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OceanStor 9000 V300R006C00 File System Feature Guide 12

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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).
Configuring a Directory Snapshot

Configuring a Directory Snapshot

You can manually create directory snapshots or create a periodic directory snapshot policy to automatically create directory snapshots.

Checking a License File

Each value-added feature requires a license file for activation. Before configuring a value-added feature, ensure that its license file is valid for the feature.

Procedure

  1. Log in to DeviceManager.
  2. Choose Settings > License Management > Active License.
  3. In the middle information pane, verify the information about active license files and confirm whether to include this feature.

    If no license is available, buy and import a license file.

Creating a Directory Snapshot

You can obtain a point-in-time data copy of a source directory by manually creating a snapshot. The snapshot is available immediately after being created. Data reads on the snapshot have no impact on the source directory data.

Prerequisites

One or more directories have been created in the storage system.

Procedure

  1. Log in to DeviceManager.
  2. Choose Data Protection > Snapshot > Snapshot.
  3. Create a directory snapshot.
    1. On the Snapshot tab page, click Create.

      The Create Snapshot dialog box is displayed.

    2. In Directory, select a directory for which you want to create a snapshot.
    3. In Name, enter a name for the snapshot that you want to create.

      NOTE:
      • The snapshot name can contain only letters, digits, underscores (_), periods (.), and hyphens (-).
      • The snapshot name must start with a letter and cannot end with a period (.), hyphen (-), or underscore (_).
      • The snapshot name contains 1 to 127 characters.

    4. Optional: In Description, enter the description for the snapshot that you want to create.
    5. Set the time when the snapshot expires.

      NOTE:
      • If the time is not set as Never Expire, the snapshot expire time can be set as greater than the storage device current time.
      • When the snapshot reaches the expire time you set, the system will automatically delete this snapshot.

  4. Click OK.

    The Success dialog box is displayed.

  5. Click OK to finish creating directory snapshot.

Creating a Periodic Directory Snapshot Policy

The storage system allows you to create a periodic directory snapshot policy to automatically create snapshots at multiple points in time. If data under the source directory is attacked by a virus or damaged, you can use a periodic snapshot created before the fault to recover the lost data.

Prerequisites

One or more directories have been created in the storage system.

Procedure

  1. Log in to DeviceManager.
  2. Choose Data Protection > Snapshot > Timing Snapshot Policy.
  3. Create a periodic snapshot policy.
    1. Click Create.

      The Create Snapshot Schedule dialog box is displayed.

    2. In Name, enter a name for the periodic snapshot policy that you want to create.

      NOTE:
      • The periodic snapshot policy name can contain only letters, digits, underscores (_), periods (.), and hyphens (-).
      • The periodic snapshot policy name must start with a letter and cannot end with a period (.), hyphen (-), or underscore (_).
      • The periodic snapshot policy name contains 1 to 95 characters.

    3. In Directory, select a directory for which you want to create the periodic snapshot policy.
    4. In Schedule, click Add Schedule. Select the periodic snapshot policy based on site requirements.

      NOTE:
      • The periodic policy can be configured as every day, every week or every month.
      • If a snapshot directory contains a large number of files whose contents are frequently modified, it is recommended that you configure a periodic policy by month and set the snapshot expiration time to one month.


    5. Click Add.

      You can add a maximum of six periodic policies for a directory.

    6. Set the time when the snapshot expires.

      NOTE:
      • If the time is not set to Never Expire, the time must be longer than 0 years and shorter than 50 years.
      • When the snapshot created based on the periodic snapshot policy undergoes the expire time you set, the system will automatically delete the snapshot.

  4. Click OK.

    The Execution Result dialog box is displayed.

  5. Click Close.
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Updated: 2019-06-27

Document ID: EDOC1000122519

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