oracle数据库全备份和增量备份

1、1. 检查数据库模式:查看数据库是否处于归档模式中 sqlplus /no log conn /as sysdba archive log list (假设为非归档，那么修改数据库归档模式。startup mountalter database archivelogalter database ope n2. 连接到target数据库命令：connect target / (c onnect也可要直接在 rman命令下用startup 可以连接至U target database.(rman file(nocatalog mode),control filetarget system/orac

2、leora10g,如果数据库没有起来，进行启动数据库con trol一边连接到target数据库，另外一边连接到 中存储rman的备份信息3. 用list backupset命令查看有没有备份4. 常用备份命令：备份全库：RMAN> backup database plus archivelog delete in put;备份全库与控制文件、服务器参数文件与所有归档的重做日志，并删除旧的归档日志备份表空间：RMAN> backup tablespace system plus archivelog delete in put; 备份指定表空间与归档的重做日志，并删除旧的归档日志_

3、备份归档日志：RMAN> backup archivelog all delete in put;1.全库备份备份数据文件中有数据的，有数据文件，控制文件，归档日志文件，spfile文件，不备份联机重做日志文件或临时文件RMAN>CONFIGURE CONTROLFILE AUTOBACKUP ON 控制文件自动备份RMAN>CONFIGURE DEVICE TYPE DISK PARALLELISM 2 backup type to compressedbackupset;- 压缩RMAN>CONFIGURE cha nnel DEVICE TYPE DISK for

4、mat 'D:APPrma nfull%s.bk'-备份的路径RMAN>BACKUP DATABASE;全备份RMAN>list backup of database;-检查备份信息RMAN>backup archivelog all delete in put;-备份归档日志并删除归档日志RMAN> list backup of archivelog all;-检查归档日志2.差异增量备份RMAN>backup in creme ntal level 0 database; -0级全备份RMAN>backup in creme ntal l

5、evel 2 database;-2级备份RMAN> list backup of database;-检查备份信息Differential Incremental Backup: Examplen level backup of all blocks that have changed since the mott r*c*nt backup al l«v*l n or Iowog3.累积增量备份2c不做参照对象RMAN> backup in creme ntal level 2 cumulative database;Cumulative Incremental Ba

6、ckup: Examplen level backup which contains all blocks changed sinco the previous backup a level n - 1 or lower中心数据库，RMAN一周备份方案0.星期天晚上1. 星期一晚上2. 星期二晚上3. 星期三晚上4. 星期四晚上5. 星期五晚上6. 星期六晚上-level 0 backup performed( -level 2 backup performed -level 2 backup performed -level 1 backup performed -level 2 backu

7、p performed -level 2 backup performed -level 2 backup performed全备份如果星期二需要恢复的话，只需要 0+1,如果星期四需要恢复的话，只需要 0+3,如果星期五需要恢复的话，只需要 0+3+4, 如果星期六需要恢复的话，只需要 0+3+4+5具体步骤：1.创立 0,1,2 级备份脚本 D:rman_bak_scriptrunallocate cha nnel c1 type disk;allocate cha nnel c2 type disk;allocate cha nnel c3 type disk;backup as com

8、pressed backupset in creme ntal level 0 tag 'db_level0' format 'H:RMAN_BAKlevel0_%u_%s_%p.bak：sql 'alter system archive log curre nt：backup as compressed backupset archivelog all format 'H:ARCHIVELOG_BAKarch0_%u_%s_%p' delete in put;delete no prompt obsolete;release cha nnel

9、c1;release cha nnel c2;release cha nnel c3;runallocate cha nnel c1 type disk;allocate cha nnel c2 type disk;allocate cha nnel c3 type disk;backup as compressed backupset in creme ntal level 1 tag 'db_level1' format 'H:RMAN_BAKlevel1_%u_%s_%p.bak'sql 'alter system archive log curr

10、e nt：backup as compressed backupsetarchivelog alldatabasedatabaseformat'H:ARCHIVELOG_BAKarch1_%u_%s_%p' delete in put;delete no prompt obsolete; release cha nnel c1;release cha nnel c2;release cha nnel c3;runallocate cha nnel cl type disk;allocate cha nnel c2 type disk;allocate cha nnel c3 t

11、ype disk;backup as compressed backupset in creme ntal level 2 tag 'db_level2' database format 'H:RMAN_BAKlevel2_%u_%s_%p.bak：sql 'alter system archive log curre nt：backup as compressed backupsetarchivelog all format'H:ARCHIVELOG_BAKarch2_%u_%s_%p' delete in put;delete no prom

12、pt obsolete;release cha nnel c1;release cha nnel c2;release cha nnel c3;2.创立周日至周六执行的批处理文件MonSun星期天 rma n target / logD:rman_bak_scriptSu nrma nlog_Su n%date:0,4%_%date:5,2%_%date:8,2%.txt cmdfile=D:rma n_bak_scriptrma n_levelO d星期一 rma n target / logD:rman_bak_scriptM onrma nlog_Mo n%date:0,4%_%date

13、:5,2%_%date:8,2%.txt cmdfile=D:rma n_bak_scriptrma n_level2 d星期二 rma n target / logD:rman_bak_scriptTuerma nlog_Tue%date:0,4%_%date:5,2%_%date:8,2%.txt cmdfile=D:rma n_bak_scriptrma n_level2 d星期三 rma n target / logD:rman_bak_scriptWe nrma nlog_We n%date:0,4%_%date:5,2%_%date:8,2%.txt cmdfile=D:rma n_bak_scriptrma n_level1 d星期四 rma n target / logD:rman_bak_scriptThurma nlog_Thu%date:0,4%_%date:5,2%_%date:8,2%.txt cmdfile=D:rma n_bak_scriptrma n_level2 d星期五 rma n target / logD:rman_bak_scriptFrirma nlog_Fri%date:0,4%_%date:5,2%_%date:8,2%.txt cmdfile=D:rma n_bak_scriptrma