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Huawei SAN Storage Host Connectivity Guide for SUSE

HUAWEI SAN Storage Host Connectivity Guide for SUSE Linux Servers
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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).
UltraPath

UltraPath

Storage System Configuration

If you use UltraPath, retain the default initiator settings. Do not select Uses third-party multipath software.

Figure 6-4 Initiator setting when UltraPath is used

Host Configuration

Install UltraPath by following instructions in the OceanStor UltraPath for Linux User Guide.

NOTE:

You can log in to Huawei's technical support website (http://support.huawei.com/enterprise/) and enter UltraPath in the search box. Then, select a path from the paths that are automatically displayed to go to the document page. Search for, browse, and download desired documents. To download UltraPath software, click the Software Download tab, and search for and download UltraPath software specific to your product version.

After you install UltraPath, set the trespass policy for LUNs as follows:

NOTE:

This configuration must be performed on all hosts separately. Retain the default settings for other parameters.

  • For UltraPath earlier than 21.2.0, it is recommended that you run the set luntrespass command to disable the trespass policy.
    UltraPath CLI #3 >set luntrespass=off 
    The current configuration will overwrite the configuration of all VLUNs in this array.  
    Are you sure you want to continue? [y,n]: y  
    Succeeded in executing the command.
    The command format is set luntrespass={ on | off } [ array_id=ID | vlun_id={ ID | ID1,ID2... | ID1-ID2 } ]. Table 6-3 describes the key parameters in the command.
    Table 6-3 Parameter description

    Parameter

    Description

    Default Value

    { on | off }

    Trespass policy of LUNs

    • on: Switchover of LUNs' working controller is enabled.
    • off: Switchover of LUNs' working controller is disabled.

    on

    array_id=ID

    ID of the storage array

    You can run the show array command to query the ID of the storage array.

    None

    vlun_id={ ID | ID1,ID2... | ID1-ID2 }

    ID of the virtual LUN

    You can run the show vlun type=all command to query the IDs of all virtual LUNs.

    None

  • For UltraPath 21.2.0 and later, it is recommended that you retain the default settings (the trespass policy is disabled by default).
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Updated: 2019-05-16

Document ID: EDOC1000150158

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