安装oracleASM

问题：oracleasm status不能启动

解决方案：

[root@localhost ~]# oracleasm status
Checking if ASM is loaded: no
Checking if /dev/oracleasm is mounted: no
[root@localhost ~]# oracleasm exit
[root@localhost ~]# oracleasm init
Creating /dev/oracleasm mount point: /dev/oracleasm
Loading module "oracleasm": oracleasm
Mounting ASMlib driver filesystem: /dev/oracleasm
[root@localhost ~]# oracleasm status
Checking if ASM is loaded: yes
Checking if /dev/oracleasm is mounted: yes

一。手工搞定安装

1. 检查是否已安装及系统内核

--查看内核

[root@xclrac1 /]# uname -rm

2.6.39-400.17.1.el6uek.x86_64 x86_6

--查看asm包

[root@xclrac1 /]# rpm -qa|grep asm

libatasmart-0.17-4.el6_2.x86_64

[root@xclrac1 /]#

[root@xclrac1 db2]# cat /proc/version

Linux version 2.6.39-400.17.1.el6uek.x86_64 (mockbuild@ca-build44.us.oracle.com) (gcc version 4.4.7 20120313 (Red Hat 4.4.7-3) (GCC) ) #1 SMP Fri Feb 22 18:16:18 PST 2013

[root@xclrac1 ~]# cat /etc/issue

Oracle Linux Server release 6.4

Kernel on an m

2. 去官网找到相应系统对应的asm下载安装.

以前Oracle Linux 5 如下:

--安装ASM, support->asm-> lib放最后

rpm -Uvh oracleasm-support-2.1.7-1.el5.x86_64.rpm

rpm -Uvh oracleasm-2.6.18-194.el5-2.0.5-1.el5.x86_64.rpm

rpm -Uvh oracleasmlib-2.0.4-1.el5.x86_64.rpm

现在Oracle 6.4就不需这么麻烦:

2.1 去系统光盘找到asmlib support的安装包(rpm -Uvh oracleasm-support-2.1.8-1.el6.x86_64.rpm)装上

2.2 去Oracle官网，下载Oracle Linux 6 对应的asmlib.rpm包并装上

2.3 重新查看

[root@xclrac1 db2]# rpm -qa|grep asm

oracleasmlib-2.0.4-1.el6.x86_64

libatasmart-0.17-4.el6_2.x86_64

3. 安装成功后，通过 oracleasm命令检查并管理asmlib

[root@xclrac1 /]# oracleasm status

Checking if ASM is loaded: yes

Checking if /dev/oracleasm is mounted: yes

[root@xclrac1 ~]# oracleasm update-driver

二。yum快速搞定安装

http://www.oracle.com/technetwork/server-storage/linux/uln-095759.html

Getting Oracle ASMLib via the Unbreakable Linux Network

Installing ASMLib via ULN

Now that the system is registered with ULN, it can install the software. Log in as root and run:

# yum install oracleasm-support oracleasmlib oracleasm-`uname -r`

On Oracle Linux 5 and older, run the following command instead:

# up2date -i oracleasm-support oracleasmlib oracleasm-`uname -r`

This will install the support tools, the library, and the kernel driver for the currently running kernel.

Note: If you are running the Unbreakable kernel, the ASMLib kernel driver is included in that kernel package, and the oracleasm-`uname -r` package should not be specified.

安装成功后。就可以.配置和管理asm 磁盘了。

1. 我在这创建5个磁盘

cd C:Program FilesOracleVirtualBox

VBoxManage.exe createhd -filename D:OracleVMASMasm1.vdi -size 5120 -format VDI -variant Fixed

VBoxManage.exe createhd -filename D:OracleVMASMasm2.vdi -size 5120 -format VDI -variant Fixed

VBoxManage.exe createhd -filename D:OracleVMASMasm3.vdi -size 5120 -format VDI -variant Fixed

VBoxManage.exe createhd -filename D:OracleVMASMasm4.vdi -size 5120 -format VDI -variant Fixed

VBoxManage.exe createhd -filename D:OracleVMASMasm5.vdi -size 5120 -format VDI -variant Fixed

2. 在Oracle VM中附加进去。这个VM也可以用命令，但不太好使。

Settings -> Storage->Controller:SATA ->Add Hard Disk

3. 更改成共享模式

VBoxManage.exe modifyhd D:OracleVMASMasm1.vdi --type shareable

VBoxManage.exe modifyhd D:OracleVMASMasm2.vdi --type shareable

VBoxManage.exe modifyhd D:OracleVMASMasm3.vdi --type shareable

VBoxManage.exe modifyhd D:OracleVMASMasm4.vdi --type shareable

VBoxManage.exe modifyhd D:OracleVMASMasm5.vdi --type shareable

4. 检查下状态

a. VBoxManage list vms

b. 进入linux系统

[root@rac1 dev]# ls sd*

sda sda1 sda2 sdb sdc sdd sde sdf

//其中 sdb sdc sdd sde sdf 就是挂上的那5个盘

5. 来fdisk 磁盘。

依次: fdisk sdb fdisk sdc fdisk sdd fdisk sde fdisk sdf

附了个例子:

[root@rac1 dev]# fdisk sdb

Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel

Building a new DOS disklabel with disk identifier 0x1f132726.

Changes will remain in memory only, until you decide to write them.

After that, of course, the previous content won't be recoverable.

Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)

WARNING: DOS-compatible mode is deprecated. It's strongly recommended to

switch off the mode (command 'c') and change display units to

sectors (command 'u').

Command (m for help): p

Disk sdb: 5368 MB, 5368709120 bytes

255 heads, 63 sectors/track, 652 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk identifier: 0x1f132726

Device Boot Start End Blocks Id System

Command (m for help): n

Command action

e extended

p primary partition (1-4)

Partition number (1-4): 1

First cylinder (1-652, default 1):

Using default value 1

Last cylinder, +cylinders or +size{K,M,G} (1-652, default 652):

Using default value 652

Command (m for help): p

Disk sdb: 5368 MB, 5368709120 bytes

255 heads, 63 sectors/track, 652 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk identifier: 0x1f132726

Device Boot Start End Blocks Id System

sdb1 1 652 5237158+ 83 Linux

Command (m for help): w

The partition table has been altered!

Calling ioctl() to re-read partition table.

Syncing disks.

[root@rac1 dev]# ls sd*

sda sda1 sda2 sdb sdb1 sdc sdd sde sdf

最后的结果:

[root@rac1 dev]# ls sd*

sda sda1 sda2 sdb sdb1 sdc sdc1 sdd sdd1 sde sde1 sdf sdf1

6. 依次创建asm磁盘

[root@xclrac1 ~]# oracleasm createdisk DISK1 /dev/sdb1

Writing disk header: done

Instantiating disk: done

[root@xclrac1 ~]# oracleasm createdisk DISK2 /dev/sdc1

Writing disk header: done

Instantiating disk: done

[root@xclrac1 ~]# oracleasm createdisk DISK3 /dev/sdd1

Writing disk header: done

Instantiating disk: done

[root@xclrac1 ~]# oracleasm createdisk DISK4 /dev/sde1

Writing disk header: done

Instantiating disk: done

[root@xclrac1 ~]# oracleasm createdisk DISK5 /dev/sdf1

Writing disk header: done

Instantiating disk: done

7. 检查下效果

[root@xclrac1 ~]# oracleasm listdisks

DISK1

DISK2

DISK3

DISK4

DISK5

8. 让oracleasm把磁盘给找出来

[root@xclrac1 ~]# oracleasm scandisks

Reloading disk partitions: done

Cleaning any stale ASM disks...

Scanning system for ASM disks...

9.配置asm 磁盘的管理用户

[root@xclrac1 Packages]# oracleasm configure -i

Configuring the Oracle ASM library driver.

Default user to own the driver interface []: oracle

Default group to own the driver interface []: dba

[root@xclrac1 Packages]# oracleasm configure

ORACLEASM_ENABLED=true

ORACLEASM_UID=oracle

ORACLEASM_GID=dba

ORACLEASM_SCANBOOT=true

ORACLEASM_SCANORDER=""

ORACLEASM_SCANEXCLUDE=""

ORACLEASM_USE_LOGICAL_BLOCK_SIZE="false"

至此，这个Linux的asm就挂载成功了。剩下的工作就是把这个OS再Clone一下。然后你就会发现。这些磁盘都能被两个OS找到并使用了。

就可以放心装RAC了。

C:Program FilesOracleVirtualBox>VBoxManage.exe clonehd D:OracleVMOLE_RAC1O
LE_RAC1.vdi D:OracleVMOLE_RAC2OLE_RAC2.vdi
0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100%
Clone hard disk created in format 'VDI'. UUID: c7f39d05-98b8-426f-8897-16a8e39ea
34f