The Performance tab is supported for all storage systems and APEX storage for AWS. It is similar to the Performance tab for Pools discussed earlier in this paper. The top portion of this tab is the Object Activity and it shows key performance metrics for storage objects sorted by their 24-hour averages. The result is that the user immediately sees the top contenders for resources on the system.

The following metrics are displayed with a 24-hour trend line and the 24-hour average. It is sorted to show objects with the highest averages over the last 24 hours allowing the user to immediately see the top contenders for resources on the system.

• Latency (PowerStore, PowerMax/VMAX, Unity XT family, XtremIO), Volume Latency (SC Series)
• IOPS (all platforms)
• Bandwidth (all platforms)

Note:

• For PowerMax or VMAX systems, Infrastructure Observability displays these performance metrics at the Storage Group level.
• For PowerStore, the Object Activity charts show data for File Systems and either Individual Volumes or Volume Groups.

The remaining charts show a 24-hour history of key system level performance metrics with an overlay of historic seasonality. The metrics vary slightly by product type:

• Latency (all platforms except PowerVault)
• IOPS (all platforms)
• Backend IOPS (for Unity XT family - if multiple storage tiers exist, each tier has a separate chart)
• Bandwidth (all platforms)
• Storage Processor Utilization (Unity XT family) / Controller Utilization (SC Series) / CPU Utilization (XtremIO, PowerScale or Isilon, and APEX File Storage for AWS)
• Client (PowerScale or Isilon and APEX File Storage for AWS)
• Protocol: Latency (PowerScale or Isilon and APEX File Storage for AWS)
• Protocol: IOPS (PowerScale or Isilon and APEX File Storage for AWS)
• Protocol: Bandwidth (PowerScale or Isilon and APEX File Storage for AWS)

Note: For the Unity XT family, the system performance page has both a Past 24 Hours view and a Forecast view. Performance forecasting is only supported for the Unity XT family and is discussed below.

For additional performance metrics, the user can select the Create Report button in the upper right corner of the Object Activity window to access the Report Browser.

Observability identifies performance anomalies on all system level performance charts for all system types. A shaded blue area identifies performance anomalies. For Unity XT family, PowerStore, PowerMax, PowerScale, and PowerFlex systems, Observability identifies areas of performance impact on the Latency chart. A pink shaded area identifies performance impacts. Similar to the latency chart for Unity XT storage pools, the user can select the DETAILS button to see the most likely competing workloads causing the impact.

For APEX File Storage for AWS, Unity XT family, PowerStore, PowerScale, and PowerVault systems, configuration changes are identified as rectangles along the X-axis of the charts. Selecting the configuration change rectangle opens the Storage Configuration Changes window which contains details of the changes. By identifying when configuration changes occur, Observability helps the user potentially correlate configuration changes in the environment to performance impacts.

Selecting any area in the Latency, IOPS, and Bandwidth charts for any system type (except APEX Block Storage for AWS and PowerFlex) displays the top five most active storage objects during that time period in the left side of the chart. Objects would be LUNs or file systems for Unity XT family, volumes or file systems for PowerStore, volumes for SC Series, PowerVault and XtremIO, storage groups for PowerMax or VMAX, and nodes for PowerScale and APEX File Storage for AWS. In the example below, the area around the second impact with the performance anomaly is highlighted and it shows the most active objects in the left side of the screen. For PowerStore, Unity XT family, and PowerVault, Observability also provides the Best Match tab identifying objects whose performance characteristics most closely correlate to the selected range in the performance chart. The Best Match tab is shown in the IOPS chart below.

As with Pools performance, the user can select the Details button and see possible causes and resource contention for performance impact.

Note: Resource contention is supported for Unity XT family systems only.

The Unity XT family supports performance forecasting charts. By selecting the Forecast radio button, users can see SP Utilization historical trends and forecasting along with predicted date to reach maximum. This allows users to properly balance and plan future workload requirements.