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SmartQoS Feature Guide for File

OceanStor Dorado V3 Series V300R002

This document is applicable to OceanStor Dorado5000 V3, Dorado6000 V3, and Dorado18000 V3. It describes the implementation principles and application scenarios of the SmartQoS (for file) feature, and explains how to configure and manage SmartQoS.
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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Creating a Traffic Control Policy

Creating a Traffic Control Policy

A traffic control policy is a group of I/O classes and their performance goals, telling a storage system what performance targets the I/O classes have and how to achieve those goals.

Context

Two types of traffic control policies are available:

  • Upper-limit traffic control policy: controls the maximum bandwidth and IOPS.
  • Lower-limit traffic control policy: controls the minimum bandwidth and IOPS and maximum latency.

You can configure lower-limit traffic control policies only for file systems with a high I/O priority, and must not change the priorities of the file systems that are working with lower-limit traffic control policies.

Procedure

  1. Choose Provisioning > Resource Performance Tuning > SmartQoS and click the Traffic Control tab page.
  2. Click Create.

    The Create Traffic Control Policy Wizard dialog box is displayed.

  3. In the displayed Set Name dialog box, specify Name and Description for the traffic control policy to be created, and click Next.
  4. In the displayed Set Control Objective dialog box, set the required parameters.

    1. In Template, select a template.
    2. In Control Type, select the I/O characteristic that you want the policy to control.

      The possible I/O characteristics include Read I/O, Write I/O, and Read/Write I/O.

    3. In Control Policy, select the control policy type that you want to set.

      The possible control policy type include Upper limit control and Lower limit control.

    4. In the Control Objective area, set a performance goal that you want this policy to achieve.

      The possible performance goals include IOPS, Bandwidth, and Latency.

    5. Click Next.

  5. In the displayed Set Trigger Policy dialog box, set the required parameters.

    1. In the Started Date text box, set a date from which the traffic control policy starts to run.
    2. In the Execution Period area, set a frequency at which the traffic control policy runs.

      The possible frequencies are:

      • One-off: The traffic control policy runs only on the day specified in Started Date.
      • Weekly: The traffic control policy runs on the day in each week following the day specified in Started Date.
    3. In the Execution Time area, set the time when the traffic control policy starts to run and the duration that it lasts for.
    4. Click Next.

  6. In the displayed Select Control Object dialog box, select the file systems that you want the policy to control from the Available File Systems area, click to add them to the Selected File System area, and click Next.
  7. In the displayed Summary dialog box, check all the attributes that you want to set for the traffic control policy.

    • If all attributes are correct, click Finish.

      The Execution Result dialog box is displayed indicating that the operation succeeded. Click Close.

      The security alert dialog box is displayed indicating that the traffic control policy will be activated. Click OK.

      The Execution Result dialog box is displayed indicating that the operation succeeded. Click Close.

    • If an attribute is wrong, click Previous to reset it.

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Updated: 2019-02-22

Document ID: EDOC1100067330

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