Performance/LUNs inventory page
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The Performance/LUNs inventory page displays an overview of the performance events, data, and configuration information for each LUN that is being monitored by an instance of Unified Manager. This enables you to quickly monitor the performance of your LUNs, and to troubleshoot performance issues and threshold events.
Depending on how you navigate to this page, the top of the page may display a different title to indicate whether the list has been filtered. For example, when displaying all LUNs, the title is “LUNs”. When displaying a subset of LUNs that is returned from the Threshold Policies page, the title is “LUNs on which policy: LUN_IOPS is applied”.
The buttons along the top of the page enable you to perform searches to locate specific data, create and apply filters to narrow the list of displayed data, export the data on the page to a .csv file, and add or remove columns from the page.
By default, objects on the object inventory pages are sorted based on object performance event criticality. Objects with critical events are listed first, and objects with warning events are listed second. This provides an immediate visual indication of issues that must be addressed. The values of the performance counters are based on an average from the previous 72 or more hours of data, as indicated on the page. You can click the refresh button to update the object inventory data.
You can assign performance threshold policies to, or clear threshold policies from, any object on the object inventory pages using the Assign Performance Threshold Policy and Clear PerformanceThreshold Policy buttons.
LUNs inventory page columns
The Performance/LUNs inventory page contains the following columns for each LUN:
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Status
A healthy object with no active events displays a green check mark icon (
). If the object has an active event, the event indicator icon identifies the event severity: critical events are red (
), error events are orange (
), and warning events are yellow (
). -
LUN
You can click the LUN name to navigate to that LUN's performance details page.
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Latency
The average response time for all I/O requests, expressed in milliseconds per operation.
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IOPS
The input/output operations per second for the LUN.
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MBps
The throughput on the LUN, measured in megabytes per second.
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Free Capacity
The unused storage capacity of the LUN, in gigabytes.
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Total Capacity
The total storage capacity of the LUN, in gigabytes.
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Cluster
The cluster to which the LUN belongs. You can click the cluster name to navigate to that cluster's details page.
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Node
The node to which the LUN belongs. You can click the node name to navigate to that node's details page.
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SVM
The storage virtual machine (SVM) to which the LUN belongs. You can click the SVM name to navigate to that SVM's details page.
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Aggregate
The aggregate to which the LUN belongs. You can click the aggregate name to navigate to that aggregate's details page.
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Volume
The volume to which the LUN belongs. You can click the volume name to navigate to that volume's details page.
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Threshold Policy
The user-defined performance threshold policy, or policies, that are active on this storage object. You can position your cursor over policy names containing an ellipsis (…) to view the full policy name or the list of assigned policy names. The Assign Performance Threshold Policy and Clear Performance Threshold Policy buttons remain disabled until you select one or more objects by clicking the check boxes located at the far left.