创建ASM With Oracle 10g-cuug520
由于后文会相关的演示操作会用到ASM实例，因此在文章的开始就先创建一个简单的ASM实例，后面再开始详细的介绍ASM。cuug每周五晚8点都有免费网络课程，详情可点击http://www.51CTO提醒您，请勿滥发广告!.cn
下面是创建一个ASM Instance的具体操作过程：
创建ASM实例的相关目录
$ mkdir -p $ORACLE_BASE/admin/+ASM/bdump
$ mkdir -p $ORACLE_BASE/admin/+ASM/cdump
$ mkdir -p $ORACLE_BASE/admin/+ASM/hdump
$ mkdir -p $ORACLE_BASE/admin/+ASM/pfile
$ mkdir -p $ORACLE_BASE/admin/+ASM/udump
准备pfile的初始化参数
$ vi /tmp/init+ASM.ora
INSTANCE_TYPE=ASM
"/tmp/init+ASM.ora"6L, 225C 已写入
$ cat /tmp/init+ASM.ora
INSTANCE_TYPE=ASM
*.instance_name='+ASM'
*.asm_diskstring='/dev/raw/raw*'
background_dump_dest=/u01/oracle/10g/admin/+ASM/bdump
core_dump_dest=/u01/oracle/10g/admin/+ASM/cdump
user_dump_dest=/u01/oracle/10g/admin/+ASM/udump
启动ASM实例
$ export ORACLE_SID=+ASM
$ sqlplus "/as sysdba"
SQL*Plus:Release 10.2.0.5.0 - Production on Sat Feb 23 15:20:17 2013
Copyright(c) 1982, 2010, Oracle.All RightsReserved.
Connectedto an> SQL>startup pfile='/tmp/init+ASM.ora'
ASMinstance started
TotalSystem Global Area125829120 bytes
FixedSize 2094512 bytes
VariableSize 98568784 bytes
ASMCache 25165824 bytes
ORA-15110:no diskgroups mounted
创建spfile
SQL>create spfile from pfile;
createspfile from pfile
*
ERROR atline 1:
ORA-01078:failure in processing system parameters
LRM-00109:could not open parameter file
'/u01/oracle/10g/product/10.2.0/db_1/dbs/init+ASM.ora'
SQL>create spfile from pfile='/tmp/init+ASM.ora';
Filecreated.
查看实例信息
SQL>select instance_name,host_name,version,database_status from v$instance;
INSTAHOST_NAM VERSION DATABASE
------------- ---------- --------
+ASMgtser110.2.0.5.0 ACTIVE
查看磁盘信息
GROUP_NUMBERDISK_NUMBER NAMEHEADER_STATUS FAILGROUP CREATE_DATE PATH
----------------------- ----- ------------------------ --------- ----------------------------
0 0 CANDIDATE /dev/raw/raw4
0 1 CANDIDATE /dev/raw/raw2
0 2 CANDIDATE /dev/raw/raw3
0 0 CANDIDATE /dev/raw/raw1
查看磁盘组信息
SQL>select group_number,name,state,type,total_mb,free_mb from v$asm_diskgroup orderby 1,2;
no rowsselected
SQL>exit
Disconnectedfrom Oracle Database 10g Enterprise Edition> With thePartitioning, OLAP, Data Mining and Real Application Testing options
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