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 Post subject: Re: PD Service Time
PostPosted: Wed Sep 24, 2014 12:13 pm 

Joined: Mon Feb 03, 2014 9:40 am
Posts: 116
Do Cumulative Region IO density report for each CPG in this AO. This will give you idea if AO is working well.

Image

In the example above we have 3 CPGs:

Green - FC PDs, part of AO
Blue - SSD PDs, part of higher tier AO for Green CPG
Pink - no AO, just plain FC PD

Steeper line mean less data responsible for smaller % of data for most IO.
In your case you should see both 10K and 7K looking similar to a green one - load is spread evenly. SSD should be steep.


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