What is ASMLIB?
ASMLIB is the support library for the ASM. ASMLIB allows an Oracle database using ASM more efficient and capable access to diskgroups. The purpose of ASMLIB, is to provide an alternative interface to identify and access block devices. Additionally, the ASMLIB API enables storage and operating system vendors to supply extended storage-related features. You can read more about ASMLIB in Note: 359266.1 – FAQ ASMLIB CONFIGURE, VERIFY, TROUBLESHOOT ASMLIB for linux can be downloaded from following link http://www.oracle.com/technology/tech/linux/asmlib/index.html 14) What is SYSASM role? Starting from Oracle 11g, SYSASM role can be used to administer the ASM instances.