Linux下基于裸设备建立oracle 10g数据库


最近打算研究一下Linux裸设备,于是在linux下测试了一下基于裸设备创建Oracle 10g数据库看看。以下是简单步骤:

一、分区

分区的步骤不说了,把硬盘分为如下几个区:

[root@suk1 ~]# fdisk -l /dev/sdb

Disk /dev/sdb: 4294 MB, 4294967296 bytes

255 heads, 63 sectors/track, 522 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System

/dev/sdb1 1 44 353398+ 83 Linux

/dev/sdb2 45 69 200812+ 83 Linux

/dev/sdb3 70 88 152617+ 83 Linux

/dev/sdb4 89 522 3486105 5 Extended

/dev/sdb5 89 101 104391 83 Linux

/dev/sdb6 102 114 104391 83 Linux

/dev/sdb7 115 117 24066 83 Linux

/dev/sdb8 118 120 24066 83 Linux

/dev/sdb9 121 127 56196 83 Linux

/dev/sdb10 128 134 56196 83 Linux

2、绑定裸设备

绑定裸设备有两种方式

1)用命令绑定

[root@suk1 raw]# raw /dev/raw/raw1 /dev/sdb1

/dev/raw/raw1: bound to major 8, minor 17

[root@suk1 raw]# raw /dev/raw/raw2 /dev/sdb2

/dev/raw/raw2: bound to major 8, minor 18

[root@suk1 raw]# raw /dev/raw/raw3 /dev/sdb3

/dev/raw/raw3: bound to major 8, minor 19

[root@suk1 raw]# raw /dev/raw/raw5 /dev/sdb5

/dev/raw/raw5: bound to major 8, minor 21

[root@suk1 raw]# raw /dev/raw/raw6 /dev/sdb6

/dev/raw/raw6: bound to major 8, minor 22

[root@suk1 raw]# raw /dev/raw/raw7 /dev/sdb7

/dev/raw/raw7: bound to major 8, minor 23

[root@suk1 raw]# raw /dev/raw/raw8 /dev/sdb8

/dev/raw/raw8: bound to major 8, minor 24

[root@suk1 raw]# raw /dev/raw/raw9 /dev/sdb9

/dev/raw/raw9: bound to major 8, minor 25

[root@suk1 raw]# raw /dev/raw/raw10 /dev/sdb10

/dev/raw/raw10: bound to major 8, minor 26

[root@suk1 raw]# raw -qa

/dev/raw/raw1: bound to major 8, minor 17

/dev/raw/raw2: bound to major 8, minor 18

/dev/raw/raw3: bound to major 8, minor 19

/dev/raw/raw5: bound to major 8, minor 21

/dev/raw/raw6: bound to major 8, minor 22

/dev/raw/raw7: bound to major 8, minor 23

/dev/raw/raw8: bound to major 8, minor 24

/dev/raw/raw9: bound to major 8, minor 25

/dev/raw/raw10: bound to major 8, minor 26

注意:

/dev/sdb4是扩展分区,不要把裸设备绑定到那个分区上。

这种方式绑定的裸设备在OS重启后会失效,为了你重启后仍然生效,你可以修改/etc/rc.local文件,将如下内容加入到/etc/rc.local文件中:

raw /dev/raw/raw1 /dev/sdb1

raw /dev/raw/raw2 /dev/sdb2

raw /dev/raw/raw3 /dev/sdb3

raw /dev/raw/raw5 /dev/sdb5

raw /dev/raw/raw6 /dev/sdb6

raw /dev/raw/raw7 /dev/sdb7

raw /dev/raw/raw8 /dev/sdb8

raw /dev/raw/raw9 /dev/sdb9

raw /dev/raw/raw10 /dev/sdb10

这种方式实际上就是在开机的时候执行/etc/rc.local文件里的raw命令进行绑定的。

2)用服务的方式绑定

修改/etc/sysconfig/rawdevices文件如下,以开机时自动加载裸设备

/dev/raw/raw1 /dev/sdb1

/dev/raw/raw2 /dev/sdb2

/dev/raw/raw3 /dev/sdb3

/dev/raw/raw5 /dev/sdb5

/dev/raw/raw6 /dev/sdb6

/dev/raw/raw7 /dev/sdb7

/dev/raw/raw8 /dev/sdb8

/dev/raw/raw9 /dev/sdb9

/dev/raw/raw10 /dev/sdb10

然后启动服务:

[root@suk1 raw]# service rawdevices start

[root@suk1 raw]# service rawdevices start

Assigning devices:

/dev/raw/raw1 --> /dev/sdb1

/dev/raw/raw1: bound to major 8, minor 17

/dev/raw/raw2 --> /dev/sdb2

/dev/raw/raw2: bound to major 8, minor 18

/dev/raw/raw3 --> /dev/sdb3

/dev/raw/raw3: bound to major 8, minor 19

/dev/raw/raw5 --> /dev/sdb5

/dev/raw/raw5: bound to major 8, minor 21

/dev/raw/raw6 --> /dev/sdb6

/dev/raw/raw6: bound to major 8, minor 22

/dev/raw/raw7 --> /dev/sdb7

/dev/raw/raw7: bound to major 8, minor 23

/dev/raw/raw8 --> /dev/sdb8

/dev/raw/raw8: bound to major 8, minor 24

/dev/raw/raw9 --> /dev/sdb9

/dev/raw/raw9: bound to major 8, minor 25

/dev/raw/raw10 --> /dev/sdb10

这种方式绑定的裸设备在OS重启后仍然生效。

3、修改裸设备的属主

修改裸设备的属主也有两种方式:

1)命令修改

命令修改很简单:

[root@suk1 raw]# chown oracle:oinstall /dev/raw/raw1

[root@suk1 raw]# chown oracle:oinstall /dev/raw/raw2

[root@suk1 raw]# chown oracle:oinstall /dev/raw/raw3

[root@suk1 raw]# chown oracle:oinstall /dev/raw/raw4

[root@suk1 raw]# chown oracle:oinstall /dev/raw/raw5

[root@suk1 raw]# chown oracle:oinstall /dev/raw/raw6

[root@suk1 raw]# chown oracle:oinstall /dev/raw/raw7

[root@suk1 raw]# chown oracle:oinstall /dev/raw/raw8

[root@suk1 raw]# chown oracle:oinstall /dev/raw/raw9

[root@suk1 raw]# chown oracle:oinstall /dev/raw/raw10

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