Unified Manager enables you to monitor and analyze I/O performance of volume workloads on your clusters. You can determine whether a performance issue is on the cluster and whether storage is the issue.
Note: This chapter describes how to analyze workload performance using the Performance/Volume Details page and the Event details page.
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Determining whether a workload has a performance issue
You can use Unified Manager to determine whether a detected performance event was truly caused by a performance issue on the cluster. The event might have been caused a spike in activity, for example, that drove up its response time, but now the response time has returned to it usual levels.
Identifying trends of I/O response time on cluster components
You can use Unified Manager to view the performance trends for all monitored cluster components for a volume workload. You can see, over time, which components have the highest usage, whether the highest usage is from read or write requests, and how the usage has impacted the workload response time.
Analyzing the performance improvements achieved from moving a volume
You can use Unified Manager to investigate the impact of a volume move operation on the latency (response time) of other volumes on the cluster. Moving a high performing volume to a less busy aggregate or an aggregate with flash storage enabled allows the volume to perform more efficiently.
Performance/Volume Details page
This page provides detailed performance statistics for all I/O activity and operations for the selected FlexVol volume, FlexGroup volume, or FlexGroup constituent workload. You can select a specific time frame over which to view the statistics and events for the volume. The events identify performance events and changes that might be impacting I/O performance.