My understanding is that ASM will also shift data around to avoid the "hot block" scenario, avoiding I/O contention. It wasn't explicitly stated in the passage I pasted, hopefully my understanding is correct. Don. On 2/26/07, Alexander Fatkulin <afatkulin@xxxxxxxxx> wrote:
> Am I giving this feature too much credit? ASM spread extents in proportion to the disk size regardless of the speed and workload characteristics of the underlying hardware (at least I never saw the opposite). See the x$kffxp (ASM instance) for extent allocation map.
-- Don Seiler http://seilerwerks.blogspot.com -- //www.freelists.org/webpage/oracle-l