ORACLE 12C RMAN 功能增强

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标题:ORACLE 12C RMAN 功能增强

作者:惜分飞©版权所有[未经本人同意,不得以任何形式转载,否则有进一步追究法律责任的权利.]

在ORACLE 12C中对rman的功能有了不少增强,在以前的文章中写过RMAN RECOVER TABLE功能,这里另外补充rman增强的两个小功能(sql语句和数据文件分割)
数据库版本

SQL>  select * from v$version;

BANNER                                                                               CON_ID
-------------------------------------------------------------------------------- ----------
Oracle Database 12c Enterprise Edition Release 12.1.0.1.0 - 64bit Production              0
PL/SQL Release 12.1.0.1.0 - Production                                                    0
CORE    12.1.0.1.0      Production                                                        0
TNS for Linux: Version 12.1.0.1.0 - Production                                            0
NLSRTL Version 12.1.0.1.0 - Production                                                    0

rman对sql语句支持增强

[oracle@xifenfei tmp]$ rman target /

Recovery Manager: Release 12.1.0.1.0 - Production on Sat Jun 1 14:07:50 2013

Copyright (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 catalog
SYSDATE  
---------
01-JUN-13

RMAN> alter session set nls_date_format='yyyy-mm-dd hh24:mi:ss';

Statement processed

RMAN>  select sysdate from dual;

SYSDATE            
-------------------
2013-06-01 14:16:48

RMAN> 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                      

这里看到rman只是sql语句中的select和desc用法

rman分割数据文件增强

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 stored

RMAN> backup incremental level 1 section size 30M datafile 1 format '/tmp/system_%U.rman';

Starting backup at 01-JUN-13
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=27 device type=DISK
allocated channel: ORA_DISK_2
channel ORA_DISK_2: SID=269 device type=DISK
allocated channel: ORA_DISK_3
channel ORA_DISK_3: SID=24 device type=DISK
no parent backup or copy of datafile 1 found
channel ORA_DISK_1: starting incremental level 1 datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
input datafile file number=00001 name=+DATA/cdb/system01.dbf
backing up blocks 1 through 3840
channel ORA_DISK_1: starting piece 1 at 01-JUN-13
channel ORA_DISK_2: starting incremental level 1 datafile backup set
channel ORA_DISK_2: specifying datafile(s) in backup set
input datafile file number=00001 name=+DATA/cdb/system01.dbf
……………………
backing up blocks 96001 through 99840
channel ORA_DISK_3: starting piece 26 at 01-JUN-13
channel ORA_DISK_1: finished piece 24 at 01-JUN-13
piece handle=/tmp/system_02ob3pg1_24_1.rman tag=TAG20130601T144518 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:08
channel ORA_DISK_1: starting incremental level 1 datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
input datafile file number=00001 name=+DATA/cdb/system01.dbf
backing up blocks 99841 through 101120
channel ORA_DISK_1: starting piece 27 at 01-JUN-13
channel ORA_DISK_2: finished piece 25 at 01-JUN-13
piece handle=/tmp/system_02ob3pg1_25_1.rman tag=TAG20130601T144518 comment=NONE
channel ORA_DISK_2: backup set complete, elapsed time: 00:00:07
channel ORA_DISK_3: finished piece 26 at 01-JUN-13
piece handle=/tmp/system_02ob3pg1_26_1.rman tag=TAG20130601T144518 comment=NONE
channel ORA_DISK_3: backup set complete, elapsed time: 00:00:06
channel ORA_DISK_1: finished piece 27 at 01-JUN-13
piece handle=/tmp/system_02ob3pg1_27_1.rman tag=TAG20130601T144518 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:07
Finished backup at 01-JUN-13

备份文件情况

[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只是对于全备的备份集备份(非增量,非copy备份方式)方式支持数据文件分割备份功能,对于11.2之前的版本均不支持该功能.在12C中rman可以支持对于全备,增量备份,copy备份全部支持分割数据文件备份(CONTROLFILE,SPFILE不支持)

此条目发表在 ORACLE 12C, rman备份/恢复 分类目录。将固定链接加入收藏夹。

ORACLE 12C RMAN 功能增强》有 2 条评论

  1. 惜分飞 说:

    11.2.0.3 支持基于scn的section 备份

    SQL> select * from v$version;
    
    BANNER
    --------------------------------------------------------------------------------
    Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - Production
    PL/SQL Release 11.2.0.3.0 - Production
    CORE    11.2.0.3.0      Production
    TNS for Linux: Version 11.2.0.3.0 - Production
    NLSRTL Version 11.2.0.3.0 - Production
    
    RMAN> BACKUP INCREMENTAL FROM SCN 12217079076408
      section size 30M  DATAFILE 1 FORMAT '/tmp/ForStandby_%U' TAG 'FORSTANDBY';
    
    Starting backup at 27-AUG-13
    
    using channel ORA_DISK_1
    backup will be obsolete on date 03-SEP-13
    archived logs will not be kept or backed up
    channel ORA_DISK_1: starting full datafile backup set
    channel ORA_DISK_1: specifying datafile(s) in backup set
    input datafile file number=00001 name=/u01/oracle/oradata/ora11g/system01.dbf
    channel ORA_DISK_1: starting piece 1 at 27-AUG-13
    channel ORA_DISK_1: finished piece 1 at 27-AUG-13
    piece handle=/tmp/ForStandby_04oicqqr_1_1 tag=FORSTANDBY comment=NONE
    channel ORA_DISK_1: backup set complete, elapsed time: 00:02:06
    
    using channel ORA_DISK_1
    backup will be obsolete on date 03-SEP-13
    archived logs will not be kept or backed up
    channel ORA_DISK_1: starting full datafile backup set
    channel ORA_DISK_1: specifying datafile(s) in backup set
    including current control file in backup set
    channel ORA_DISK_1: starting piece 1 at 27-AUG-13
    channel ORA_DISK_1: finished piece 1 at 27-AUG-13
    piece handle=/tmp/ForStandby_05oicqup_1_1 tag=FORSTANDBY comment=NONE
    channel ORA_DISK_1: backup set complete, elapsed time: 00:00:01
    Finished backup at 27-AUG-13
    
    [root@xifenfei tmp]# ls -l /tmp/ForStandby_0*
    -rw-r----- 1 oracle oinstall 30097408 Aug 27 23:59 /tmp/ForStandby_04oicqqr_1_1
    -rw-r----- 1 oracle oinstall 10125312 Aug 27 23:59 /tmp/ForStandby_05oicqup_1_1
    

      [引用]  [回复]

  2. 小荷 说:

    11g中的rman命令,还无法让增量备份和section size一起使用,看来12c已经可以了。赞一个!

      [引用]  [回复]

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