Monitoring performance of NSDs

The NSDs page provides an easy way to monitor the performance, health status, and configuration aspects of the all network shared disks (NSD) that are available in the ESS cluster.

The following options are available in the NSDs page to analyze the NSD performance:
  1. An NSD table that displays the available NSDs and many different performance metrics. To find NSDs with extreme values, you can sort the values that are displayed in the table by different performance metrics. Click the performance metric in the table header to sort the data based on that metric. You can select the time range that determines the averaging of the values that are displayed in the table from the time range selector, which is placed in the upper right corner. The metrics in the table are refreshed based on the selected time frame. You can refresh it manually to see the latest data.
  2. A detailed view of the performance and health aspects of individual NSDs are also available in the NSDs page. Select the NSD for which you need to view the performance details and select View Details. The system displays various performance charts on the right pane.
    The detailed performance view helps to drill-down to various performance aspects. The following list provides the performance details that can be obtained from each tab of the performance view:
    • Overview: Provides an overview of the NSD performance details and related attributes.
    • Events: System health events reported for the NSD.
    • Nodes: Details of the nodes that serve the NSD.
    • Vdisk: Displays the ESS aspects of NSD.