第十三章： Rman 维护
1、rman 使用和维护
2、list 查看备份信息
1）RMAN> list backup;
2）RMAN> list backup of tablespace users；
3）RMAN> list backup of datafile 2；
4）RMAN> list backup of controlfile;
5) RMAN> list backup of archivelog all;
6）RMAN> list backup of archivelog until time ='sysdate -1';
7）RMAN> list backupset 56;
8）RMAN> list copy；
9）RMAN> list copy of tablespace users；
10）RMAN> list copy of datafile 1；
11）RMAN> list datafilecopy 67；
12）RMAN> list copy of controlfile;
3、crosscheck：用于检测备份状态（AVAILABLE：可用；UNAVAILABLE ：不可用；expired 过期（备份已经被os 删除了）（防止备份在os下被误删除）
RMAN> crosscheck backup;
RMAN> crosscheck copy；
4、report
RMAN> report schema; 查看目标库的物理结构
RMAN> report need backup; 查看需要做备份的datafile
RMAN> report obsolete; 根据备份冗余策略来判断，那些备份是陈旧的（obsolete）
5、delete ；删除备份
RMAN> delete backup of datafile 2;
RMAN> delete backup of tablespace system；
RMAN> delete backup ；
RMAN> delete backup of controlfile；
RMAN> delete noprompt backup of controlfile; ；删除noprompt 不提示
RMAN> delete copy;
RMAN> delete copy of datafile 10;
RMAN> delete copy of tablespace users；
RMAN> delete expired backup； 删除过期的备份
RMAN> delete expired copy；
RMAN> delete obsolete ；删除陈旧的备份
RMAN> delete noprompt obsolete； 删除不加提示
6、catalog ：可以把手工备份的文件，转换到rman
-------将手工备份注册为image
RMAN> catalog datafilecopy '/disk1/backup/prod/hot_bak/users01.dbf';
cataloged datafile copy
datafile copy filename=/disk1/backup/prod/hot_bak/users01.dbf recid=68 stamp=759556193
RMAN> list copy of datafile 2;
List of Datafile Copies
Key File S Completion Time Ckp SCN Ckp Time Name
------- ---- - --------------- ---------- --------------- ----
68 2 A 19-AUG-11 1457868 19-AUG-11 /disk1/backup/prod/hot_bak/users01.dbf
RMAN> delete copy of datafile 2;
-------将手工备份注册成备份集
RMAN> catalog backuppiece '/disk1/backup/prod/hot_bak/users01.dbf';
---------注册目录下所有的备份（image）
RMAN> catalog start with ‘/disk1/backup/prod/hot_bak/’；
7、change: 修改备份状态
RMAN> change backupset 66 unAVAILABLE;
RMAN> change backupset 66 AVAILABLE;
