Oracle 日常RMAN備份指令碼，很基礎。但是對於多個需要備份的Oracle資料庫，可以很簡單實施，並利於後期批量狀態的查詢。

1. 備份指令碼，基於linux，windows環境需要適當修改。
   主指令碼，會呼叫2,3步驟的rman.sql&status.sql

   $ more main.sh
   #set env
   #########################Change the below parameter for the different server##################
   export host_ip=172.16.32.115
   export instance_name=liang
   export username=liang
   export password=liang
   export syspsw=oracle
   export backup_home=/home/oracle/bk
   export ORACLE_HOME=/home/oracle/app/oracle/product/11.2.0/dbhome_1
   export PATH=$PATH:$ORACLE_HOME/db_1/bin:/sbin:/usr/sbin
   #####################################################################################
   export curTime=$(date "+%Y%m%d")
   mkdir $backup_home/ftp/$curTime
   echo "-----------------------------RMAN start-----------------------------";date
   #backup start
   cd $backup_home
   $ORACLE_HOME/bin/rman target sys/
    
   [email protected]$host_ip:1521/$instance_name cmdfile='rman.sql'
   echo "------------------------------RMAN End------------------------------";date
   sleep 10
   echo "------------------------------SQL Start------------------------------";date
   $ORACLE_HOME/bin/sqlplus $username/[email protected]$host_ip:1521/$instance_name @status.sql
   echo "------------------------------END-----------------------------";date
    
   

2. RMAN備份sql指令碼

   [[email protected] bk]$ more rman.sql
   run
   {
   ALLOCATE CHANNEL node_c1 DEVICE TYPE DISK MAXPIECESIZE=5G;
   ALLOCATE CHANNEL node_c2 DEVICE TYPE DISK MAXPIECESIZE=5G;
   backup as compressed backupset database format 'C:\ftp\uploadfile\db_%U.bak_%T';
   sql 'alter system switch logfile';
   CROSSCHECK ARCHIVELOG ALL;
   backup as compressed backupset archivelog all format 'C:\ftp\uploadfile\archivelog_%d_%s_%p_%T' not backed up 2 times;
   backup spfile format 'C:\ftp\uploadfile\spfile_%U_%T';
   backup current controlfile format 'C:\ftp\uploadfile\controlfile_%d_%s_%p_%I_%u_%T';
   sql 'alter system switch logfile';
   CROSSCHECK BACKUP;
   CROSSCHECK COPY;
   delete noprompt archivelog all completed before 'sysdate-7';
   release channel node_c1;
   release channel node_c2;
   }
    
   

3. 查詢備份狀態的指令碼,並將查詢資訊列印到日誌，方便查詢。

   $ more status.sql
   ----每日歸檔產生量,可以判斷資料庫是否繁忙
   spool $backup_home/redo_switch.log;
   set echo off
   set feedback off
   set colsep ','
   set pagesize 2000
   set term off
   set heading off
   set line 400
   col Count for 9999
   col GB for 99999
   select
   d.dbid,
   to_char(trunc(completion_time),'yyyy-mm-dd') as "Date"
   ,count(*) as "Count"
   ,substr((sum(blocks*block_size))/1024/1024/1024,0,4) as "GB"
   from v$archived_log,v$database d
   group by trunc(completion_time),d.dbid;
   spool off;
   ---查詢表空間使用率
   spool $backup_home/tablepace_usage.log;
   set echo off
   set feedback off
   set colsep ','
   set pagesize 2000
   set term off
   set heading off
   set line 400
   col startup_time for a20
   col status for a6
   col tablespace_name for a20
   col total_mb for 99999999
   col used_mb for 99999999
   col used_pct for a10
   select
   d.dbid,
   to_char(b.STARTUP_TIME,'yyyy-mm-dd-hh24-mi-ss') as startup_time,
   b.status,
   total.tablespace_name,
   round(total.MB, 2) as Total_MB,
   round(total.MB - free.MB, 2) as Used_MB,
   round((1 - free.MB / total.MB) * 100, 2) || '%' as Used_Pct
   from (select tablespace_name, sum(bytes) / 1024 / 1024 as MB
   from dba_free_space
   group by tablespace_name) free,
   (select tablespace_name, sum(bytes) / 1024 / 1024 as MB
   from dba_data_files
   group by tablespace_name) total, v$instance b, v$database d
   where free.tablespace_name = total.tablespace_name;
   spool off;
   --- 檢視近7天備份情況
   spool /home/oracle/bk/log/rman.log;
   set echo off
   set feedback off
   set colsep ','
   set pagesize 2000
   set term off
   set heading off
   set line 202000
   col DBID for 9999999999
   col status for a25
   col type for a12
   col  start_time for a22
   col  Finish_time for a22
   col in_sec for a12
   col out_sec for a12
   col command for a8
   col  INPUT_M for 99999
   col  OUTPUT_M for 99999
   col obj_type for a15
   select d.DBID as DBID,
   s.status as status,
   b.INPUT_TYPE as type,
   to_char(b.START_TIME,'yyyy-mm-dd hh24:mi:ss') as start_time,
   to_char(b.end_time, 'yyyy-mm-dd hh24:mi:ss') as  Finish_time,
   b.INPUT_BYTES_PER_SEC_DISPLAY in_sec,
   b.OUTPUT_BYTES_PER_SEC_DISPLAY out_sec,
   s.OPERATION as command,
   trunc(s.INPUT_BYTES/1024/1024,2) as INPUT_M,
   trunc(s.OUTPUT_BYTES/1024/1024,2) as OUTPUT_M,
   s.OBJECT_TYPE as obj_type
   from v$rman_status s,v$rman_backup_job_details b, v$database d
   where to_char(s.START_TIME, 'yyyy-mm-dd hh24:mi:ss') < to_char(sysdate,'yyyy-mm-dd hh24:mi:ss')
   and to_char(s.END_TIME, 'yyyy-mm-dd hh24:mi:ss') > to_char(sysdate-7,'yyyy-mm-dd hh24:mi:ss')
   and s.COMMAND_ID=b.COMMAND_ID
   order by s.START_TIME desc ;
   spool off;
   exit;