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SmartQoS Feature Guide 11

OceanStor 5300 V3, 5500 V3, 5600 V3, 5800 V3, and 6800 V3 Storage System V300R003

This document describes the implementation principles and application scenarios of theSmartQoS feature. Also, it explains how to configure and manage SmartQoS.
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Monitoring Application Performance

Monitoring Application Performance

The storage system's built-in performance monitoring function provides visibility into object performance. This function helps know the service level agreement (SLA) requirement of each application, and adjust the performance goals of SmartQoS accordingly.

Procedure

  1. Enable and set performance monitoring.
    1. Choose Settings > Performance monitoring settings.
    2. Select Parameter Settings and set performance monitoring parameters as follows:

      NOTE:

      If Status of performance monitoring is Enabled, click Disabled before you set the following parameters.

      • In Sampling interval of real-time statistics collection(s):, set the interval for sampling performance data.
      • In Sampling interval of historical statistics collection(s):, set the duration of performance monitoring.
      • Select Save monitoring data on the device.

    3. Click Enabled to enable performance monitoring.

      The Execution Result dialog box is displayed.

    4. Click Close.

      Status of the performance monitoring function changes to Enabled.

  2. Monitor LUN or file system service performance.
    1. Choose Monitor > Performance Monitoring Settings.
    2. On the Performance Monitoring Settings page, set the objects that you want to monitor.

      1. In the Object Type list of the Statistical Object area, choose LUN or File System.
      2. In the LUN node, select the LUNs or file systems that you want to monitor.
        NOTE:

        The data of an application resides on one or more LUNs or file systems. To monitor the performance of an application, in this step you are advised to choose the LUNs or file systems that store the data of the specific application.

      3. In the Statistical indicator area, select the objects that you want to monitor.
        You are advised to select Block Bandwidth (MB/s) or Total IOPS (IO/s). On the Performance monitoring page, the selected objects are displayed.
        NOTE:
        • In the left of the Performance monitoring page, you can select to view the performance statistics of specific objects on a single charts.
        • In the left of the Performance monitoring page, you can select to view the performance statistics of specific objects on multiple charts.
        • If you view the performance statistics of specific objects on a single charts, in Data type list choose Advanced items in order to get a more accurate performance monitoring result.
        • If you view the performance statistics of specific objects on a single charts, in Percentage (%) list of the performance statistics of specific objects on a single charts page, set a scale to display the performance monitoring result.

Result

On the Sampling interval of real-time statistics collection(s) page, a line graph shows the LUN performance by application.

By monitoring LUN performance, you can see how each application occupies storage system resources. Based on the monitoring result, you can then judge whether the performance of an application at the current time or during a certain period is lower or higher than the preset performance goal.
  • If the performance is lower than the goal, you can use SmartQoS to limit the performance of other applications.
  • If the performance is higher than the goal, you can use SmartQoS to limit the performance of this application.
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Updated: 2018-09-03

Document ID: EDOC1000084215

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