Automatic Storage Management (ASM) is a feature that has be introduced in Oracle 10g to simplify the storage of Oracle datafiles, controlfiles, logfiles and backups.
ASM will be used as the file system and volume manager for Oracle Database files (data, online redo logs, control files, archived redo logs), and the Fast Recovery Area.
NOTE: ASMLib in the Unbreakable Enterprise Kernel.
ASMLib – Linux specific ASM library and its associated driver.
The Oracle ASMLib kernel driver is now included in the Unbreakable Enterprise Kernel. No driver package needs to be installed when using this kernel.
The oracleasm-support and oracleasmlib packages still need to be installed.
The oracleasm-support can be installed from Oracle Linux ISO image. For other Linux flavors could be found here – (Download section for particular Linux distribution)
The oracleasmlib can be downloaded from ULN (Unbreakable Linux Network), subscription is required. Non-subscribers are free to use the similar package built for RHEL on their Enterprise Linux machines, which we will use in this tutorial.
1. Installing Oracle Enterprise Linux and creating virtual hard disks in VMware for ASM disks
2. Creating recommended OS groups and user for Grid Infrastructure
3. Creating login scripts for grid and oracle users
4. Installing Oracle ASM packages
5. Creating ASM disk volumes
6. Downloading and installing Oracle Grid Infrastructure software
7. Creating ASM disk groups
8. Installing Oracle database software and create database instance