For some reason, many of us (myself included) used to think ASM moved hot
blocks to different areas to smooth out performance. This was a myth but
I'm unsure of the origin.
I know it started many years ago however and I was disabused of the notion
some time ago.
The only rebalancing ASM does is when you add or remove disks and data has
to be moved/rebalanced based on percentages used of each device in the disk
group. Has nothing to do with block usage.
Regards,
Chris
On Wed, May 20, 2015 at 11:00 AM, Malcolm Lawrence <
lawrence.malcolm@xxxxxxxxx> wrote:
All,
Does ASM move hot spots around in the background, or do you have to do a
rebalance accomplish that?
I cannot find anywhere in Oracle documentation stating that it does, so I
assume that that it does not.
Malcolm Lawrence
