使用 ASMCMD 工具管理ASM目录及文件
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--?使用ASMCMD?工具管理ASM目錄及文件
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????在ASM實例中，所有的存儲于ASM磁盤組中的文件對于操作系統命令而言是不可訪問的，因此也無法使用常規的命令來操縱ASM磁盤中的文
件。所幸的是，我們有ASMCMD工具來代替操作系統命令來完成這部分工作。ASMCMD工具提供了類似于操作系統的常用命令，如ls?,?du?,find
,cd?,rm?,mkdir等等。借助這些工具可以更輕松的完成ASM實例的相關管理工作。
????有關ASM的相關參考：
???????創建ASM實例及ASM數據庫
????????ASM?磁盤、目錄的管理
?
1.ASMCMD文件所在的位置
????[root@oradb ~]# su?-?oracle
????[oracle@oradb ~]$ which asmcmd
????/u01/oracle/10g/bin/asmcmd
?
2.啟動ASMCMD
????[oracle@oradb ~]$ export ORACLE_SID=+ASM????--啟動前要設定ORACLE_SID環境變量
????[oracle@oradb ~]$ asmcmd
????ASMCMD>?help
???????????asmcmd [-p] [command]????????--該方式可以直接完成相應的功能而不需要進入到ASMCMD提示符下
?
???????????The environment variables ORACLE_HOME?and?ORACLE_SID determine the
???????????instance?to?which the program connects,?and?ASMCMD establishes a
???????????bequeath connection?to?it,?in?the same manner?as?a SQLPLUS?/?AS
???????????SYSDBA.??The?user?must be a member?of?the SYSDBA?group.
?
???????????Specifying the?-p?option?allows the?current?directory?to?be displayed
???????????in?the command prompt,?like?so:
?
???????????ASMCMD [+DATAFILE/ORCL/CONTROLFILE]?>
?
???????????[command] specifies one?of?the following commands,?along?with?its
???????????parameters.
?
???????????Type?"help [command]"?to?get?help?on?a specific ASMCMD command.
??????????????????????????????????????--在asmcmd命令提示符下，輸入help [命令]?，則顯示該命令幫助信息
???????????commands:
???????????--------
???????????cd
???????????du
???????????find
???????????help
???????????ls
???????????lsct
???????????lsdg
???????????mkalias
???????????mkdir
???????????pwd
???????????rm
???????????rmalias
?
3.具體用法?????
????[oracle@oradb ~]$ asmcmd?-p ls?-l???????--無需進入到ASMCMD命令提示符下完成相應的功能
????State????Type????Rebal??Unbal??Name
????MOUNTED??NORMAL??N??????N??????DG1/
????MOUNTED??NORMAL??N??????N??????DG2/
????MOUNTED??EXTERN??N??????N??????REV/
???
????ASMCMD>?ls?-l?????????????????????????--查看磁盤組的基本信息
????State????Type????Rebal??Unbal??Name
????MOUNTED??NORMAL??N??????N??????DG1/
????MOUNTED??NORMAL??N??????N??????DG2/
????MOUNTED??EXTERN??N??????N??????REV/
???
????ASMCMD>?ls?-s?????????????????????????--查看磁盤組的詳細信息，如磁盤大小，可用空間，扇區大小等
????Sector??Block???????AU??Total_MB??Free_MB??Req_mir_free_MB??Usable_file_MB??Offline_disks??Name
???????512???4096??1048576??????3058?????1498????????????????0?????????????749??????????????0??DG1/
???????512???4096??1048576???????200???????98????????????????0??????????????49??????????????0??DG2/
???????512???4096??1048576??????3074?????2949????????????????0????????????2949??????????????0??REV/
??????
????ASMCMD>?du????????????????????????????--查看當前目錄磁盤已使用的容量
????Used_MB??????Mirror_used_MB
???????804????????????????1541
??????
????ASMCMD>?pwd???????????????????????????--顯示當前路徑
????+
????ASMCMD>?cd?+DG1
????ASMCMD>?pwd
????+DG1
????ASMCMD>?du
????Used_MB??????Mirror_used_MB
???????732????????????????1469??
??????
????ASMCMD>?find?-t datafile?+DG1/asmdb sys*????--find?用于查找對象
????+DG1/asmdb/DATAFILE/SYSAUX.261.734885459
????+DG1/asmdb/DATAFILE/SYSTEM.259.734885389
?
????ASMCMD>?ls?-l?+DG1/asmdb
????Type???????????Redund??Striped??Time?????????????Sys??Name
???????????????????????????????????????????????Y????CONTROLFILE/
???????????????????????????????????????????????Y????DATAFILE/
???????????????????????????????????????????????Y????ONLINELOG/
???????????????????????????????????????????????Y????PARAMETERFILE/
???????????????????????????????????????????????Y????TEMPFILE/
???????????????????????????????????????????????N????spfileasmdb.ora?=>?+DG1/ASMDB/PARAMETERFILE/spfile.264.734886407
?
????ASMCMD>?ls?-l?+DG1/asmdb/spfi*
????Type???????????Redund??Striped??Time?????????????Sys??Name
???????????????????????????????????????????????N????spfileasmdb.ora?=>?+DG1/ASMDB/PARAMETERFILE/spfile.264.734886407
?
????ASMCMD>?pwd
????+DG1
???
????ASMCMD>?cd asmdb????????--cd?命令改變當前目錄
????ASMCMD>?pwd
????+DG1/asmdb
???
????ASMCMD>?ls
????CONTROLFILE/
????DATAFILE/
????ONLINELOG/
????PARAMETERFILE/
????TEMPFILE/
????spfileasmdb.ora
?
????ASMCMD>?lsdg
????State????Type????Rebal??Unbal??Sector??Block???????AU??Total_MB??Free_MB??Req_mir_free_MB??Usable_file_MB?Offline_disks??Name
????MOUNTED??NORMAL??N??????N?????????512???4096??1048576??????3058?????1498????????????????0?????????????749????????????0??DG1/
????MOUNTED??NORMAL??N??????N?????????512???4096??1048576???????200???????98????????????????0?????????????49??????????????0??DG2/
????MOUNTED??EXTERN??N??????N?????????512???4096??1048576??????3074?????2949????????????????0????????????2949????????????0??REV/
?
????ASMCMD>?mkdir?+DG2/asmdb/bakfile???????--mkdir?創建目錄
????ASMCMD>?ls?-l?+DG2/asmdb/bakfile
????ASMCMD>?rm?+DG2/asmdb/bakfile??????????--rm?刪除目錄
????ASMCMD>?ls?-l?+DG2/asmdb/bakfile
????asmcmd:?entry?'bakfile'?does?not?exist?in?directory?'+DG2/asmdb/'??????????????????????????
?
????ASMCMD>?exit???????????????????????????????--退出asmcmd命令行
?
4.從上面的描述可以看出ASMCMD工具給我們提供了很多方便，這些操作命令基本上與Liunx，Unix命令相似，通過這些操作命令可以大大簡化對
????ASM實例的管理。
?轉：http://blog.csdn.net/leshami/article/details/6134163
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