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1. -bash-3.00# su - ora10g ---切换到oracle用户

2. -bash-3.00$ export ORACLE_SID=+ASM ---配置连接asm实例的环境变量

3. -bash-3.00$ asmcmd ---进入asmcmd工具

ASMCMD> help ---查看asmcmd工具的相关指南说明

asmcmd [-p] [command] --加上-p选项会在asmcmd中显示当前目录

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.

commands: ---下为asmcmd工具的相关命令

--------

cd --切换目录（类似于solaris的cd）

du --查看目录已使用情况

find –查看一个命令的用法

help

ls --类似于solaris的ls

lsct --查看目前使用asm 实例的oracle实例（注：可能多个oracle实例共享一个asm实例，或者一个oracle实例对应一个asm实例）

lsdg --显示碰盘组的情况(asm实例，是由多个碰盘组构成，一个磁盘组下含1或从个磁盘)

mkalias

mkdir --构建一个目录

pwd --显示当前目录

rm --类似于solaris的rm

rmalias

-bash-3.00$ asmcmd -p

ASMCMD [+] > pwd --[+] 为当前目录

+

ASMCMD [+] > ls --可以看到目录有两个目录

ARCH/

DATA/

ASMCMD [+] > cd arch --切换目录

ASMCMD [+arch] > pwd

+arch

ASMCMD [+arch] > ls

ASM10G/

ASMCMD [+arch] > cd asm10g

ASMCMD [+arch/asm10g] > ls

ARCHIVELOG/

ASMCMD [+arch/asm10g] > cd archivelog

ASMCMD [+arch/asm10g/archivelog] > pwd

+arch/asm10g/archivelog

ASMCMD [+arch/asm10g/archivelog] > ls

2009_11_26/

ASMCMD [+arch/asm10g/archivelog] > cd 2009_11_26

ASMCMD [+arch/asm10g/archivelog/2009_11_26] > ls

thread_1_seq_7.260.703906467

thread_1_seq_8.259.703906519

ASMCMD [+arch/asm10g/archivelog/2009_11_26] > rm thread_1_seq_8.259.703906519

--删除一个归档日志

ASMCMD [+arch/asm10g/archivelog/2009_11_26] > ls --再次查看已经删除

thread_1_seq_7.260.703906467

ASMCMD [+arch/asm10g/archivelog/2009_11_26] > exit --退出asmcmd

4. -bash-3.00$ export ORACLE_SID=asm10g --连接oracle实例

--（注：asm实例和oracle实例的ORACLE_SID是不同的，请注意）

5. -bash-3.00$ rman target / --进入rman工具

Recovery Manager: Release 10.2.0.2.0 - Production on Thu Nov 26 01:50:33 2009

connected to target database: ASM10G (DBID=40435634)

RMAN> list archivelog all; --显示所有的归档日志

--请注意：涂蓝部分，可以看到在asmcmd中删除的归档日志也显示在这儿

using target database control file instead of recovery catalog

List of Archived Log Copies

Key Thrd Seq S Low Time Name

------- ---- ------- - --------- ----

2 1 2 X 26-NOV-09 +ARCH/asm10g/archivelog/2009_11_26/thread_1_seq_2.256.703906333

1 1 3 X 26-NOV-09 +ARCH/asm10g/archivelog/2009_11_26/thread_1_seq_3.257.703906335

3 1 4 X 26-NOV-09 +ARCH/asm10g/archivelog/2009_11_26/thread_1_seq_4.258.703906339

4 1 5 X 26-NOV-09 +ARCH/asm10g/archivelog/2009_11_26/thread_1_seq_5.259.703906347

5 1 6 X 26-NOV-09 +ARCH/asm10g/archivelog/2009_11_26/thread_1_seq_6.260.703906373

6 1 7 A 26-NOV-09 +ARCH/asm10g/archivelog/2009_11_26/thread_1_seq_7.260.703906467

7 1 8 A 26-NOV-09 +ARCH/asm10g/archivelog/2009_11_26/thread_1_seq_8.259.703906519

RMAN> crosscheck archivelog all;--更新rman中存储归档日志的信息

allocated channel: ORA_DISK_1

channel ORA_DISK_1: sid=138 devtype=DISK