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OceanStor UltraPath for vSphere V100R008C50 User Guide 06

This document covers the functions, features, installation, configuration, upgrade, uninstallation, maintenance, troubleshooting, and FAQs of OceanStor UltraPath for vSphere (UltraPath forvSphere). UltraPath for vSphere is the multipathing software developed by HuaweiTechnologies Co., Ltd (Huawei for short). The document aims at helping users to be fully familiar with UltraPath for vSphere and its use.
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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).
Setting Disk Array Parameters

Setting Disk Array Parameters

This section describes how to set parameters of a specified disk array.


After storage array parameters settings, parameters of the VLUNs from the storage array will be automatically configured. Aggregation VLUNs do not be automatically configured. In the mean time, after storage array parameters settings, you can configure parameters for a VLUN from the storage array. However, subsequent storage array parameters settings will not apply to the VLUN.


  1. In the Device area on the left of the vCenter management interface, click Disk Array Management to enter the array management page.
  2. Select the disk array that you want to set.
  3. At the upper right corner, click Set.
    The Disk Array Parameter Settings dialog box is displayed.
  4. In the Common Settings area, set the basic parameters of UltraPath for vSphere. The following table describes the parameters:




    Load balancing mode

    Load balancing mode of UltraPath for vSphere.

    The value is either Within controller or Between controllers.

    [Default value]

    Within controller


    Within controller

    Load balancing algorithm

    Path selection algorithm of UltraPath for vSphere.

    The value can be Minimum queue depth, Minimum task, or Round robin.

    [Default value]

    Minimum queue depth


    Minimum queue depth

    LUN trespass

    Enabling or disabling LUN trespass.

    The value can be either Enable or Disable.

    [Default value]




  5. Set the number of consecutive I/Os for load balancing.
    1. Click Continuous I/O Quantity Settings next to Load balancing algorithm.
      The Continuous I/O Quantity dialog box is displayed.
    2. In Load balancing continuous I/O quantity, set the number of consecutive I/Os.

      The value ranges from 1 to 10,000. The default value is 1.

    3. Click OK.
  6. Optional: Set the advanced parameters of the disk array.
    1. Click Advanced Settings.
      The Advanced Settings dialog box is displayed.
    2. In Max. I/O timeout period (s), set the maximum I/O timeout period.

      The value ranges from 1 to 2,592,000. The default value is 1,800.

    3. Click OK.
  7. Click OK.
Updated: 2019-03-06

Document ID: EDOC1000105152

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