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Oracleasm介绍和安装linux+oracle10g+asm过程

时间：2021-07-01 10:21:17 帮助过：32人阅读

Oracle asm介绍和安装linux5.2oracle10gasm过程 1）ASM（自动存储管理）的来由： ASM是Oracle 10g R2中为了简化Oracle数据库的管理而推出来的一项新功能，这是Oracle自己提供的卷管理器，主要用于替代操作系统所提供的LVM，它不仅支持单实例，同时对RAC的支

Oracle asm介绍和安装linux5.2+oracle10g+asm过程

1）ASM（自动存储管理）的来由：

ASM是Oracle 10g R2中为了简化Oracle数据库的管理而推出来的一项新功能，这是Oracle自己提供的卷管理器，主要用于替代操作系统所提供的LVM，它不仅支持单实例，同时对RAC的支持也是非常好。ASM可以自动管理磁盘组并提供有效的数据冗余功能。使用ASM（自动存储管理）后，数据库管理员不再需要对ORACLE中成千上万的数据文件进行管理和分类，从而简化了DBA的工作量，可以使得工作效率大大提高。

2）什么是ASM

ASM它提供了以平台无关的文件系统、逻辑卷管理以及软RAID服务。ASM可以支持条带化和磁盘镜像，从而实现了在数据库被加载的情况下添加或移除磁盘以及自动平衡I/O以删除“热点”。它还支持直接和异步的I/O并使用Oracle9i中引入的Oracle数据管理器API（简化的I/O系统调用接口）。
ASM是做为单独的Oracle实例实施和部署，并且它只需要有参数文件，不需要其它的任何物理文件，就可以启动ASM实例，只有它在运行的时候，才能被其它数据访问。在Linux平台上，只有运行了OCSSD服务（Oracle安装程序默认安装）了才能和访问ASM。

3）安装配置asm软件

1.下载地址：otn http://www.oracle.com/technetwork/server-storage/linux/downloads/rhel4-092650.html 找对应内核的asm所需安装包

2.以root用户安装asm包:

ps:kernel-debug kernel-PAE kernel-xen 是asm所需先前包，从linux安装光盘中可以获得

3.硬盘分区

[root@localhost temp]# fdisk -l

Disk /dev/sda: 214.7 GB, 214748364800 bytes
255 heads, 63 sectors/track, 26108 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/sda1 * 1 13 104391 83 Linux
/dev/sda2 14 535 4192965 82 Linux swap / Solaris
/dev/sda3 536 26108 205415122+ 83 Linux

Disk /dev/sdb: 214.7 GB, 214748364800 bytes
255 heads, 63 sectors/track, 26108 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/sdb doesn't contain a valid partition table

Disk /dev/sdc: 107.3 GB, 107374182400 bytes
255 heads, 63 sectors/track, 13054 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/sdc doesn't contain a valid partition table
[root@localhost temp]# 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.

The number of cylinders for this disk is set to 26108.
There is nothing wrong with that, but this is larger than 1024,
and could in certain setups cause problems with:
1) software that runs at boot time (e.g., old versions of LILO)
2) booting and partitioning software from other OSs
(e.g., DOS FDISK, OS/2 FDISK)
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 (1-26108, default 1):
Using default value 1
Last cylinder or +size or +sizeM or +sizeK (1-26108, default 26108):
Using default value 26108

Command (m for help): w
The partition table has been altered!

Calling ioctl() to re-read partition table.
Syncing disks.
[root@localhost temp]# fdisk /dev/sdc
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.

The number of cylinders for this disk is set to 13054.
There is nothing wrong with that, but this is larger than 1024,
and could in certain setups cause problems with:
1) software that runs at boot time (e.g., old versions of LILO)
2) booting and partitioning software from other OSs
(e.g., DOS FDISK, OS/2 FDISK)
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 (1-13054, default 1):
Using default value 1
Last cylinder or +size or +sizeM or +sizeK (1-13054, default 13054):
Using default value 13054

Command (m for help): w
The partition table has been altered!

Calling ioctl() to re-read partition table.
Syncing disks.

4.创建asm磁盘

配置asm启动方式和所属用户,这里假设oracle和dba组已经建立，也可以参考linux安装oracle10g文章内容，传送门:http://blog.csdn.net/w63667329/article/details/7890172

[root@localhost temp]# /etc/init.d/oracleasm configure
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]: y
Writing Oracle ASM library driver configuration: done
Initializing the Oracle ASMLib driver: [ OK ]
Scanning the system for Oracle ASMLib disks: [ OK ]