ASMLIB is a support library for Oracle Database 10g Automatic Storage Management Features. Automatic Storage Management (ASM) simplifies the management of the database. It no longer requires DBA direct management of thousands of Oracle database files, and simply manages disk groups assigned to the Oracle database. The ASMLIB makes it more efficient to use ASM's Oracle database and can access the disk group it is using.
Http://oss.oracle.com/projects/oracleasm/
Http://www.racle.com/technology/global/cn/tech/linux/ASMLIB/index.html
