Help Center> Object Storage Service> User Guide (Kuala Lumpur Region)> OBS Console Operation Guide> Managing Objects> Restoring a Cold File
Updated on 2022-08-16 GMT+08:00
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Restoring a Cold File

You must restore a Cold object before you can operate it, including download, access using a URL, as well as ACL and metadata settings.

Limitations and Constraints

  • If a Cold object is in the Restoring state, you cannot suspend or delete the restore task.
  • You cannot re-restore an object that is in the Restoring state.
  • After an object is restored, an object copy in Standard storage class will be generated. This way, there is the object in Cold storage class and also its copy in Standard storage class in the bucket. The copy will be automatically deleted once the restore expires.

Procedure

  1. In the bucket list, click the bucket you want to operate. The Overview page of the bucket is displayed.
  2. In the navigation pane, click Objects.
  3. Select the file you want to restore, and click Restore on the right.

    You can select multiple files and click Restore above the file list to batch restore the files.

    Objects that are being restored cannot be added for batch restore.

  4. Configure the validity period and speed of the restore. The following table describes the parameters.

    Table 1 Parameters for restoring objects

    Parameter

    Description

    Validity Period

    How long the object will remain in the Restored state. It starts once the object is restored. The value is an integer ranging from 1 to 30 (days). The default value is 30.

    For example, if you set Validity Period to 20 when restoring an object, 20 days after the object is successfully restored, its status will change from Restored to Unrestored.

    Speed

    How fast an object will be restored.

    • Expedited: Cold objects can be restored within 1 to 5 minutes.
    • Standard: Cold objects can be restored within 3 to 5 hours.

  5. Click OK.

    The Restoration Status column in the object list displays the restore statuses of objects.

    You can click to manually refresh the restore status.

    The system checks the file restore status at UTC 00:00 everyday. The system starts counting down the expiration time from the time when the latest check is complete.

Related Operations

Within the validity period of a restored object, you can restore the object again. Then the validity period is extended because it will start from the time when the latest restore is complete.

If a restored object is restored again, its expiration time should be later than the time set for the previous restore.

Parent topic: Managing Objects