簡單配置ASM

簡單配置ASM

環境描述

系統：Red Hat Enterprise Linux Server release 5.4 (Tikanga)
資料庫版本：Oracle Database 10g Enterprise Edition Release 10.2.0.1.0添加磁碟

添加三塊硬碟，用來做ASM磁碟組：

三塊磁碟最好一樣大， 不一樣大在做冗餘時容易導致熱點競爭，增大磁碟的I/O，影響效能。

重啟一下系統，格式磁碟

在CentOS 6.4下安裝Oracle 11gR2(x64)

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Debian 下 安裝 Oracle 11g XE R2

Oracle 11g從入門到精通 PDF+光碟片原始碼

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Oracle 10g 手工建立ASM資料庫

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啟動系統後fdisk -l查看載入的磁碟，fdisk /dev/sdb對sdb進行格式化

[root@localhost ~]# 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 1044.

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 (1-1044, default 1):

Using default value 1

Last cylinder or +size or +sizeM or +sizeK (1-1044, default 1044):

Using default value 1044

Command (m for help): w

The partition table has been altered!

Calling ioctl() to re-read partition table.

Syncing disks.

[root@localhost ~]# fdisk /dev/sdc

[root@localhost ~]# fdisk /dev/sdd

[root@localhost ~]# fdisk -l

看到如下資訊 sdb、sbc、sdd三塊磁碟將用來做ASM磁碟組

Disk /dev/sdb: 8589 MB, 8589934592 bytes

255 heads, 63 sectors/track, 1044 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

 

Device Boot Start End Blocks Id System

/dev/sdb1 1 1044 8385898+ 83 Linux

 

Disk /dev/sdc: 8589 MB, 8589934592 bytes

255 heads, 63 sectors/track, 1044 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

 

Device Boot Start End Blocks Id System

/dev/sdc1 1 1044 8385898+ 83 Linux

 

Disk /dev/sdd: 8589 MB, 8589934592 bytes

255 heads, 63 sectors/track, 1044 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

 

Device Boot Start End Blocks Id System

/dev/sdd1 1 1044 8385898+ 83 Linux

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