oracle 备份：全量、增量、0级、1级、差分、增量

2015-11-18

全量备份=0级增量备份

第1次1级差分增量备份=第1次1级累积增量备份

第2次1级差分增量备份<第2次1级累积增量备份

全量备份、增量备份、0级增量备份、1级增量备份、差分增量备份、累积增量备份
RMAN> backup database format '/u01/app/oracle/backup/full_%u.bak';
RMAN> backup incremental level 0 database format '/u01/app/oracle/backup/lv0_%u.bak';

create table rman_test tablespace users as select * from dba_objects;
insert into rman_test select * from rman_test;
RMAN> backup incremental level 1 database format '/u01/app/oracle/backup/lv1_diff1_%u.bak';
RMAN> backup incremental level 1 cumulative database format '/u01/app/oracle/backup/lv1_cumu1_%u.bak';

insert into rman_test select * from rman_test;
RMAN> backup incremental level 1 database format '/u01/app/oracle/backup/lv1_diff2_%u.bak';
RMAN> backup incremental level 1 cumulative database format '/u01/app/oracle/backup/lv1_cumu2_%u.bak';

[root@mdb backup]# ls -hl
total 2.4G
-rw-r----- 1 oracle oinstall 1.2G Nov 18 18:04 full_20qmjcki.bak
-rw-r----- 1 oracle oinstall 1.2G Nov 18 18:05 lv0_22qmjcm0.bak
-rw-r----- 1 oracle oinstall  18M Nov 18 18:08 lv1_cumu1_26qmjcrh.bak
-rw-r----- 1 oracle oinstall  35M Nov 18 18:10 lv1_cumu2_2aqmjd09.bak
-rw-r----- 1 oracle oinstall  18M Nov 18 18:07 lv1_diff1_24qmjcpd.bak
-rw-r----- 1 oracle oinstall  18M Nov 18 18:09 lv1_diff2_28qmjcug.bak