327
crosschecked backup piece: found to be 'AVAILABLE'
backup piece handle=/opt/backup/ecp_full_13mr52ce_1_1 recid=29 stamp=766675343
crosschecked backup piece: found to be 'AVAILABLE'
backup piece handle=/opt/backup/ecp_full_14mr52cg_1_1 recid=30 stamp=766675345
crosschecked backup piece: found to be 'AVAILABLE'
backup piece handle=/opt/backup/ecp_full_12mr52bv_1_1 recid=31 stamp=766675327
crosschecked backup piece: found to be 'AVAILABLE'
backup piece handle=/opt/backup/ecp_system_16mr52f1_1_1 recid=32 stamp=766675425
crosschecked backup piece: found to be 'AVAILABLE'
backup piece handle=/opt/backup/ecp_system_17mr52f2_1_1 recid=33 stamp=766675427
crosschecked backup piece: found to be 'AVAILABLE'
backup piece handle=/opt/backup/ecp_system_15mr52f1_1_1 recid=34 stamp=766675425
--查看全部有效
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 29 2011-11-08 13:22:23
Backup Piece 29 2011-11-08 13:22:23 /opt/backup/ecp_full_13mr52ce_1_1
Backup Set 30 2011-11-08 13:22:25
Backup Piece 30 2011-11-08 13:22:25 /opt/backup/ecp_full_14mr52cg_1_1
--因为system01.dbf备份了两次，所以违背了备份策略
drwxr-xr-x 2 root root 4096 07-12 15:54 vmdir
[root@node1 opt]# cd /opt/backup/
[root@node1 backup]# ll
总计 265356
-rw-r----- 1 oracle oinstall 47497216 11-08 13:22 ecp_full_11mr52bv_1_1
-rw-r----- 1 oracle oinstall 129433600 11-08 13:22 ecp_full_12mr52bv_1_1
-rw-r----- 1 oracle oinstall 1130496 11-08 13:22 ecp_full_13mr52ce_1_1
-rw-r----- 1 oracle oinstall 98304 11-08 13:22 ecp_full_14mr52cg_1_1
-rw-r----- 1 oracle oinstall 92012544 11-08 13:24 ecp_system_15mr52f1_1_1
-rw-r----- 1 oracle oinstall 1130496 11-08 13:23 ecp_system_16mr52f1_1_1
-rw-r----- 1 oracle oinstall 98304 11-08 13:23 ecp_system_17mr52f2_1_1
[root@node1 backup]# mv ecp_system_15mr52f1_1_1 ecp_system_15mr52f1_1_1_bak
[root@node1 backup]# ll
总计 265356
-rw-r----- 1 oracle oinstall 47497216 11-08 13:22 ecp_full_11mr52bv_1_1
-rw-r----- 1 oracle oinstall 129433600 11-08 13:22 ecp_full_12mr52bv_1_1
-rw-r----- 1 oracle oinstall 1130496 11-08 13:22 ecp_full_13mr52ce_1_1
-rw-r----- 1 oracle oinstall 98304 11-08 13:22 ecp_full_14mr52cg_1_1
-rw-r----- 1 oracle oinstall 92012544 11-08 13:24 ecp_system_15mr52f1_1_1_bak
-rw-r----- 1 oracle oinstall 1130496 11-08 13:23 ecp_system_16mr52f1_1_1
-rw-r----- 1 oracle oinstall 98304 11-08 13:23 ecp_system_17mr52f2_1_1
--对备份集中的其中一个文件重命名
RMAN> crosscheck backup;
using channel ORA_DISK_1
using channel ORA_DISK_2
crosschecked backup piece: found to be 'AVAILABLE'
backup piece handle=/opt/backup/ecp_full_11mr52bv_1_1 recid=28 stamp=766675327
crosschecked backup piece: found to be 'AVAILABLE'
backup piece handle=/opt/backup/ecp_full_13mr52ce_1_1 recid=29 stamp=766675343
crosschecked backup piece: found to be 'AVAILABLE'
backup piece handle=/opt/backup/ecp_full_14mr52cg_1_1 recid=30 stamp=766675345
crosschecked backup piece: found to be 'AVAILABLE'
backup piece handle=/opt/backup/ecp_full_12mr52bv_1_1 recid=31 stamp=766675327
crosschecked backup piece: found to be 'AVAILABLE'
backup piece handle=/opt/backup/ecp_system_16mr52f1_1_1 recid=32 stamp=766675425
crosschecked backup piece: found to be 'AVAILABLE'
backup piece handle=/opt/backup/ecp_system_17mr52f2_1_1 recid=33 stamp=766675427
Crosschecked 6 objects
crosschecked backup piece: found to be 'EXPIRED'
backup piece handle=/opt/backup/ecp_system_15mr52f1_1_1 recid=34 stamp=766675425
Crosschecked 1 objects
--发现一个无效的备份集
RMAN> list backup summary;
List of Backups
===============
Key TY LV S Device Type Completion Time #Pieces #Copies Compressed Tag
------- -- -- - ----------- ------------------- ------- ------- ---------- ---
28 B F A DISK 2011-11-08 13:22:19 1 1 YES TAG20111108T132207
29 B F A DISK 2011-11-08 13:22:23 1 1 YES TAG20111108T132207
30 B F A DISK 2011-11-08 13:22:25 1 1 YES TAG20111108T132207
31 B F A DISK 2011-11-08 13:22:35 1 1 YES TAG20111108T132207
32 B F A DISK 2011-11-08 13:23:45 1 1 YES TAG20111108T132344
33 B F A DISK 2011-11-08 13:23:47 1 1 YES TAG20111108T132344
34 B F X DISK 2011-11-08 13:24:03 1 1 YES TAG20111108T132344
--也标志为无效'X'
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 29 2011-11-08 13:22:23
Backup Piece 29 2011-11-08 13:22:23 /opt/backup/ecp_full_13mr52ce_1_1
Backup Set 30 2011-11-08 13:22:25
Backup Piece 30 2011-11-08 13:22:25 /opt/backup/ecp_full_14mr52cg_1_1
--策略还是显示这两个备份集违背规则
RMAN> DELETE NOPROMPT OBSOLETE;
RMAN retention policy will be applied to the command
RMAN retention policy is set to redundancy 1
using channel ORA_DISK_1
using channel ORA_DISK_2
Deleting the following obsolete backups and copies:
Type Key Completion Time Filename/Handle
-------------------- ------ ------------------ --------------------
Backup Set 29 2011-11-08 13:22:23
Backup Piece 29 2011-11-08 13:22:23 /opt/backup/ecp_full_13mr52ce_1_1
Backup Set 30 2011-11-08 13:22:25
Backup Piece 30 2011-11-08 13:22:25 /opt/backup/ecp_full_14mr52cg_1_1
deleted backup piece
backup piece handle=/opt/backup/ecp_full_13mr52ce_1_1 recid=29 stamp=766675343
deleted backup piece
backup piece handle=/opt/backup/ecp_full_14mr52cg_1_1 recid=30 stamp=766675345
Deleted 2 objects
RMAN> report obsolete;
RMAN retention policy will be applied to the command
RMAN retention policy is set to redundancy 1
no obsolete backups found
--删除违法策略的备份集
RMAN> delete NOPROMPT expired backup;
using channel ORA_DISK_1
using channel ORA_DISK_2
List of Backup Pieces
BP Key BS Key Pc# Cp# Status Device Type Piece Name
------- ------- --- --- ----------- ----------- ----------
34 34 1 1 EXPIRED DISK /opt/backup/ecp_system_15mr52f1_1_1
deleted backup piece
backup piece handle=/opt/backup/ecp_system_15mr52f1_1_1 recid=34 stamp=766675425
Deleted 1 EXPIRED objects
RMAN> crosscheck backup;
using channel ORA_DISK_1
using channel ORA_DISK_2
crosschecked backup piece: found to be 'AVAILABLE'
backup piece handle=/opt/backup/ecp_full_11mr52bv_1_1 recid=28 stamp=766675327
crosschecked backup piece: found to be 'AVAILABLE'
backup piece handle=/opt/backup/ecp_full_12mr52bv_1_1 recid=31 stamp=766675327
crosschecked backup piece: found to be 'AVAILABLE'
backup piece handle=/opt/backup/ecp_system_16mr52f1_1_1 recid=32 stamp=766675425
crosschecked backup piece: found to be 'AVAILABLE'
backup piece handle=/opt/backup/ecp_system_17mr52f2_1_1 recid=33 stamp=766675427
Crosschecked 4 objects
--删除无效的备份集
通过实验说明：crosscheck只能够检测备份集是否有效(最常见的情况就是物理上是否还存在),并且可以用它来删除失效(expired)的备份集，而不是用来删除违背备份策略(obsolete)的备份集，如果要删除违背备份策略(废弃)的备份集，需要使用obsolete操作。出现这个问题的主要原因应该是expired和obsolete翻译成中文的时候理解的出入导致。
议rman的crosscheck和obsolete相关推荐
- oracle rman crosscheck,rman 之crosscheck 与delete expired
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. [执行顺序如下:手工删除archivel ...
- 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-062 ...
- 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-062 ...
- oracle rman crosscheck,rman的crosscheck命令
在操作系统上手动删除备份或归档,rman不会立即知晓此变更,所以需要crosscheck更新备份的状态. 手动rm归档日志 检查归档 RMAN> crosscheck archivelog al ...
- RMAN维护：RMAN中的交叉校验crosscheck
检查所有备份集的状态并判断是否在备份介质上 crosscheck的其他验证命令 RMAN-06091 没有为维护指定通道 相应的类型 错误排查 RMAN 备份的删除 可能有这样的情况:实际存在的备份和 ...
- RMAN crosscheck archivelog all; 失败！
今天碰到了一个怪问题,明明archivelog 备份成功,可是crosscheck的时候去显示 对归档日志的验证失败,到网上搜了一下,发现是NLS_LANG的问题,set NLS_LANG=AMERI ...
- rman命令之crosscheck
一 crosscheck命令目的 备份损坏或者不存在于磁盘而rman资料库中仍记录该备份集或归档为available,那么需要运行crosscheck 进行交叉校验,以更新 rman资料库中过时的信 ...
- rman删除7天前备份_RMAN备份
RMAN备份 rman简介 RMAN(Recovery Manager)是随Oracle服务器软件一同安装的工具软件,它可以用来备份和恢复数据库文件.归档日志和控制文件,用来执行完全或不完全的数据库恢 ...
- delete expired backup 和 delete obsolete
delete expired删除的是那些本来RMAN以为存在但是实际上在磁盘或者磁带上已经被删除了的信息,删除的只是RMAN资料库中的记录:delete obsolete则删除旧于备份保留策略定义的备 ...
最新文章
- 《javascript模式》 容易踩中的那些坑
- 《漫画算法2》源码整理-2 图算法
- JavaWeb学习之路——SSM框架之SpringMVC(七)
- 计算机内部程序代码,计算机为什么能够读懂程序代码？
- 量子通信入门相关书籍
- 微信小程序数据拼接_微信小程序使用原生WebSokcet实现断线重连及数据拼接
- 如何建设可视化集中管理平台
- vue实现上移下移_vue.js实现组件间的上移下移
- 简单OCX控件的开发
- 2011年河南省国民经济和社会发展统计公报
- 万年历c语言代码单链表,万年历的C语言实现
- python 比对两个excel表数据_如何使用python比对两个excel表中的不同？
- 计算机学院运动会加油,学校运会加油稿
- 【2019年05月10日】指数估值排名
- 由C向B：社区团购切换比拼赛道？
- ES6 学习内容记录
- android深度睡眠对广播有什么影响吗,解析智能床垫真的有效提升23.3%的深度睡眠吗？...
- Python网页爬虫工具有哪些?
- 【论文翻译】3461 AdderSR Towards Energy Efficient Image Super-Resolution（个人粗略翻译）
- 畅言插件，http换成https失效了
热门文章
- Galera Cluster for MySQL 集群恢复
- 【JDK】JDK源码分析-HashMap(1)
- LeetCode Find the Duplicate Number 找重复出现的数（技巧）
- UICollectionView,CollectionView,瀑布流
- Django 的cookie 与 session组件
- python 用if判断一个数是不是整数_五天学会Python基础02（下）
- python股票接口_使用SINA接口获取实时股票信息
- mac word维吾尔文字体_字加软件更新啦！万款字体一键激活！
- 局域网计算机中arp,在局域网中的一台计算机上使用了arp－a命令,有如下输出: C:\arp.a Interface: 192.168.0.1 0n - 赏学吧...
- layui 日期重置_日期时间插件--日期时间组件文档 - layui.laydate