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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).
Array Management

Array Management

You can use UltraPath for vSphere to view and set path status and disk array–related parameters.

Viewing Array Information

This section describes how to view details about disk arrays on the storage management page of UltraPath for vSphere.

Procedure

  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 a disk array and view its details in the Disk Array Details area.

    Parameter

    Description

    Value

    ID

    ID of the disk array.

    [Example]

    0

    Name

    Name of the disk array.

    [Example]

    SN_2004

    SN

    Serial No. of the disk array.

    [Example]

    21000022a10ac1bf

    Manufacturer

    Manufacturer of the disk array.

    [Example]

    HUAWEI

    Model

    Model of the disk array.

    [Example]

    S5500T

    NOTE:
    In the upper right part of the storage management page, click Refresh to view information about disk arrays managed by UltraPath for vSphere.

Controller Management

Controller management includes viewing controller information and setting controllers.

Viewing Controller Information

This section describes how to view information about disk array controllers.

Procedure

  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 whose controller information you want to view.
  3. In the Disk Array Details area, click the Controller tab to view detailed information about a controller. The following table describes related parameters:

    Parameter

    Description

    Value

    ID/Name

    ID or name of the controller.

    [Example]

    0A

    Status

    Status of the controller.

    The value can be either Enable or Disable.

    [Example]

    Enabled

    Location

    Location of the controller.

    [Default value]

    Local Device

    [Example]

    Local Device

Setting a Controller

This section describes how to set a disk array controller status.

Procedure

  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. Set the controller status.
    1. In the Disk Array Details area, click the Controller tab.
    2. Under Disk Array Details, select the controller that you want to set.
    3. On the right of the Disk Array Details area, click Status Settings.
      The Status Settings dialog box is displayed.
    4. In Status Settings, set the controller status.

      • Enable: enables the controller.
      • Disable: disables the controller.

    5. Click OK.
Setting the Remote Controller Node of a VIS Disk Array

This section describes how to set the remote controller node of a VIS disk array so that host I/Os are delivered preferentially from the local VIS node, therefore shortening latency.

Context

If UltraPath for vSphere manages a VIS disk array, the Remote Node Settings option is available.
NOTE:
UltraPath for vSphere supports remote active-active VIS disk arrays. In this mode, the I/O processing latency on the local VIS node is much smaller than that on the remote one. Therefore, UltraPath for vSphere prefers the local VIS node for delivering I/Os. The remote VIS node is used only if the local node experiences a path fault.

Procedure

  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. Set the remote node of the VIS disk array.
    1. Select the controller you want to set.
    2. On the right of the Disk Array Details area, click Remote Node Settings.
      The Remote Node Settings dialog box is displayed.
    3. In Remote Node Settings, set the controller's location information.
    4. Click OK.

Physical Path Management

Physical path management includes viewing physical path information, enabling/disabling physical paths, resetting physical path status, checking path health status, and deleting faulty physical paths.

Viewing Physical Path Information

This section describes how to view the detailed information about a physical disk array path.

Procedure

  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 view.
  3. In the Disk Array Details area, click Physical Path tab to view detailed information about a physical path. The following table describes related parameters:

    Parameter

    Description

    Value

    ID

    ID of the physical path.

    [Example]

    0

    Initiator Port

    Name of an initiator port.
    NOTE:
    For some arrays such as the S2600 and S5500, the initiator ports are displayed as the initiator port IDs in the SCSI address.

    [Example]

    iqn.1998-01.com.vmvare:localhost-51a7d306

    Controller

    ID or name of a controller.

    [Example]

    0A

    Port ID

    Location of the port.

    [Example]

    CTE0.B.H0

    Target Port

    Name of a target port.
    NOTE:
    For some arrays such as the S2600 and S5500, the initiator ports are displayed as the initiator port IDs in the SCSI address.

    [Example]

    iqn.2006-08.com.huawei:oceanstor:21000022a10ac1bf::129.97.50.2-1020400

    Status

    Working status of a physical path.

    The value can be Normal, Fault, I/O discrete error degradation, Intermittent failure degradation, High latency degradation, Disable, or --.

    [Example]

    Normal

    Check State

    Health status of the physical path displayed when you initiate a query.

    [Example]

    Checking

    Port Type

    Type of a link port.

    [Example]

    iSCSI

    I/O Retry Count

    Number of I/O retry attempts.

    [Example]

    0

    Path Fault Count

    Number of times for which a path becomes faulty.

    [Example]

    0

    Max. I/O Latency (ms)

    Maximum average I/O latency within a sampling period.

    [Example]

    200

    Min. I/O Latency (ms)

    Minimum average I/O latency within a sampling period.

    [Example]

    1

    Average. I/O Latency (ms)

    Average I/O latency within a sampling period.

    [Example]

    1

Enabling or Disabling a Physical Path

This section describes how to enable or disable a physical path of a storage system.

Procedure

  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. Enable or disable a physical path of the disk array.
    1. In the Disk Array Details area, click the Physical Path tab.
    2. Under Disk Array Details, select the physical path you want to set.
    3. On the right of the Disk Array Details area, click Enable or Disable to enable or disable the physical path.

      NOTE:
      The Enable and Disable options are available only when the path type is not SCSI. If the path type is iSCSI, you can Enable or Disable the path in the Status Settings of the path's controller.

    4. Click OK.
Resetting the Status of a Physical Path

This section describes how to reset a physical path status of a disk array.

Procedure

  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. Reset a path status.
    1. In the Disk Array Details area, click the Physical Path tab.
    2. Select the physical path you want to reset.
    3. On the right of the Disk Array Details area, click Reset Link Status.
      The Confirm dialog box is displayed.
    4. Confirm the information and click OK.
Checking the Health Status of a Path

This section describes how to check the health status of a path.

Procedure

  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. Check the health status of a path.
    1. In the Disk Array Details area, click the Physical Path tab.
    2. Select the physical path whose health status you want to check.
    3. On the right of the Disk Array Details area, click Health Check.
      The Health Check dialog box is displayed.
      NOTE:

      Read the instructions and precautions in the Health Check area.

    4. Click OK.
      The Confirm dialog box is displayed.
    5. Confirm the information and click OK.
      The Result dialog box is displayed.
    6. Click OK.
Deleting a Faulty Physical Path

This section describes how to delete a faulty physical path.

Procedure

  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. Delete a faulty physical path.
    1. In the Disk Array Details area, click the Physical Path tab.
    2. Select the faulty physical path you want to delete.
    3. On the right of the Disk Array Details area, click Delete.
      The Confirm dialog box is displayed.
    4. Confirm the information and click OK.
      The Result dialog box is displayed.
    5. Click OK.

Virtual LUN Management

Virtual LUN management includes viewing virtual LUN information and setting virtual LUNs.

Viewing Virtual LUN Information

This section describes how to view the detailed information about a virtual LUN.

Procedure

  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 whose controller information you want to view.
  3. In the Disk Array Details area, click the LUN tab to view the detailed information about a virtual LUN. The following table describes related parameters:

    Parameter

    Description

    Value

    ID

    ID allocated by UltraPath for vSphere to the virtual LUN.

    [Example]

    1

    Drive Letter

    Name of the disk that corresponds to the virtual LUN on its ESX system.

    [Example]

    naa.60022a11000ac1bf0cb9754a0000016e

    LUN Name

    Name of the virtual LUN.

    NOTE:
    The name is specified when the LUN is created on its disk array.

    [Example]

    LUN_01

    Type

    Type of the virtual LUN.

    The value can be Common, or Hypermetro.

    [Example]

    Common

    WWN

    WWN of the virtual LUN.

    [Example]

    60022a11000ac1bf0cb9754a0000016e

    Dev Lun ID

    ID of the storage system LUN corresponding to the virtual LUN.

    [Example]

    1

    DataStor

    ID of the datastore that the virtual LUN belongs to on its ESX system.

    [Example]

    datastore_1

    Capacity

    Capacity of the virtual LUN.

    [Example]

    10.00 GB

    Status

    Working status of the virtual LUN.

    The value can be Normal, Fault, Degraded, Disabled, or --.

    NOTE:
    If the LUN on the array is in Fault state while the virtual LUN on the host is in Normal state (viewed by using UltraPath), the virtual LUN can be accessed by the host.

    [Example]

    Normal

    Working Controller

    Working Controller of the virtual LUN.

    [Example]

    0A

    Owning Controller

    Owning Controller of the virtual LUN.

    [Example]

    0A

  4. Optional: Check path information about the virtual LUN.
    1. Click Details under Path.
      The Path dialog box is displayed.
    2. In the Path List area, view the detailed information about the virtual LUN. The following table describes related parameters:

      Parameter

      Description

      Value

      ID

      ID of the physical path.

      [Example]

      0

      Name

      Name of the running HBA.

      [Example]

      vmhba32

      Initiator Port

      Name of an initiator port.

      [Example]

      iqn.1998-01.com.vmvare:localhost-51a7d306

      Controller

      ID or name of a controller.

      [Example]

      0A

      Port ID

      Location of the port.

      [Example]

      CTE0.B.H0

      Target Port

      Name of a target port.

      [Example]

      iqn.2006-08.com.huawei:oceanstor:21000022a10ac1bf::129.97.50.2-1020400

      Status

      Working status of a physical path.

      The value can be Normal, Fault, BUSY degradation, I/O discrete error degradation, Intermittent failure degradation, I/O timeout degradation, High latency degradation, Disable, or --.

      [Example]

      Normal

      Port Type

      Type of a link port.

      [Example]

      iSCSI

Setting a Virtual LUN

This section describes how to set a virtual LUN.

Procedure

  1. In the Device area on the left of the vCenter management interface, click VLUN Management to enter the array management page.
  2. Select the virtual LUN you want to set.
  3. Set the general parameters of the LUN.
    1. At the upper right corner, click Set.

      The LUN Parameter Settings dialog box is displayed.

    2. In the Common Settings area, set the basic parameters of UltraPath for vSphere. The following table describes the parameters:

      Parameter

      Description

      Value

      Load balancing mode

      Load balancing mode of UltraPath for vSphere.

      The value is either Within controller or Between controllers.

      [Default value]

      Within controller

      [Example]

      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

      [Example]

      Minimum queue depth

      LUN trespass

      Enabling or disabling LUN trespass.

      The value can be either Enable or Disable.

      [Default value]

      Enable

      [Example]

      Enable

    3. Click OK.
  4. 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.
  5. 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.
    3. Click OK.

    NOTE:
    To clear LUN parameters, click Clear.

Setting a Virtual HyperMetro LUN

This section describes how to set a virtual HyperMetro LUN.

Procedure

  1. In the Device area on the left of the vCenter management interface, click VLUN Management to enter the array management page.
  2. Select the virtual HyperMetro LUN you want to set.
  3. At the upper right corner, click Set.

    The LUN Parameter Settings dialog box is displayed.

  4. On the LUN Parameter Settings dialog box, click Advanced Setting.
    The Advanced Settings dialog box is displayed.
  5. In the HyperMetro LUN Settings area, set the parameters of virtual HyperMetro LUN. The following table describes the parameters:

    Parameter

    Description

    Value

    HyperMetro Mode

    HyperMetro working mode.

    The value can be either Priority or Balance.

    [Default value]

    Priority

    [Example]

    Priority

    Primary Array Sn

    The SN of the primary array.

    [Default value]

    None

    [Example]

    210235G6GRZ0B5000024

    Split Size

    Fragment size.

    The value ranges from 512 bytes to 1 GB.

    [Default value]

    128MB

    [Example]

    128MB

  6. Click OK.
Managing I/O Count Information

You can query, refresh, and clear the I/O count information.

Querying I/O Count Information

This operation enables you to query the I/O count of all virtual LUNs or on logical paths of a specific virtual LUN. The I/O count information includes the error I/O count, queue I/O count, error command count, and queue command count.

Procedure

  1. In the Device area on the left of the vCenter management interface, click VLUN Management to enter the array management page.
  2. Query the I/O count of virtual LUNs.

    • Query the I/O count of all virtual LUNs.
      1. In the function pane, click I/O Count.

        The I/O Count dialog box is displayed.

      2. In the I/O Count dialog box that is displayed, view count information about all virtual LUNs. Related parameters are explained in the following table.

        Parameter

        Description

        Value

        Error I/O Count

        The number of error I/Os returned to UltraPath by a virtual LUN

        [Example]

        1

        Queue I/O Count

        The number of I/Os not returned to UltraPath by a virtual LUN

        [Example]

        1

        Error Command Count

        The number of UltraPath internal commands that receive execution errors from a virtual LUN

        [Example]

        1

        Queue Command Count

        The number of UltraPath internal commands that have not received execution results from a virtual LUN

        [Example]

        1

    • Query the I/O count on logical paths of a specific virtual LUN.
      1. In the function pane, select the virtual LUN that you want to query.
      2. Click the I/O Count tab page and view the I/O count information about this virtual LUN.

        Parameter

        Description

        Value

        Error I/O Count

        The number of error I/Os returned to UltraPath by a virtual LUN

        [Example]

        1

        Queue I/O Count

        The number of I/Os not returned to UltraPath by a virtual LUN

        [Example]

        1

        Error Command Count

        The number of UltraPath internal commands that receive execution errors from a virtual LUN

        [Example]

        1

        Queue Command Count

        The number of UltraPath internal commands that have not received execution results from a virtual LUN

        [Example]

        1

Refreshing I/O Count Information

This operation enables you to query the latest I/O count information.

Procedure

  1. In the Device area on the left of the vCenter management interface, click VLUN Management to enter the array management page.
  2. In the function pane, click I/O Count.

    The I/O Count dialog box is displayed.

  3. Click Refresh. Then you can view the latest I/O count information on the page.
  4. Click OK. The operation is complete.
Clearing I/O Count Information

This operation enables you to clear all the I/O count information of virtual LUNs.

Procedure

  1. In the Device area on the left of the vCenter management interface, click VLUN Management to enter the array management page.
  2. In the function pane, click I/O Count.

    The I/O Count dialog box is displayed.

  3. Click Clear.

    The Information dialog box is displayed, indicating that the operation succeeded.

  4. Click OK.

    The I/O Count dialog box is displayed.

  5. Click OK. The operation is complete.
Managing I/O Latency Information

You can query and refresh the I/O latency information.

Querying I/O Latency Information

This operation enables you to query the latest I/O latency, max I/O latency, and average I/O latency of all virtual LUNs or on logical paths of a specific virtual LUN.

Procedure

  1. In the Device area on the left of the vCenter management interface, click VLUN Management to enter the array management page.
  2. Query the I/O latency of virtual LUNs.

    • Query the I/O latency of all virtual LUNs.
      1. In the function pane, click I/O Latency.

        The I/O Latency dialog box is displayed.

      2. In the I/O Latency dialog box that is displayed, view latency information about all virtual LUNs. Related parameters are explained in the following table.

        Parameter

        Description

        Value

        Latest I/O Latency

        Latency of the latest I/O returned from a virtual LUN to UltraPath

        The latency unit is millisecond.

        [Example]

        31

        Max I/O Latency

        Maximum latency among I/Os returned from a virtual LUN to UltraPath

        The latency unit is millisecond.

        [Example]

        45

        Average I/O Latency

        Average latency of I/Os returned from a virtual LUN to UltraPath in the last one minute

        The latency unit is millisecond.

        [Example]

        15

    • Query the I/O latency on logical paths of a specific virtual LUN.
      1. In the function pane, select the virtual LUN that you want to query.
      2. Click the I/O Latency tab page and view the I/O latency information about this virtual LUN.

        Parameter

        Description

        Value

        Latest I/O Latency

        Latency of the latest I/O returned from a virtual LUN to UltraPath

        The latency unit is millisecond.

        [Example]

        31

        Max I/O Latency

        Maximum latency among I/Os returned from a virtual LUN to UltraPath

        The latency unit is millisecond.

        [Example]

        45

        Average I/O Latency

        Average latency of I/Os returned from a virtual LUN to UltraPath in the last one minute

        The latency unit is millisecond.

        [Example]

        15

Refreshing I/O Latency Information

This operation enables you to query the latest I/O latency information.

Procedure

  1. In the Device area on the left of the vCenter management interface, click VLUN Management to enter the array management page.
  2. In the function pane, click I/O Latency.

    The I/O Latency dialog box is displayed.

  3. Click Refresh. Then you can view the latest I/O latency information on the page.
  4. Click OK. The operation is complete.
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Updated: 2019-03-06

Document ID: EDOC1000105152

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