Re: Disk Device Busy (%) - What exactly is this?

  • From: "Radoulov, Dimitre" <cichomitiko@xxxxxxxxx>
  • To: Guillermo Alan Bort <cicciuxdba@xxxxxxxxx>
  • Date: Mon, 21 Nov 2011 17:20:37 +0100

Hi Alan,
yes, this was new to me too. In another mail Grzegorz Goryszewski have 
just posted a link
to an article by Alex Gorbachev, which seem to confirm that too:

Quoting it:

Traditionally, it’s common to assume that the closer to 100% utilization 
a device is, the more saturated it is.
This might be true when the system device corresponds to a single 
physical disk.
However, with devices representing a LUN of a modern storage box, the 
story might be completely different.
[...]

Regards
Dimitre
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