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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
目录：
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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
| 磁盘名称 | 创建类型 | 格式 | 磁盘类型 | 大小 | 说明 |
| ocr | 新建 | VDI | 固定大小 | 3G | 放置OCR和vodvoting Disk |
| dbshare1 | 新建 | VDI | 固定大小 | 5G | 放置数据文件 |
| dbshare2 | 新建 | VDI | 固定大小 | 5G | 放置数据文件 |
| dbshare3 | 新建 | VDI | 固定大小 | 5G | 放置数据文件 |
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
| 磁盘名称 | 创建类型 | 格式 | 磁盘类型 | 大小 | 说明 |
| ocr | 现有 | VDI | 固定大小 | 3G | 放置OCR和vodvoting Disk |
| dbshare1 | 现有 | VDI | 固定大小 | 5G | 放置数据文件 |
| dbshare2 | 现有 | VDI | 固定大小 | 5G | 放置数据文件 |
| dbshare3 | 现有 | VDI | 固定大小 | 5G | 放置数据文件 |
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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