如何配置共享存储和进行UDEV存储设备绑定

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配置共享存储和UDEV存储设备绑定

2013年7月29日,星期一

1.vrh2新建磁盘

前提条件：vrh3主机需要是关闭状态

共享磁盘必须使用固定大小磁盘类型，否则无法把其设置为共享类型

将以上四个磁盘设置为可共享的类型

点击"管理"->"虚拟介质管理"->选择磁盘->选择类型为共享

在virtual Box管理器上显示可能会有一点延迟

打开主机的I/O Cache

2.vrh3添加现有磁盘

添加磁盘并且打开主机的I/O Cache

3.在vrh2上绑定存储磁盘

3.1把sdb 3G这个盘划分成两个分区

[root@vrh2 ~]# 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): p

Disk /dev/sdb: 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

Command (m for help): n

Command action

e extended

p primary partition (1-4)

p

Partition number (1-4): 1

First cylinder (1-391, default 1):

Using default value 1

Last cylinder or +size or +sizeM or +sizeK (1-391, default 391): +1500M

Command (m for help): p

Disk /dev/sdb: 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/sdb1 1 183 1469916 83 Linux

Command (m for help): n

Command action

e extended

p primary partition (1-4)

p

Partition number (1-4): 2

First cylinder (184-391, default 184):

Using default value 184

Last cylinder or +size or +sizeM or +sizeK (184-391, default 391):

Using default value 391

Command (m for help): p

Disk /dev/sdb: 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/sdb1 1 183 1469916 83 Linux

/dev/sdb2 184 391 1670760 83 Linux

Command (m for help): w

The partition table has been altered!

Calling ioctl() to re-read partition table.

WARNING: Re-reading the partition table failed with error 16: Device or resource busy.

The kernel still uses the old table.

The new table will be used at the next reboot.

Syncing disks.

[root@vrh2 ~]# partprobe /dev/sdb

[root@vrh2 ~]# ls -l /dev/sdb*

brw-r----- 1 root disk 8, 16 Jul 29 07:39 /dev/sdb

b rw-r----- 1 root disk 8, 17 Jul 29 07:40 /dev/sdb1 #记住8,17 8,18 之后绑定会用到

b rw-r----- 1 root disk 8, 18 Jul 29 07:40 /dev/sdb2 #注意这里的sdb目前还是块设备，我们之后会把它设置为raw设备

3.2绑定磁盘sdb

[root@vrh2 ~]# cd /etc/udev/rules.d/

[root@vrh2 rules.d]# vi 60-raw.rules

# Enter raw device bindings here.

#

# An example would be:

# ACTION=="add", KERNEL=="sda", RUN+="/bin/raw /dev/raw/raw1 %N"

# to bind /dev/raw/raw1 to /dev/sda, or

# ACTION=="add", ENV{MAJOR}=="8", ENV{MINOR}=="1", RUN+="/bin/raw /dev/raw/raw2 %M %m"

# to bind /dev/raw/raw2 to the device with major 8, minor 1.

ACTION=="add", KERNEL=="sdb1", RUN+="/bin/raw /dev/raw/raw1 %N"

ACTION=="add", KERNEL=="sdb2", RUN+="/bin/raw /dev/raw/raw2 %N"

ACTION=="add", KERNEL=="raw*", OWNER=="oracle", GROUP=="oinstall", MODE=="0660" #把权限赋予给oracle用户和oinstall用户组

[root@vrh2 rules.d]# start_udev

Starting udev: [ OK ]

[root@vrh2 rules.d]# cd /dev/raw

[root@vrh2 raw]# ls -l

total 0

crw-rw---- 1 oracle oinstall 162, 1 Jul 29 07:56 raw1

crw-rw---- 1 oracle oinstall 162, 2 Jul 29 07:56 raw2

3.3把sdc、sdd、sde绑定成asm文件格式

使用以下脚本可以实现，注意该脚本要在/dev/raw目录执行

for i in b c d e f g h i j k ;

do

echo "KERNEL==\"sd*\", BUS==\"scsi\", PROGRAM==\"/sbin/scsi_id -g -u -s %p\", RESULT==\"`scsi_id -g -u -s /block/sd$i`\", NAME=\"asm-disk$i\", WNER=\"oracle\", GROUP=\"oinstall\", MODE=\"0660\""

done

我们这里只有cde三个盘，只需要将in后面写上c d e即可，

解释：

sbin/scsi_id -g -u 该号是唯一的，所以根据它来绑定

[root@vrh2 raw]# ls

raw1 raw2

[root@vrh2 raw]# for i in c d e;

> do

> echo "sd$i" "`scsi_id -g -u -s /block/sd$i`";

> done

sdc SATA_VBOX_HARDDISK_VBb86af276-b24615a9_

sdd SATA_VBOX_HARDDISK_VB453dbb62-ac2d0a41_

sde SATA_VBOX_HARDDISK_VB2a60d1f8-c1fd7b46_

执行脚本

[root@vrh2 raw]# for i in c d e;

> do

> echo "KERNEL==\"sd*\", BUS==\"scsi\", PROGRAM==\"/sbin/scsi_id -g -u -s %p\", RESULT==\"`scsi_id -g -u -s /block/sd$i`\", NAME=\"asm-disk$i\", WNER=\"oracle\", GROUP=\"oinstall\", MODE=\"0660\""

> done

KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id -g -u -s %p", RESULT=="SATA_VBOX_HARDDISK_VBb86af276-b24615a9_", NAME="asm-diskc", OWNER="oracle", GROUP="oinstall", MODE="0660"

KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id -g -u -s %p", RESULT=="SATA_VBOX_HARDDISK_VB453dbb62-ac2d0a41_", NAME="asm-diskd", OWNER="oracle", GROUP="oinstall", MODE="0660"

KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id -g -u -s %p", RESULT=="SATA_VBOX_HARDDISK_VB2a60d1f8-c1fd7b46_", NAME="asm-diske", OWNER="oracle", GROUP="oinstall", MODE="0660"

[root@vrh2 raw]#

[root@vrh2 ~]# cd /etc/udev/rules.d/

[root@vrh2 rules.d]# touch 99-oracle-asmdevices.rules

[root@vrh2 rules.d]# vi 99-oracle-asmdevices.rules

KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id -g -u -s %p", RESULT=="SATA_VBOX_HARDDISK_VBb86af276-b24615a9_", NAME="asm-diskc", OWNER="oracle", GROUP="oinstall", MODE="0660"

KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id -g -u -s %p", RESULT=="SATA_VBOX_HARDDISK_VB453dbb62-ac2d0a41_", NAME="asm-diskd", OWNER="oracle", GROUP="oinstall", MODE="0660"

KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id -g -u -s %p", RESULT=="SATA_VBOX_HARDDISK_VB2a60d1f8-c1fd7b46_", NAME="asm-diske", OWNER="oracle", GROUP="oinstall", MODE="0660"

[root@vrh2 rules.d]# start_udev

Starting udev: [ OK ]

[root@vrh2 rules.d]# ls -l /dev/asm*

brw-rw---- 1 oracle oinstall 8, 32 Jul 29 20:30 /dev/asm-diskc

brw-rw---- 1 oracle oinstall 8, 48 Jul 29 20:30 /dev/asm-diskd

brw-rw---- 1 oracle oinstall 8, 64 Jul 29 20:30 /dev/asm-diske

4.在vrh3上绑定存储磁盘

4.1启动vrh3

4.2复制刚才配置的vrh2上的规则文件到vrh3

[root@vrh2 rules.d]# scp 60-raw.rules vrh3:/etc/udev/rules.d

The authenticity of host 'vrh3 (192.168.1.103)' can't be established.

RSA key fingerprint is 92:e1:fc:a6:f8:15:37:27:7b:50:41:fa:be:4d:19:0b.

Are you sure you want to continue connecting (yes/no)? yes

Warning: Permanently added 'vrh3,192.168.1.103' (RSA) to the list of known hosts.

root@vrh3's password:

60-raw.rules 100% 527 0.5KB/s 00:00

[root@vrh2 rules.d]# scp 99-oracle-asmdevices.rules vrh3:/etc/udev/rules.d

root@vrh3's password:

99-oracle-asmdevices.rules 100% 544 0.5KB/s 00:00

4.3启动服务

[root@vrh3 rules.d]# start_udev

Starting udev: [ OK ]

[root@vrh3 rules.d]# ll /dev/raw/raw*

crw-rw---- 1 oracle oinstall 162, 1 Jul 29 20:39 /dev/raw/raw1

crw-rw---- 1 oracle oinstall 162, 2 Jul 29 20:39 /dev/raw/raw2

[root@vrh3 rules.d]#

[root@vrh3 rules.d]# ll /dev/asm*

brw-rw---- 1 oracle oinstall 8, 32 Jul 29 20:39 /dev/asm-diskc

brw-rw---- 1 oracle oinstall 8, 48 Jul 29 20:39 /dev/asm-diskd

brw-rw---- 1 oracle oinstall 8, 64 Jul 29 20:39 /dev/asm-diske

5.vrh2与vrh3 sshd互信配置

5.1 vrh2上执行

[root@vrh2 /]# su - oracle

[oracle@vrh2 ~]$ ssh-keygen -t rsa

Generating public/private rsa key pair.

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

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_rsa.

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

The key fingerprint is:

87:0f:5e:55:8e:7a:b6:47:e7:34:ad:27:b4:63:a9:da oracle@vrh2.oracle.com

[oracle@vrh2 ~]$ ssh-keygen -t dsa

Generating public/private dsa key pair.

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

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:

0d:ec:9d:41:00:5d:cc:e7:c2:8a:e8:6c:30:00:90:66 oracle@vrh2.oracle.com

5.2 vrh3上执行

[root@vrh3 /]# su - oracle

[oracle@vrh3 ~]$ ssh-keygen -t rsa

Generating public/private rsa key pair.

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

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_rsa.

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

The key fingerprint is:

83:a3:22:6a:aa:cf:90:74:11:7e:48:58:86:06:7b:aa oracle@vrh3.oracle.com

[oracle@vrh3 ~]$ ssh-keygen -t dsa

Generating public/private dsa key pair.

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

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:

29:3b:dc:1b:49:bb:0e:90:29:a7:d6:6b:26:99:de:b7 oracle@vrh3.oracle.com

5.3 创建一个授权文件保存两台主机的授权信息

[oracle@vrh2 .ssh]$ touch authorized_keys

[oracle@vrh2 .ssh]$ cat id_dsa.pub >> authorized_keys #将本机vrh2上的dsa保存到授权文件中

[oracle@vrh2 .ssh]$ cat id_rsa.pub >> authorized_keys #将本机vrh2上的rsa保存到授权文件中

[oracle@vrh2 .ssh]$ ssh vrh3 cat ~/.ssh/id_dsa.pub >> authorized_keys #将vrh3上的dsa保存到授权文件中

The authenticity of host 'vrh3 (192.168.1.103)' can't be established. #将vrh3上的rsa保存到授权文件中

RSA key fingerprint is 92:e1:fc:a6:f8:15:37:27:7b:50:41:fa:be:4d:19:0b.

Are you sure you want to continue connecting (yes/no)? yes

Warning: Permanently added 'vrh3,192.168.1.103' (RSA) to the list of known hosts.

oracle@vrh3's password:

[oracle@vrh2 .ssh]$ ssh vrh3 cat ~/.ssh/id_rsa.pub >> authorized_keys #将授权文件拷贝到vrh3主机上

oracle@vrh3's password:

[oracle@vrh2 .ssh]$ scp authorized_keys vrh3:~/.ssh

oracle@vrh3's password:

authorized_keys 100% 2032 2.0KB/s 00:00

5.4检查vrh2上主机的时间同步情况

[oracle@vrh2 .ssh]$ date;ssh vrh3 date

Mon Jul 29 20:53:44 CST 2013

Mon Jul 29 20:53:44 CST 2013

[oracle@vrh2 .ssh]$ date;ssh vrh3-priv date

Mon Jul 29 20:54:15 CST 2013

Mon Jul 29 20:54:15 CST 2013

[oracle@vrh2 .ssh]$ date;ssh vrh2 date

Mon Jul 29 20:55:36 CST 2013

Mon Jul 29 20:55:36 CST 2013

[oracle@vrh2 .ssh]$ date;ssh vrh2-priv date

Mon Jul 29 20:55:45 CST 2013

Mon Jul 29 20:55:45 CST 2013

5.5检查vrh3上主机的时间同步情况

[oracle@vrh3 ~]$ date;ssh vrh2 date

Mon Jul 29 20:56:50 CST 2013

Mon Jul 29 20:56:50 CST 2013

[oracle@vrh3 ~]$ date;ssh vrh2-priv date

Mon Jul 29 20:56:59 CST 2013

Mon Jul 29 20:56:59 CST 2013

[oracle@vrh3 ~]$ date;ssh vrh3 date

Mon Jul 29 20:57:54 CST 2013

Mon Jul 29 20:57:54 CST 2013

[oracle@vrh3 ~]$ date;ssh vrh3-priv date

Mon Jul 29 20:57:45 CST 2013

Mon Jul 29 20:57:46 CST 2013

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