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CloudBackup Feature Guide

OceanStor Dorado V3 Series V300R002

This document is applicable to OceanStor Dorado3000 V3, Dorado5000 V3, Dorado6000 V3, and Dorado18000 V3. It describes the implementation principles and application scenarios of the CloudBackup feature, and explains how to configure and manage CloudBackup.
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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 Backup Plan

Creating a Backup Plan

The storage system executes backup tasks according to the backup plan.

Prerequisites

  • Protected objects have been determined.
  • A repository has been created.

Context

  • A backup plan consists of protected objects (LUNs or LUN consistency groups), a backup policy, and a repository.
  • Backup images are stored in the repository.
  • If a network fault occurs during the backup process, data transfer can be resumed if the network recovers within 24 hours. If the backup process is interrupted for more than 24 hours, the backup task is terminated or fails.
  • Regardless of whether offline transmission is enabled, the repository always records the amount of data to be stored on the S3 storage.
  • If offline transmission is enabled and has not been disabled (that is, the backup data has not been imported to the S3 storage), the backup data occupies the space of the offline storage unit and does not occupy the space of the S3 storage.

Precautions

  • A LUN or LUN consistency group can be added to only one backup plan.
  • If a LUN consistency group has been added to a backup plan, its member LUNs cannot be added to a backup plan again.

Procedure

  1. Choose Data Protection > CloudBackup > Backup and Restoration > Backup Plan.
  2. Click Create.

    The Create Backup Plan dialog box is displayed.

  3. Specify the Name for the backup plan.

    NOTE:
    • The name must be unique.
    • The name contains 1 to 31 characters.
    • The name can contain only letters, digits, underscores (_), periods (.), hyphens (-), plus signs (+), and at signs (@).

  4. (Optional) Add the Description for the backup plan.

    NOTE:

    The description can be left blank or contain up to 255 characters.

  5. Select the desired LUNs or LUN consistency groups and click to add them to Selected LUNs or Selected LUN Consistency Groups. Then click Next.
  6. Configure a backup policy.

    1. Set the Execution Schedule, which can be Periodically or Once.
      • Periodically
        NOTE:

        If Execution Schedule is Periodically, you must set the incremental backup plan. In addition, you can choose to enable periodic full backup as required.

        1. Specify Weeks in a Month. Backup tasks will be performed in these weeks of each month.
        2. Specify Days in a Week. Backup tasks will be performed on these days in each week specified by Weeks in a Month.
        3. (Optional) Specify Excluded Days in a Month. Backup tasks will not be performed on these dates in each month.
          NOTE:

          You cannot select all dates in Excluded Days in a Month.

        4. Set the Execution Time or Execution Period for backup tasks. The system automatically schedules backup tasks at the specified time. You can click to add multiple time points or periods.
        5. (Optional) Enable periodic full backup and set the backup schedule.
          1. Specify Weeks in a Month. Backup tasks will be performed in these weeks of each month.
          2. Specify Days in a Week. Backup tasks will be performed on these days in each week specified by Weeks in a Month.
          3. (Optional) Specify Excluded Days in a Month. Backup tasks will not be performed on these dates in each month.
            NOTE:

            You cannot select all dates in Excluded Days in a Month.

          4. Set the Execution Time or Execution Period for backup tasks. The system automatically schedules backup tasks at the specified time. You can click to add multiple time points or periods.
        NOTE:
        • If both incremental and full backups are scheduled at the same point in time, the system will execute full backup first.
        • If a backup task has not been completed within the specified period, the next backup task will not be started. The system performs the next backup task after the current task is complete.
        • If the Execution Period is set and the duration of a backup task exceeds the range specified by the Execution Period, the backup task will continue until it is complete. If a backup task is in the To be scheduled state, no more backup task will be executed.
        • A higher backup frequency provides more reliable data protection, but requires a longer time and larger space. Set a proper backup plan based on your reliability requirements and service load.
      • Once

        Set the execution time for the backup task in Once. The system will perform a full backup at the specified time.

    2. Set the retention policy for backup images. This can be By Image Count, By Time, or Permanent.
      • By image count
        1. Set the total number of backup images retained for a LUN or LUN consistency group.
          NOTE:

          Once the number of backup images exceeds this value, the system automatically deletes the earliest images (the latest image retained in each year, month, week, or day will not be deleted).

        2. Click Advanced and set the duration for retaining the latest backup image in each year, month, week, or day. To be more specific, for the last xx years, xx months, xx weeks, or xx days from the current time, the latest image in each year, month, week, or day is retained. For example, if the current year is 2018 and you set Retain 3 year(s), latest image in each year, the system will retain the latest images generated in years 2015, 2016, and 2017.
          NOTE:
          • The value range for the total number of retained backup images is 1-100. The default is 90.
          • The value range for the duration of retaining the latest backup image in each year is 0-999. The default is 10.
          • The value range for the duration of retaining the latest backup image in each month is 0-999. The default is 10.
          • The value range for the duration of retaining the latest backup image in each week is 0-9999. The default is 10.
          • The value range for the duration of retaining the latest backup image on each day is 0-99999. The default is 10.
      • By time

        Set the retention period. When the lifespan of a backup image exceeds the retention period, the system automatically deletes the image.

        NOTE:
        • If you set the retention period by day, the value range is 1-9125.
        • If you set the retention period by week, the value range is 1-1300.
        • If you set the retention period by month, the value range is 1-300.
        • If you set the retention period by year, the value range is 1-25.
      • Permanent
    3. Enable or disable backup data compression. Enabling compression saves storage space on the backup storage. If compression is disabled, backup data will be stored in original formats.
    4. Select Retry and specify the Retry Times and Retry Window for failed backup tasks. The Retry Window is the maximum time range for retrying failed backup tasks.
      NOTE:
      • The value range for the Retry Times is 1-10.
      • The value range for the Retry Window is 1-168.
      • If all retries fail, and either the retry times or retry window reaches the specified value (whichever occurs first), the system stops retrying the backup task.
      • If a retry succeeds within the window, the system will not perform more retries.

  7. Click Next.
  8. Select a repository for storing backup images.

    NOTE:
    • You can also click Create Repository in the lower right corner to create one.
    • If you want to use a Teleport device for the first full backup to the object storage on the cloud, select Enable Offline Transmission. After this option is selected, the storage system backs up data from the LUNs or LUN consistency groups to the Teleport device.

  9. Click Next.

    The Summary page is displayed.

  10. Confirm the backup plan information and click Finish.

    The Execution Result page is displayed.

  11. Determine whether to activate the backup plan immediately.

    • If you select Activate Now, the system automatically schedules backup tasks according to the plan.
    • If you deselect Activate Now, the system does not execute the plan. You manually activate the plan in follow-up operations.

  12. Determine whether to run a backup task immediately.

    • If you select Run, the system runs a backup task immediately.
    • If you deselect Run, the system will not run a backup task immediately.

  13. Click OK.

    The Execution Result dialog box is displayed.

  14. Click Close.
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Updated: 2019-07-17

Document ID: EDOC1100067320

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