OraFighter wrote:Simple answer. No.
If I am using ASM for my database , is it any performance improvement I can expect ? -- in disk I/O rate,
and Is it compulsory to have multiple Physical disk itself for high disk i/o rate ?Not a proper question as "high" I/O rates are dependent on a number of factors. One of which is the number of physical disks (as that decreases I/O latency) and the actual physical read/write/seek times of the disk (as that increases raw I/O call performance).
or if I partition a single physical disk into multiple logical disk . I can make more i/o rate ?No.