• Subject: Re: DASD performance curve graphs??
  • From: email@xxxxxxxxxxxxxxxxxxx (James W Kilgore)
  • Date: Wed, 06 Jan 1999 22:33:59 -0800
  • Organization: Progressive Data Systems, Inc.

I'll second that: 40% activity, 70% capacity whichever you hit first.

drothman@us.ibm.com wrote:

> It depends on what your definition of "utilization" is...
> The 40% guideline in the Performance Capabilities Reference refers to
> "disk ARM utilization" (how busy).  Some of you are confusing this with
> "disk SPACE utilization" (how full) which most of my customers run at
> 70-80%.  I haven't seen published guidelines on disk space utilization.

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