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SmartMulti-Tenant Feature Guide for Block

OceanStor V5 Series V500R007

This document is applicable to OceanStor 5110 V5, 5110F V5, 5300 V5, 5300F V5, 5500 V5, 5500F V5, 5600 V5, 5600F V5, 5800 V5, 5800F V5, 6800 V5, 6800F V5, 18500 V5, 18500F V5, 18800 V5, and 18800F V5. This document describes the implementation principles and application scenarios of the SmartMulti-Tenant feature. Also, it explains how to configure and manage SmartMulti-Tenant.
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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 Mapping View

Creating a Mapping View

This operation enables you to create a mapping view and manage the mapping relationship between multiple host groups and LUN groups by adding them to the mapping view.

Context

  • A host group can be added to a maximum of 64 mapping views.
  • A LUN group can be added to a maximum of 64 mapping views.
  • A port group can be added to a maximum of 64 mapping views.

Based on the ports used by mapping views, mapping views can be classified into LUN mapping and LUN masking.

  • LUN mapping: A LUN is bound with the World Wide Port Name (WWPN) or iSCSI Qualified Name (IQN) of a host port to establish a one-to-one or N-to-one connection and access relationship with the host port. A host can identify the same LUN regardless of whichever port on the storage system is connected to the host.
  • LUN masking: A LUN is bound with a front-end port on the storage system. The LUN that a host can access varies with the storage port connected to the host.

Super administrators, administrators, SAN resource administrators, and vStore administrators can create a mapping view.

Procedure

  1. Log in to DeviceManager.
  2. Go to the host page.

    The operation path varies with user types:

    • System user: Click vStore, select the desired vStore, and click Details to go to the vStore view. Choose Provisioning > Mapping View.
    • vStore user: In the vStore view, choose Provisioning > Mapping View.

  3. Click Create.

    The Create Mapping View dialog box is displayed.

  4. Set basic properties for the mapping view.

    1. In the Name text box, enter a name for the mapping view.
    2. (Optional) In the Description text box, add the mapping view description.

  5. Add a host group to the mapping view.

    1. In Host Group, click .

      The Select Host Group dialog box is displayed.

      NOTE:

      If the service requires a new host group, click Create to create one.

    2. From the host group list, select the host group you want to add to the mapping view.
    3. Click OK.

  6. Add a LUN group to the mapping view.

    1. In LUN Group, click .

      The Select LUN Group dialog box is displayed.

      NOTE:
      • If the service requires a new LUN group, click Create to create one.
      • By default, the Show only the LUN groups that do not belong to any mapping view check box in the bottom left corner of the dialog box is selected to facilitate LUN group locating.
    2. (Optional) Select Set host LUN ID. In Start ID, select an ID.
      NOTE:
      • A host LUN ID is an ID allocated by the storage system to a LUN mapped to a host.
      • Starting from the selected ID, the system will automatically assign a unique host LUN ID to each LUN in the selected LUN group.
      • If you do not select Set host LUN ID and there is no other mapped LUN in the host, the system will automatically assign a unique host LUN ID (starting from 0) to each LUN in the selected LUN group by default.
    3. From the LUN group list, select the LUN group you want to add to the mapping view.
    4. Click OK.

  7. (Optional) Add a port group to the mapping view.

    NOTE:

    This operation is required if the mapping view type is LUN masking.

    1. Select Port Group
      NOTE:

      If a port group is added to the mapping view, LUNs of a specified LUN group use the ports of the port group to communicate with the corresponding hosts of the host group. If no port group is added to the mapping view, available ports are randomly used.

    2. Click .

      The Select Port Group dialog box is displayed.

      NOTE:

      If the service requires a new port group, click Create to create one.

    3. From the port group list, select the port group you want to add to the mapping view.
    4. Click OK.

  8. Confirm the creation of the mapping view.

    1. Click OK.

      The security alert dialog box is displayed.

      NOTE:

      If multiple hosts are added to one same mapping view, it is possible that multiple hosts write data to the same LUN, which may cause data damage or inconsistent. You are advised to install cluster management software on application servers.

    2. Carefully read the content in the dialog box. Then select I have read and understand the consequences associated with performing this operation.
    3. Click OK.

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

    4. Click Close.

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Updated: 2019-07-11

Document ID: EDOC1000181478

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