Re: What to keep in ASM?

  • From: "Alexander Fatkulin" <afatkulin@xxxxxxxxx>
  • To: "Don Seiler" <don@xxxxxxxxx>
  • Date: Tue, 27 Feb 2007 12:30:16 +1000

Basically it does a round-robin allocation (+ disk (LUN) size
acquiring). It tries to avoid the hot spots by striping extents across
different disks. But it can't say "uh-huh, we got a hot spot here
let's try to move those things here and there".

On 2/27/07, Don Seiler <don@xxxxxxxxx> wrote:
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.


Alexander Fatkulin,
Senior Oracle DBA

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