Oracle Linux Installation

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ASM Installation on LINUX

March 2009

Automatic Storage Management Industry's first and only database file system

Author: Esteban Bernal

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ASM Installation On LINUX

General Architecture

Automatic Storage Management is part of the database kernel. One portion of the Automatic Storage Management code allows for the startup of a special instance called an ASM instance. ASM instances do not mount databases, but instead manage the metadata needed to make ASM files available to ordinary database instances. Both ASM instances and database instances have access to a common set of disks called disk groups. Database instances access the contents of ASM files directly, communicating with an ASM instance only to obtain information about the layout of these files. .

Author: Esteban Bernal

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ASM Installation On LINUX

Oracle Database 11g Installation: Changes

During an Oracle Database 11g installation, you will notice several changes to the installation process. These changes include standard database out-of-box memory calculations, character set determination, support for the new SYSASM role, and a corresponding operating system privileges group (OSASM) that is intended to secure privileges to perform ASM administration tasks. .

Author: Esteban Bernal

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ASM Installation On LINUX

1) Downloading the 11g RDBMS Software.

You need either the DVDs or a downloaded version of the DVDs. You can download the Oracle Software from:

http://www.oracle.com/technology/software/products/database/index.html

Author: Esteban Bernal

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ASM Installation On LINUX

2) Decompressing the Oracle Software.

After the software is downloaded you will need to decompress it as follow: .

Author: Esteban Bernal

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ASM Installation On LINUX

3) Checking the Hardware Requirements.

1) At least 1 GB of RAM 2) Swap Area needs to be set as follow:

If RAM = 1024MB to 2048Mb then 1.5 times RAM elseif RAM > 2048MB and < 8192MB then...