No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search

Reminder

To have a better experience, please upgrade your IE browser.

upgrade

SmartMigration Feature Guide

OceanStor Dorado V3 Series V300R002

This document is applicable to OceanStor Dorado3000 V3, Dorado5000 V3, Dorado6000 V3 and Dorado18000 V3. This document describes the implementation principles and application scenarios of the SmartMigration feature. Also, it explains how to configure and manage SmartMigration.
Rate and give feedback:
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 SmartMigration Task (Applicable to V300R002C20 and Later)

Creating a SmartMigration Task (Applicable to V300R002C20 and Later)

SmartMigration achieves full replication of source LUN data to the target LUN. After the replication is complete, the target LUN takes over all services from the source LUN and replaces the source LUN.

Prerequisites

  • The storage system has available source LUNs and target LUNs, and those LUNs are normal.
  • The target LUN capacity is not smaller than the source LUN capacity.
  • No value-added services exist on the source LUNs or target LUNs.

Precautions

  • LUNs that have been mapped to the application server cannot be configured as target LUNs in any SmartMigration task.
  • LUNs that are being migrated cannot be configured as source LUNs or target LUNs in another SmartMigration task.

Procedure

  1. Choose Provisioning > Resource Performance Tuning > SmartMigration.
  2. Click Create.

    The Create SmartMigration Task Wizard dialog box is displayed.

  3. Select the creation mode for the target LUN and establish the pair relationship between the source and target LUNs.

    You can create the target LUN in either Manual or Automatic mode.

    • Manual: You must manually select a target LUN that matches the source LUN.

      If you use Manual mode, perform the following operations:

      1. Select Manual and click Next.
      2. Select the source and target LUNs and click Add to Pairs.

        The pair relationship between the source and target LUNs is created and displayed in the Pairs area.

      3. Click Next.

        The Set Properties page is displayed.

    • Automatic: The system automatically creates a target LUN that matches the source LUN.

      If you use Automatic mode, perform the following operations:

      1. Select Automatic and click Next.
      2. Select the source LUN and click Next.

        The storage system automatically creates a target LUN in the storage pool to which the source LUN belongs.

      3. You can click the items in the list to modify the parameters of the target LUN. Table 3-4 describes the parameters.
        Table 3-4 Target LUN parameters

        Parameter

        Description

        Setting

        Owning Storage Pool

        Storage pool where the target LUN resides.

        [Example]

        StoragePool001

        Target LUN Name

        Name of the target LUN.

        [Example]

        targetLun_1708211200280

        Capacity

        Capacity of the target LUN.

        [Example]

        10.00 GB

        Application Type

        Type of the application used by the target LUN.

        [Example]

        Databases

      4. Click Browse under Application Type. The Application Type window is displayed. Table 3-5 lists the application type parameters.
        Table 3-5 Application type parameters

        Parameter

        Description

        Setting

        Name

        Name of a newly created application type.

        [Value range]

        • The name must be unique.
        • The name can contain only letters, digits, periods (.), underscores (_), and hyphens (-).
        • The value contains 1 to 31 characters.

        [Example]

        Oracle_OLAP

        ID

        ID of an application type.

        [Example]

        0

        Application Request Size

        I/O size required by the application type. The value can be 4 KB, 8 KB, 16 KB, 32 KB, 64 KB, or > 64 KB.

        [Example]

        4 KB

        SmartCompression

        Whether to enable SmartCompression.

        After this function is enabled, data is compressed automatically to save storage space.

        [Example]

        Enable

        SmartDedupe

        Whether to enable SmartDedupe.

        After this function is enabled, duplicate data blocks are deleted to save storage space and increase the service life of disks.

        [Example]

        Enable

        Applied to the selected target LUNs

        Whether the function of applying configurations to the selected target LUNs is enabled.

        If this function is enabled, you can select target LUNs in a storage pool and set the application type for the selected target LUNs in one go.

        [Example]

        Enable

        Applied to all target LUNs on the current page

        This parameter enables you to apply this function to all target LUNs.

        After the function is enabled, the application type of all target LUNs on the current page in a storage pool can be set in a unified manner.

        [Example]

        Enable

        Applied to all target LUNs not configured with application types on the current page

        This parameter enables you to apply this function to all target LUNs of which application type is not set.

        After this function is enabled, the application type of all target LUNs of which application type is not set on the current page in a storage pool can be set in a unified manner.

        [Example]

        Enable

      5. Click OK. The application type modification is complete.
      6. Click Next.

        The Set Properties page is displayed.

  4. Set the properties of a SmartMigration task.

    1. Select the split mode of the SmartMigration task.
      • Automatically Split

        After data synchronization, the system automatically performs splitting. Then, the migration is complete.

      • Manually Split

        After data synchronization, perform splitting manually. Then, the migration is complete.

    2. Set the data migration speed for the SmartMigration task.
      1. Set Migration Speed under Default Time.
        • Low

          Migration takes a long time. The low speed is applicable when the system service load is heavy.

          The migration speed ranges from 0 MB/s to 5 MB/s.

        • Medium

          Migration takes a relatively short period. The medium speed is applicable when the system service load is relatively heavy.

          For Dorado3000 V3, the speed rages from 5 MB/s to 10 MB/s. For other models, the speed ranges from 10 MB/s to 20 MB/s.

        • High

          Migration takes a short period. The high speed is applicable when the system service load is relatively light.

          For Dorado3000 V3, the speed ranges from 10 MB/s to 20 MB/s. For Dorado5000 V3 (SAS), the speed ranges from 20 MB/s to 35 MB/s. For Dorado5000 V3 (NVMe), Dorado6000 V3, and Dorado18000 V3, the speed ranges from 50 MB/s to 70 MB/s.

        • Highest

          Migration takes the shortest period. The highest speed is applicable when the system service load is the lightest.

          If no host is delivering I/Os, the migration speed is higher than 100 MB/s. If any hosts are delivering I/Os, the maximum migration speed is about 80 MB/s. (For Dorado3000 V3, the speed ranges from 10 MB/s to 20 MB/s).

        NOTE:
        • The speed is affected by the LUN read and write performance and the link bandwidth.
        • A high migration speed imposes greater impact on the host service performance. Performing synchronization at the Highest speed may cause overloaded services and interruption of SmartMigration during synchronization. You are advised to use the highest speed when no service is running on hosts.
      2. Optional: Enable Specified Time. Set Date, Start Time, and Duration when data is migrated, as well as Migration Speed within the specified duration.
        NOTE:
        • Details about how to set Migration Speed within the specified duration is the same as that within the default duration.
        • Time not included in Specified Time is Default Time.
    3. Click Next.

  5. Confirm the creation of the SmartMigration task.

    1. Verify the SmartMigration task information and click Finish.

      The Warning dialog box is displayed.

      NOTE:

      The Warning dialog box is displayed only in Manual mode and is not displayed in Automatic mode.

    2. Read the contents of the Warning dialog box and select I have read and understand the consequences associated with performing this operation.
    3. Click OK.

      A dialog box is displayed indicating that the operation was successful.

    4. Click Close.

Translation
Download
Updated: 2019-07-17

Document ID: EDOC1100049155

Views: 9123

Downloads: 80

Average rating:
This Document Applies to these Products
Related Version
Related Documents
Share
Previous Next