Linuxudev动态管理OracleASM磁盘-实验-创新互联

1       概述

Red Hat Enterprise Linux (RHEL) 6以前,Oracle都是采用ASMLib包来管理ASM磁盘。但是20115月甲骨文发表了一份声明,声明中称Oracle将不再提供Red Hat Enterprise Linux (RHEL) 6ASMLib包和相关更新。

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甲骨文在这份声明中表示,ASMLib更新将通过Unbreakable Linux NetworkULN)来发布,并仅对Oracle Linux客户开放。ULN虽然为甲骨文和红帽的客户服务,但如果客户想要使用ASMLib,就必须使用Oraclekernel来替换掉红帽的kernel

 

本实验部署Oracle+ASM,不再采用ASMLib,而是采用udev动态管理ASM磁盘。

 

注意:Linux 内核 2.6以上才支持udev

 

虚拟机:VMware Workstation 9

操作系统:Red Hat Enterprise Linux Server release 5.6

系统内核:2.6.18-238.el5

数据库:Oracle Database 11.2.0.1

 

2       实验步骤

之前已经基于udev的方式创建过ASM磁盘,而且已经安装好Oracle Grid Oracle Database,并创建好了数据库,接下来将添加41G磁盘,分别扩展现有ASM磁盘组DG_DATA,新建ASM磁盘组DG_NEW_DATA

 

查看新添加的磁盘,分别为/dev/sdb/dev/sdg/dev/sdh/dev/sdi

 

[root@ora32 dev]# fdisk -l

Disk /dev/sda: 23.6 GB, 23622320128 bytes

255 heads, 63 sectors/track, 2871 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System

/dev/sda1   *           1          65      522081   83  Linux

/dev/sda2              66         457     3148740   82  Linux swap / Solaris

/dev/sda3             458        2871    19390455   8e  Linux LVM

Disk /dev/sdb: 1073 MB, 1073741824 bytes

255 heads, 63 sectors/track, 130 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

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

Disk /dev/sdc: 2147 MB, 2147483648 bytes

255 heads, 63 sectors/track, 261 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System

/dev/sdc1               1         261     2096451   83  Linux

Disk /dev/sdd: 2147 MB, 2147483648 bytes

255 heads, 63 sectors/track, 261 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System

/dev/sdd1               1         261     2096451   83  Linux

Disk /dev/sde: 2147 MB, 2147483648 bytes

255 heads, 63 sectors/track, 261 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System

/dev/sde1               1         261     2096451   83  Linux

Disk /dev/sdf: 2147 MB, 2147483648 bytes

255 heads, 63 sectors/track, 261 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System

/dev/sdf1               1         261     2096451   83  Linux

Disk /dev/sdg: 1073 MB, 1073741824 bytes

255 heads, 63 sectors/track, 130 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

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

Disk /dev/sdh: 1073 MB, 1073741824 bytes

255 heads, 63 sectors/track, 130 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

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

Disk /dev/sdi: 1073 MB, 1073741824 bytes

255 heads, 63 sectors/track, 130 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

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


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