VirtualBox 安装oracle10g rac集群（二） 配置虚拟硬盘

关闭虚拟机，开始配置ASM磁盘
配置ASM磁盘

VBoxManage createhd --filename H:\rac\sharestorage\asm1.vdi --size 5120 --format VDI --variant Fixed

VBoxManage createhd --filename H:\rac\sharestorage\asm2.vdi --size 5120 --format VDI --variant Fixed

 

VBoxManage createhd --filename H:\rac\sharestorage\asm3.vdi --size 5120 --format VDI --variant Fixed

 

VBoxManage createhd --filename H:\rac\sharestorage\asm4.vdi --size 5120 --format VDI --variant Fixed

 

VBoxManage createhd --filename H:\rac\sharestorage\asm5.vdi --size 5120 --format VDI --variant Fixed

把磁盘关联到虚拟机上         这里控制器是SATA  有些是SATA控制器   有些是SATA control  按照不同的版本来就可以

VBoxManage storageattach rac1 --storagectl "SATA" --port 1 --device 0 --type hdd --medium H:\rac\sharestorage\asm1.vdi --mtype shareable

 

VBoxManage storageattach rac1 --storagectl "SATA" --port 2 --device 0 --type hdd --medium H:\rac\sharestorage\asm2.vdi --mtype shareable

VBoxManage storageattach rac1 --storagectl "SATA" --port 3 --device 0 --type hdd --medium H:\rac\sharestorage\asm3.vdi --mtype shareable

 

VBoxManage storageattach rac1 --storagectl "SATA" --port 4 --device 0 --type hdd --medium H:\rac\sharestorage\asm4.vdi --mtype shareable

 

VBoxManage storageattach rac1 --storagectl "SATA" --port 5 --device 0 --type hdd --medium H:\rac\sharestorage\asm5.vdi --mtype shareable

设置ASM磁盘共享

VBoxManage modifyhd H:\rac\sharestorage\asm1.vdi --type shareable

 

VBoxManage modifyhd H:\rac\sharestorage\asm2.vdi --type shareable

 

VBoxManage modifyhd H:\rac\sharestorage\asm3.vdi --type shareable

 

VBoxManage modifyhd H:\rac\sharestorage\asm4.vdi --type shareable

 

VBoxManage modifyhd H:\rac\sharestorage\asm5.vdi --type shareable

 

对磁盘分区

[root@rac1 dev]# ls sd*

sda  sda1  sda2  sdb  sdc  sdd  sde  sdf

[root@rac1 dev]# fdisk /dev/sdb

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

Building a new DOS disklabel. 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)

 

Command (m for help): n

Command action

   e   extended

   p   primary partition (1-4)

p

Partition number (1-4): 1

First cylinder (1-652, default 1):

Using default value 1

Last cylinder or +size or +sizeM or +sizeK (1-652, default 652):

Using default value 652

 

Command (m for help): w

The partition table has been altered!

 

Calling ioctl() to re-read partition table.

Syncing disks.

依次对其余四个盘进行分区

安装ASM需要的包

oracleasm-2.6.18-164.el5-2.0.5-1.el5.x86_64.rpm

oracleasmlib-2.0.4-1.el5.i386.rpm

oracleasm-support-2.1.8-1.el5.i386.rpm

这里安装的这三个包由于依赖关系，安装顺序要按照下面的这样才可以
rpm -ivh oracleasm-support-2.1.8-1.el5.i386.rpm
rpm -ivh oracleasm-2.6.18-164.el5-2.0.5-1.el5.x86_64.rpm
rpm -ivh oracleasmlib-2.0.4-1.el5.i386.rpm

检查系统内核，安装对应的ASM包，就是之前下的那三个，cd到对应文件夹后rpm -Uvh oracleasm*.rpm就可以了。之后执行命令及输入输出如下：

[root@rac1 ~]# cd /dev/

[root@rac1 dev]# ls sd*

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

[root@rac1 dev]# oracleasm configure -i

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 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]:

Writing Oracle ASM library driver configuration: done

把硬盘加载到ASM，命令及输出如下：

[root@rac1 dev]# /usr/sbin/oracleasm init

Creating /dev/oracleasm mount point: /dev/oracleasm

Loading module "oracleasm": oracleasm

Mounting ASMlib driver filesystem: /dev/oracleasm

[root@rac1 dev]# cd

[root@rac1 ~]# /usr/sbin/oracleasm createdisk DISK1 /dev/sdb1

Writing disk header: done

Instantiating disk: done

[root@rac1 ~]# /usr/sbin/oracleasm createdisk DISK2 /dev/sdb1

Device "/dev/sdb1" is already labeled for ASM disk "DISK1"

[root@rac1 ~]# /usr/sbin/oracleasm createdisk DISK2 /dev/sdc1

Writing disk header: done

Instantiating disk: done

[root@rac1 ~]# /usr/sbin/oracleasm createdisk DISK3 /dev/sdd1

Writing disk header: done

Instantiating disk: done

[root@rac1 ~]# /usr/sbin/oracleasm createdisk DISK4 /dev/sde1

Writing disk header: done

Instantiating disk: done

[root@rac1 ~]# /usr/sbin/oracleasm createdisk DISK5 /dev/sdf1

Writing disk header: done

Instantiating disk: done

    之后执行命令及输出如下：

[root@rac1 ~]# /usr/sbin/oracleasm scandisks

Reloading disk partitions: done

Cleaning any stale ASM disks...

Scanning system for ASM disks...

[root@rac1 ~]# /usr/sbin/oracleasm listdisks

DISK1

DISK2

DISK3

DISK4

DISK5

[root@rac1 ~]#

 

Edit the "/etc/sysconfig/rawdevices" file, adding the following lines.

/dev/raw/raw1 /dev/sdb1

/dev/raw/raw2 /dev/sdc1

/dev/raw/raw3 /dev/sdd1

/dev/raw/raw4 /dev/sde1

/dev/raw/raw5 /dev/sdf1

Restart the rawdevices service using the following command.

service rawdevices restart

Create some symbolic links to the raw devices. This is not really necessary, but it acts as a reminder of the true locatons.

ln -s /dev/raw/raw1  /u01/oradata/ocr

ln -s /dev/raw/raw2  /u01/oradata/votingdisk

ln -s /dev/raw/raw3  /u01/oradata/asm1

ln -s /dev/raw/raw4  /u01/oradata/asm2

ln -s /dev/raw/raw5  /u01/oradata/asm3

Run the following commands and add them the "/etc/rc.local" file.

chown oracle:oinstall /dev/raw/raw1

chown oracle:oinstall /dev/raw/raw2

chown oracle:oinstall /dev/raw/raw3

chown oracle:oinstall /dev/raw/raw4

chown oracle:oinstall /dev/raw/raw5

chmod 600 /dev/raw/raw1

chmod 600 /dev/raw/raw2

chmod 600 /dev/raw/raw3

chmod 600 /dev/raw/raw4

chmod 600 /dev/raw/raw5

The shared disks are now configured.

至此节点1已经完全配置好，建议最好做个备份

 

 

下面复制节点2

VBoxManage clonehd H:\rac\node1\rac1.vdi H:\rac\node2\rac2.vdi

然后新建虚拟机，在硬盘出选择已有硬盘H:\rac\node2\rac2.vdi ，选择和节点1一样的两个网卡

关联磁盘

VBoxManage storageattach rac2 --storagectl "SATA" --port 1 --device 0 --type hdd --medium H:\rac\sharestorage\asm1.vdi --mtype shareable

 

VBoxManage storageattach rac2 --storagectl "SATA" --port 2 --device 0 --type hdd --medium H:\rac\sharestorage\asm2.vdi --mtype shareable

VBoxManage storageattach rac2 --storagectl "SATA" --port 3 --device 0 --type hdd --medium H:\rac\sharestorage\asm3.vdi --mtype shareable

 

VBoxManage storageattach rac2 --storagectl "SATA" --port 4 --device 0 --type hdd --medium H:\rac\sharestorage\asm4.vdi --mtype shareable

 

VBoxManage storageattach rac2 --storagectl "SATA" --port 5 --device 0 --type hdd --medium H:\rac\sharestorage\asm5.vdi --mtype shareable

然后打开节点2

删除两个bak网卡

修改IP  hosts文件、环境变量等  这里不在贴过程了


下面开始配置SSH

a) 配置 SSH（每个节点）

修改 sshd_config 文件，允许root登录和证书认证:

[root@odbrac1 ~]# vim /etc/ssh/sshd_config

PermitRootLogin yes

PubkeyAuthentication yes

AuthorizedKeysFile      .ssh/authorized_keys

 

重启SSH服务:

[root@odbrac1 ~]# service sshd restart

 

采用ssh建立oracle用户的互信:

[root@odbrac1 ~]# su - oracle

[oracle@odbrac1 ~]$ ssh-keygen -t dsa

Generating public/private dsa key pair.

Enter file in which to save the key (/home/oracle/.ssh/id_dsa):

Created directory '/home/oracle/.ssh'.

Enter passphrase (empty for no passphrase):

Enter same passphrase again:

Your identification has been saved in /home/oracle/.ssh/id_dsa.

Your public key has been saved in /home/oracle/.ssh/id_dsa.pub.

The key fingerprint is:

f6:7b:c7:d8:70:ab:1c:dd:90:15:f3:89:95:46:62:f1 oracle@odbrac1.localdomain

(采用默认一路回车）

[root@odbrac2 ~]# su - oracle

[oracle@odbrac2 ~]$ ssh-keygen -t dsa

 

在每个节点上生成 authorized_keys 文件（注意：每个节点都生成并复制到其它节点）:

[oracle@odbrac1 ~]$ cat ~/.ssh/id_dsa.pub >> ~/.ssh/authorized_keys

[oracle@odbrac2 ~]$ cat ~/.ssh/id_dsa.pub >> ~/.ssh/authorized_keys

[oracle@odbrac1 ~]$ scp ~/.ssh/authorized_keys root@10.10.100.102:/tmp/authorized_keys.odbrac1

[oracle@odbrac2 ~]$ scp ~/.ssh/authorized_keys root@10.10.100.101:/tmp/authorized_keys.odbrac2

在每个节点上合并 authorized_keys 文件:

[oracle@odbrac1 ~]$ cat /tmp/authorized_keys.odbrac2 >> ~/.ssh/authorized_keys

[oracle@odbrac2 ~]$ cat /tmp/authorized_keys.odbrac1 >> ~/.ssh/authorized_keys

使用more命令可以查看每个节点的 authorized_keys 文件是否一致:

oracle@odbrac1 ~]$ more ~/.ssh/authorized_keys

[oracle@odbrac2 ~]$ more ~/.ssh/authorized_keys

更改 authorized_keys 文件的权限：

[oracle@odbrac1 ~]$ chmod 644 ~/.ssh/authorized_keys

[oracle@odbrac2 ~]$ chmod 644 ~/.ssh/authorized_keys

 

开始建立SSH信任关系（每个节点）：

[oracle@odbrac1 ~]$ exec /usr/bin/ssh-agent $SHELL

[oracle@odbrac1 ~]$ /usr/bin/ssh-add

[oracle@odbrac2 ~]$ exec /usr/bin/ssh-agent $SHELL

[oracle@odbrac2 ~]$ /usr/bin/ssh-add

执行如下命令以测试连通性(每个节点)：

[oracle@odbrac1 ~]$ ssh localhost date

[oracle@odbrac1 ~]$ ssh odbrac1 date

[oracle@odbrac1 ~]$ ssh odbrac2 date

[oracle@odbrac1 ~]$ ssh odbrac1-priv date

[oracle@odbrac1 ~]$ ssh odbrac2-priv date

[oracle@odbrac2 ~]$ ssh localhost date

[oracle@odbrac2 ~]$ ssh odbrac2 date

[oracle@odbrac2 ~]$ ssh odbrac1 date

[oracle@odbrac2 ~]$ ssh odbrac2-priv date

[oracle@odbrac2 ~]$ ssh odbrac1-priv date

(输入“Yes”将接受并注册此密钥)

到这里就配置完成了

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