When monitoring a NetApp, the thing that matters is (for most applications) the latency of requests on a volume (or LUN.)
Easy enough to get – with LogicMonitor it’s graphed and alerted on automatically, for every volume. But of course when there is an issue, the focus changes to why there is latency. Usually it’s a limitation of the disks in the aggregate being IO bound. Assuming there is no need for a reallocate (the disks are evenly loaded – I’ll write a separate article about how to determine that), how can you tell when what level of disk busy-ness is acceptable? Visualizing that performance like the below is what this post is about.
Performance monitoring for all your infrastructure & applications. In minutes, not hours.
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