在ORACLE 12C中對rman的功能有了不少增強,在以前的文章中寫過RMAN RECOVER TABLE功能,這裡另外補充rman增強的兩個小功能(sql語句和資料檔案分割)
資料庫版本
SQL> select * from v$version;BANNER CON_ID-------------------------------------------------------------------------------- ----------Oracle Database 12c Enterprise Edition Release 12.1.0.1.0 - 64bit Production 0PL/SQL Release 12.1.0.1.0 - Production 0CORE 12.1.0.1.0 Production 0TNS for Linux: Version 12.1.0.1.0 - Production 0NLSRTL Version 12.1.0.1.0 - Production 0 |
rman對sql語句支援增強
[oracle@xifenfei tmp]$ rman target /Recovery Manager: Release 12.1.0.1.0 - Production on Sat Jun 1 14:07:50 2013Copyright (c) 1982, 2013, Oracle and/or its affiliates. All rights reserved.connected to target database: CDB (DBID=1922813718)RMAN> select sysdate from dual;using target database control file instead of recovery catalogSYSDATE ---------01-JUN-13RMAN> alter session set nls_date_format='yyyy-mm-dd hh24:mi:ss';Statement processedRMAN> select sysdate from dual;SYSDATE -------------------2013-06-01 14:16:48RMAN> desc v$log Name Null? Type ----------------------------------------- -------- ---------------------------- GROUP# NUMBER THREAD# NUMBER SEQUENCE# NUMBER BYTES NUMBER BLOCKSIZE NUMBER MEMBERS NUMBER ARCHIVED VARCHAR2(3) STATUS VARCHAR2(16) FIRST_CHANGE# NUMBER FIRST_TIME DATE NEXT_CHANGE# NUMBER NEXT_TIME DATE CON_ID NUMBER |
這裡看到rman只是sql語句中的select和desc用法
rman分割資料檔案增強
RMAN> CONFIGURE DEVICE TYPE DISK PARALLELISM 3;old RMAN configuration parameters:CONFIGURE DEVICE TYPE DISK PARALLELISM 1 BACKUP TYPE TO BACKUPSET;new RMAN configuration parameters:CONFIGURE DEVICE TYPE DISK PARALLELISM 3 BACKUP TYPE TO BACKUPSET;new RMAN configuration parameters are successfully storedRMAN> backup incremental level 1 section size 30M datafile 1 format '/tmp/system_%U.rman';Starting backup at 01-JUN-13allocated channel: ORA_DISK_1channel ORA_DISK_1: SID=27 device type=DISKallocated channel: ORA_DISK_2channel ORA_DISK_2: SID=269 device type=DISKallocated channel: ORA_DISK_3channel ORA_DISK_3: SID=24 device type=DISKno parent backup or copy of datafile 1 foundchannel ORA_DISK_1: starting incremental level 1 datafile backup setchannel ORA_DISK_1: specifying datafile(s) in backup setinput datafile file number=00001 name=+DATA/cdb/system01.dbfbacking up blocks 1 through 3840channel ORA_DISK_1: starting piece 1 at 01-JUN-13channel ORA_DISK_2: starting incremental level 1 datafile backup setchannel ORA_DISK_2: specifying datafile(s) in backup setinput datafile file number=00001 name=+DATA/cdb/system01.dbf……………………backing up blocks 96001 through 99840channel ORA_DISK_3: starting piece 26 at 01-JUN-13channel ORA_DISK_1: finished piece 24 at 01-JUN-13piece handle=/tmp/system_02ob3pg1_24_1.rman tag=TAG20130601T144518 comment=NONEchannel ORA_DISK_1: backup set complete, elapsed time: 00:00:08channel ORA_DISK_1: starting incremental level 1 datafile backup setchannel ORA_DISK_1: specifying datafile(s) in backup setinput datafile file number=00001 name=+DATA/cdb/system01.dbfbacking up blocks 99841 through 101120channel ORA_DISK_1: starting piece 27 at 01-JUN-13channel ORA_DISK_2: finished piece 25 at 01-JUN-13piece handle=/tmp/system_02ob3pg1_25_1.rman tag=TAG20130601T144518 comment=NONEchannel ORA_DISK_2: backup set complete, elapsed time: 00:00:07channel ORA_DISK_3: finished piece 26 at 01-JUN-13piece handle=/tmp/system_02ob3pg1_26_1.rman tag=TAG20130601T144518 comment=NONEchannel ORA_DISK_3: backup set complete, elapsed time: 00:00:06channel ORA_DISK_1: finished piece 27 at 01-JUN-13piece handle=/tmp/system_02ob3pg1_27_1.rman tag=TAG20130601T144518 comment=NONEchannel ORA_DISK_1: backup set complete, elapsed time: 00:00:07Finished backup at 01-JUN-13 |
備份檔案情況
[oracle@xifenfei tmp]$ ll -ltr system*-rw-r----- 1 oracle dba 14761984 Jun 1 14:45 system_02ob3pg1_1_1.rman-rw-r----- 1 oracle dba 9535488 Jun 1 14:45 system_02ob3pg1_2_1.rman-rw-r----- 1 oracle dba 16973824 Jun 1 14:45 system_02ob3pg1_4_1.rman-rw-r----- 1 oracle dba 18284544 Jun 1 14:45 system_02ob3pg1_3_1.rman-rw-r----- 1 oracle dba 12804096 Jun 1 14:45 system_02ob3pg1_5_1.rman-rw-r----- 1 oracle dba 29163520 Jun 1 14:45 system_02ob3pg1_6_1.rman-rw-r----- 1 oracle dba 31326208 Jun 1 14:46 system_02ob3pg1_7_1.rman-rw-r----- 1 oracle dba 30851072 Jun 1 14:46 system_02ob3pg1_8_1.rman-rw-r----- 1 oracle dba 30801920 Jun 1 14:46 system_02ob3pg1_9_1.rman-rw-r----- 1 oracle dba 23977984 Jun 1 14:46 system_02ob3pg1_11_1.rman-rw-r----- 1 oracle dba 28508160 Jun 1 14:46 system_02ob3pg1_10_1.rman-rw-r----- 1 oracle dba 30277632 Jun 1 14:46 system_02ob3pg1_12_1.rman-rw-r----- 1 oracle dba 31498240 Jun 1 14:46 system_02ob3pg1_13_1.rman-rw-r----- 1 oracle dba 31498240 Jun 1 14:47 system_02ob3pg1_14_1.rman-rw-r----- 1 oracle dba 31498240 Jun 1 14:47 system_02ob3pg1_15_1.rman-rw-r----- 1 oracle dba 30507008 Jun 1 14:47 system_02ob3pg1_17_1.rman-rw-r----- 1 oracle dba 30834688 Jun 1 14:47 system_02ob3pg1_16_1.rman-rw-r----- 1 oracle dba 31498240 Jun 1 14:47 system_02ob3pg1_18_1.rman-rw-r----- 1 oracle dba 30244864 Jun 1 14:47 system_02ob3pg1_19_1.rman-rw-r----- 1 oracle dba 29016064 Jun 1 14:47 system_02ob3pg1_20_1.rman-rw-r----- 1 oracle dba 29212672 Jun 1 14:47 system_02ob3pg1_21_1.rman-rw-r----- 1 oracle dba 30728192 Jun 1 14:47 system_02ob3pg1_22_1.rman-rw-r----- 1 oracle dba 29384704 Jun 1 14:47 system_02ob3pg1_23_1.rman-rw-r----- 1 oracle dba 26566656 Jun 1 14:47 system_02ob3pg1_24_1.rman-rw-r----- 1 oracle dba 24928256 Jun 1 14:48 system_02ob3pg1_25_1.rman-rw-r----- 1 oracle dba 19324928 Jun 1 14:48 system_02ob3pg1_26_1.rman-rw-r----- 1 oracle dba 6291456 Jun 1 14:48 system_02ob3pg1_27_1.rman |
在12C之前的版本，ORACLE 11GR2只是對於全備的備份集備份(非增量,非copy備份方式)方式支援資料檔案分割備份功能,對於11.2之前的版本均不支援該功能.在12C中rman可以支援對於全備,增量備份,copy備份全部支援分割資料檔案備份(CONTROLFILE,SPFILE不支援)
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