問題描述:
Oracle自動備份腳本的實現。
錯誤提示1:
Message file RMAN.msb not found
Verify that Oracle_HOME is set properly
。。。。。。
錯誤原因:
自動執行的不能夠識別相應的命令,需要在自動備份腳本中顯式的聲明Oracle的環境變量。
錯誤提示2:
standard in must be a tty
。。。。。。
錯誤原因:
不能在cron使用su或者管道等操作,必須將su命令移動到相關的shell腳本中。
錯誤提示3:
Argument Value Description
-----------------------------------------------------------------------------
target quoted-string connect-string for target database
catalog quoted-string connect-string for recovery catalog
nocatalog none if specified, then no recovery catalog
cmdfile quoted-string name of input command file
log quoted-string name of output message log file
trace quoted-string name of output debugging message log file
append none if specified, log is opened in append mode
debug optional-args activate debugging
msgno none show RMAN-nnnn prefix for all messages
send quoted-string send a command to the media manager
pipe string building block for pipe names
timeout integer number of seconds to wait for pipe input
checksyntax none check the command file for syntax errors
-----------------------------------------------------------------------------
Both single and double quotes (' or ") are accepted for a quoted-string.
Quotes are not required unless the string contains embedded white-space.
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-00556: could not open CMDFILE "backup_ar.rcv"
。。。。。。
錯誤原因:
需要在cmdfile中指明絕對路徑,不能因為shell腳本調用的cmdfile是在同一個目錄下就可以直接使用文件名或者直接使用./
正確示例代碼:
1、#cron文件
0 12,18 * * * /home/Oracle/bak_sh/backup_ar.sh
#表示每天12,18點對數據庫歸檔日至進行全備份
2、入口shell文件,文件名:backup_ar.sh
export Oracle_HOME=/home/u01/app/Oracle/Oracle/product/10.2.0/db_1
export Oracle_SID=test
export LANG=en_US.UTF-8
/home/u01/app/Oracle/Oracle/product/10.2.0/db_1/bin/rman cmdfile = backup_ar.rcv
3、rman備份腳本
connect target /
connect catalog rman/rman@rman
run{
allocate channel d1 device type disk;
sql 'alter system archive log current';
backup archivelog all delete input
format '/opt/rmanback/full_%u_%p_%c.ac' filesperset = 3;
release channel d1;
}
解決方法:
1、兩種辦法
一是用root的crontab,*/2 * * * * a.sh --》su - Oracle -c a.sh
一是在a.sh裡加上Oracle的環境。
2、我們做的cron測試:
實例:
Vi /etc/cron.minly/new.sh
內容:
Su – Oracle –c “/home/Oracle/mginfo.sh”
Vi /home/Oracle/mginfo.sh
內容:
Exp mginfotech/mginfotech file=mginfotech.dmp log=mginfotech.log
Vi /etc/crontab
內容:
59 23 * * * root run-parts /etc/cron.minly
每晚23:59分鐘執行
cron中無法讀取環境變量
在shell中顯示地export環境變量
export Oracle_HOME=/opt/ora9/product/9.2
export Oracle_SID=Oracle
export NLS_LANG=xxxxx
然後再試