本例是基于ASMLib创建, 也可以基于裸设备创建.1.安装asm所需要的支持包
A.在Oracle网站下载支持包:这里
B.根据linux内核下载相应的asm安装包:
oracleasm-2.6.18-8.el5-2.0.4-1.el5.i686.rpm
oracleasm-2.6.18-8.el5PAE-2.0.4-1.el5.i686.rpm
oracleasm-2.6.18-8.el5xen-2.0.4-1.el5.i686.rpm
oracleasmlib-2.0.3-1.el5.i386.rpm
oracleasm-support-2.0.4-1.el5.i386.rpm
C.安装 rpm -Uvh .......... --nodeps
1.1 安装ASMLib
# cd /orahome/wangnc/asmlib# rpm -Uvh oracleasm-support-2.1.3-1.el4.i386.rpm oracleasm-2.6.9-55.ELsmp-2.0.3-1.i686.rpm oracleasmlib-2.0.4-1.el4.i386.rpm
1.2 配置ASMLib
# /etc/init.d/oracleasm configure...Default user to own the driver interface []: oracleDefault group to own the driver interface []: dbaStart Oracle ASM library driver on boot (y/n) [n]: yScan for Oracle ASM disks on boot (y/n) [y]: y...# df -ha | grep oracleasmoracleasmfs 0 0 0 - /dev/oracleasm 附启用或禁用oracleasm自动启动方法:# /etc/init.d/oracleasm disable# /etc/init.d/oracleasm enable
1.3 物理磁盘分区
对用来做ASM 的硬盘要进行分区(只分一个区, 此处采用硬盘sdb):# fdisk -l | grep Disk Disk /dev/sda: 250.0 GB, 250059350016 bytesDisk /dev/sdb: 250.0 GB, 250059350016 bytes # fdisk /dev/sdbCommand (m for help): npPartition number (1-4): 1First cylinder (1-30401, default 1): <enter>Last cylinder or +size or +sizeM or +sizeK (1-30401, default 30401): <enter>Command (m for help): w # fdisk -l /dev/sdbDisk /dev/sdb: 250.0 GB, 250059350016 bytes255 heads, 63 sectors/track, 30401 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System/dev/sdb1 1 30401 244196001 83 Linux
1.4 创建ASM磁盘
这些磁盘是不包含任何内容的空磁盘, 创建时物理磁盘要带分区号如sdb1. ASM磁盘名可以为大写字母,数字和下划线, 且以字母开始:# /etc/init.d/oracleasm createdisk VOL1 /dev/sdb1Marking disk "VOL1" as an ASM disk: [ OK ] 如果提示Failed, 可以跟踪日志:# tail -f /var/log/oracleasm 附删除磁盘语句:# /etc/init.d/oracleasm deletedisk VOL1 检查配置情况:# /etc/init.d/oracleasm querydisk VOL1 # /etc/init.d/oracleasm querydisk /dev/sdb1# /etc/init.d/oracleasm listdisks# ls -l /dev/oracleasm/disks/*# /etc/init.d/oracleasm status
1.5 建初始化参数文件
注意asm_diskstring必需配置成"ORCL:"开头.# su - oracle$ export ORACLE_SID=+ASM$ vi $ORACLE_HOME/dbs/init$ORACLE_SID.oraasm_diskstring="ORCL:VOL*"background_dump_dest="/u01/app/oracle/admin/+ASM/bdump"core_dump_dest="/u01/app/oracle/admin/+ASM/cdump"user_dump_dest="/u01/app/oracle/admin/+ASM/udump"instance_type="asm"large_pool_size=12Mremote_login_passwordfile="SHARED"
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