linux上创建ASM实例

1.对磁盘进行分区

[root@dbserver1 ~]# fdisk –l

[root@dbserver1 ~]# fdisk /dev/sdd

 

Command (m for help): n

Command action

   e   extended

   p   primary partition (1-4)

p

Partition number (1-4): 1

First cylinder (1-512, default 1):

Using default value 1

Last cylinder or +size or +sizeM or +sizeK (1-512, default 512):

Using default value 512

 

Command (m for help): w

The partition table has been altered!

 

Calling ioctl() to re-read partition table.

Syncing disks.

[root@dbserver1 ~]# fdisk /dev/sdc

 

Command (m for help): n

Command action

   e   extended

   p   primary partition (1-4)

p

Partition number (1-4): 1

First cylinder (1-512, default 1):

Using default value 1

Last cylinder or +size or +sizeM or +sizeK (1-512, default 512):

Using default value 512

 

Command (m for help): w

The partition table has been altered!

 

Calling ioctl() to re-read partition table.

Syncing disks.

按同样的方法做sde,sdf,sdg

查看分区情况。

[root@dbserver1 asmlib]# fdisk -l

 

Disk /dev/sda: 21.4 GB, 21474836480 bytes

255 heads, 63 sectors/track, 2610 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

 

   Device Boot      Start         End      Blocks   Id  System

/dev/sda1   *           1          14      112423+  83  Linux

/dev/sda2              15         408     3164805   82  Linux swap

/dev/sda3             409        2610    17687565   8e  Linux LVM

 

Disk /dev/sdb: 536 MB, 536870912 bytes

64 heads, 32 sectors/track, 512 cylinders

Units = cylinders of 2048 * 512 = 1048576 bytes

 

Disk /dev/sdb doesn't contain a valid partition table

 

Disk /dev/sdc: 536 MB, 536870912 bytes

64 heads, 32 sectors/track, 512 cylinders

Units = cylinders of 2048 * 512 = 1048576 bytes

 

Disk /dev/sdc doesn't contain a valid partition table

 

Disk /dev/sdd: 3221 MB, 3221225472 bytes

255 heads, 63 sectors/track, 391 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

 

   Device Boot      Start         End      Blocks   Id  System

/dev/sdd1               1         391     3140676   83  Linux

 

Disk /dev/sde: 3221 MB, 3221225472 bytes

255 heads, 63 sectors/track, 391 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

 

   Device Boot      Start         End      Blocks   Id  System

/dev/sde1               1         391     3140676   83  Linux

 

Disk /dev/sdf: 3221 MB, 3221225472 bytes

255 heads, 63 sectors/track, 391 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

 

   Device Boot      Start         End      Blocks   Id  System

/dev/sdf1               1         391     3140676   83  Linux

 

Disk /dev/sdg: 3221 MB, 3221225472 bytes

255 heads, 63 sectors/track, 391 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

 

   Device Boot      Start         End      Blocks   Id  System

/dev/sdg1               1         391     3140676   83  Linux

2.安装ASMlib

A 下载相应的软件

http://www.oracle.com/technetwork/server-storage/linux/downloads/rhel4-092650.html

一直到最后，先找到Inter IA32(x86) Architecture

将上面两个软件下载后，再回到RAC1查看机器内核

[root@rac1 raw]# uname -rm

2.6.9-89.ELsmp i686

找到下面一栏

下载ELsmp的一个软件

B 分别在两个节点上安装这三个软件

 

[root@dbserver1 asmlib]# ls

oracleasm-2.6.9-89.ELsmp-2.0.5-1.el4.i686.rpm oracleasmlib-2.0.4-1.el4.i386.rpm  oracleasm-support-2.1.7-1.el4.i386.rpm

[root@dbserver1 asmlib]# rpm -ivh oracleasm-support-2.1.7-1.el4.i386.rpm

warning: oracleasm-support-2.1.7-1.el4.i386.rpm: V3 DSA signature: NOKEY, key ID b38a8516

Preparing...                ########################################### [100%]

   1:oracleasm-support      ########################################### [100%]

[root@dbserver1 asmlib]# rpm -ivh oracleasm-2.6.9-89.ELsmp-2.0.5-1.el4.i686.rpm

warning: oracleasm-2.6.9-89.ELsmp-2.0.5-1.el4.i686.rpm: V3 DSA signature: NOKEY, key ID b38a8516

Preparing...                ########################################### [100%]

   1:oracleasm-2.6.9-89.ELsm########################################### [100%]

[root@dbserver1 asmlib]# rpm -ivh oracleasmlib-2.0.4-1.el4.i386.rpm

warning: oracleasmlib-2.0.4-1.el4.i386.rpm: V3 DSA signature: NOKEY, key ID b38a8516

Preparing...                ########################################### [100%]

   1:oracleasmlib           ########################################### [100%]

[root@dbserver1 asmlib]#

C 配置驱动包

 

[root@dbserver1 ~]# /etc/init.d/oracleasm configure

Configuring the Oracle ASM library driver.

 

This will configure the on-boot properties of the Oracle ASM library

driver.  The following questions will determine whether the driver is

loaded on boot and what permissions it will have.  The current values

will be shown in brackets ('[]').  Hitting <ENTER> without typing an

answer will keep that current value.  Ctrl-C will abort.

 

Default user to own the driver interface []: oracle

Default group to own the driver interface []: dba

Start Oracle ASM library driver on boot (y/n) [n]: y

Scan for Oracle ASM disks on boot (y/n) [y]: y

Writing Oracle ASM library driver configuration: done

Initializing the Oracle ASMLib driver: [  OK  ]

Scanning the system for Oracle ASMLib disks: [  OK  ]

D 检查是否加载

 

[root@dbserver1 ~]# df -ha

Filesystem            Size  Used Avail Use% Mounted on

/dev/mapper/VolGroup00-LogVol00

                       17G   16G     0 100% /

none                     0     0     0   -  /proc

none                     0     0     0   -  /sys

none                     0     0     0   -  /dev/pts

/dev/sda1             107M   14M   88M  13% /boot

none                 1014M     0 1014M   0% /dev/shm

none                     0     0     0   -  /proc/sys/fs/binfmt_misc

sunrpc                   0     0     0   -  /var/lib/nfs/rpc_pipefs

/dev/hdc              2.3G  2.3G     0 100% /media/cdrom

oracleasmfs              0     0     0   -  /dev/oracleasm

[root@dbserver1 ~]#

 

[root@dbserver1 ~]# /etc/init.d/oracleasm createdisk VOL1 /dev/sdd1

Marking disk "VOL1" as an ASM disk: [  OK  ]

[root@dbserver1 ~]# /etc/init.d/oracleasm createdisk VOL2 /dev/sde1

Marking disk "VOL2" as an ASM disk: [  OK  ]

[root@dbserver1 ~]# /etc/init.d/oracleasm createdisk VOL3 /dev/sdf1

Marking disk "VOL3" as an ASM disk: [  OK  ]

[root@dbserver1 ~]# /etc/init.d/oracleasm createdisk VOL4 /dev/sdg1

Marking disk "VOL4" as an ASM disk: [  OK  ]

[root@dbserver1 ~]# cd /dev/oracleasm/disks/

[root@dbserver1 disks]# ll

total 0

brw-rw----  1 oracle dba 8, 49 Apr 30 06:37 VOL1

brw-rw----  1 oracle dba 8, 65 Apr 30 06:37 VOL2

brw-rw----  1 oracle dba 8, 81 Apr 30 06:37 VOL3

brw-rw----  1 oracle dba 8, 97 Apr 30 06:38 VOL4

[root@dbserver1 disks]#

3.创建ASM实例

 

利用DBCA创建就可以了。