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Benny4

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Benny4

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December 13th, 2011 07:00

Performance metrics @ Disk / LUN / RG / Meta

I wanted to open this topic to hopefully get a little more clarity around the area of performance monitoring on the Clariion.

These are the metrics that I was told to use as a bench mark from my performance tuning class:

Utilization = 70%

Throughput = 100

Bandwidth mbps = 10

Responsetime = 20

Avg Queue Length 12 or 2 per disk

Now when I look at this through analyzer I see areas for concern at a LUN / Meta / RG level (high response times, IO) but if I expand this and look at a disk by disk level things look good.  Shouldnt analyzer adjust the metrics based on the number of disks behind each LUN / Meta / RG?  It can make for some really concerning metrics otherwise. Or is there a better tool to analyze this information?

Thanks