Identifying performance issues for IBM Storage Virtualize storage systems

You can identify key metrics that are outside of a standard range for resources that run IBM Storage Virtualize by using the key performance indicators charts.

Before you begin

Before you view the performance of your resources that run IBM Storage Virtualize, ensure that performance data was collected for those systems. IBM® Storage Insights Pro collects data so that you can measure the performance of storage systems.

About this task

In this documentation, IBM Storage Virtualize is used to refer collectively to IBM SAN Volume Controller, IBM Storage Virtualize for Public Cloud, IBM Storage Virtualize as Software Only, and IBM Storwize® storage systems, and to IBM FlashSystem® devices that run IBM Storage Virtualize.

Restriction: Key performance indicators are provided only for IBM Storage FlashSystem 9100 from the IBM Storage FlashSystem family. Key performance indicators are not provided for file storage in Storwize V7000 Unified storage systems.

Procedure

  1. To select a storage system, choose one of the following options from the menu bar:
    Resource Menu bar
    Block storage systems Resources > Block Storage Systems
    File storage systems Resources > File Storage Systems
  2. From the list of storage systems that are displayed, right-click the resource that you want to view and click View Details.
    For example, select a SAN Volume Controller or a Storwize storage system on the Block Storage Systems page, or select a Storwize V7000 Unified storage system on the File Storage Systems page.
  3. In the General section of the resource details page, click Performance.
    The key performance indicators charts are displayed with data that was collected from monitored resources over the last 24 hours. The performance of each monitored resource is charted against the best practice guidelines for IBM Storage Virtualize storage systems.
  4. Optional: If you want to view the performance charts for a period other than the default 24-hour period, change the date for all of the charts. Click Last 24 hours and use the calendar to specify a date.
  5. Optional: Drill down to view detailed information about a specific I/O group, port, or node. Click a resource from the chart's list.

    For example, select the name of an I/O group in the Read Response Time by I/O Group chart to view the average number of milliseconds taken by the I/O group to complete a read operation.

    By default, metrics are shown on the charts for the following time periods:
    • The last 24 hours
    • The same 24-hour period for yesterday
    • The same 24-hour period for the day seven days before today
    If you selected a date from the calendar, the metrics are shown on the charts for the following time periods:
    • The selected date
    • The day before the selected date
    • The day seven days before the selected date