File Storage NAS:Back up a General-purpose NAS file system

Billing

The first time you use the file backup feature for a NAS file system, you receive a 30-day free trial. After the trial period ends, you can choose to renew your subscription or suspend the backup plan. For detailed billing information, see Cloud Backup billing.

Usage notes

• The first time you create a backup plan or associate a backup plan with a backup policy, Cloud Backup automatically creates a service-linked role named AliyunServiceRoleForHbrNasBackup. This role is used to obtain permissions to access related resources. In the dialog box that appears, grant the role as prompted.

• During a NAS backup or restore job, the maximum length of a file name is 248 bytes. If a file name exceeds this limit, the file cannot be backed up or restored. The job is then marked as partially completed.

• The socket files or hard links cannot be restored.

Back up files

1. Log on to the NAS console.

2. In the left-side navigation pane, choose Data Service > File Backup (Cloud Backup Service)

3. In the top navigation bar, select a region.

4. On the File Backup page, click the Backup Plans tab, and then click Create Backup Plan.

5. In the Create Backup Plan panel, configure the following parameters, and then click OK.

   1. Configure basic parameters.

      Important

      • About the free trial plan

        The free trial plan is enabled by default to let you quickly try the feature. However, the free trial has limitations. For example, you cannot edit the backup path or backup cycle, and each free backup plan uses a separate backup vault. After you switch to a paid plan, the backup vault cannot be changed. If you want to back up all data to the same backup vault in the future, click Switch to Paid Plan to unlock all features.

      • About the disaster recovery capability of the backup vault

        If the backup vault in the current region is a locally redundant backup vault, a message is displayed to inform you. To protect your data from single-datacenter disasters, switch to a paid plan to enable cross-region backup replication. Alternatively, you can select a region that supports zone-redundant backup vaults for your backups.

      Parameter	Description
      File System	Select the file system that you want to back up.
      Pay After Trial Ends	Select whether the plan automatically converts to a paid subscription after the free trial ends.
      Plan Name	Enter a name for the backup plan. If you leave this parameter empty, the system assigns a random name.
      Start Time	Select the start time for the first backup job. You can specify the time down to the second.

   2. Optional: If you want to configure a fine-grained backup plan, click Switch to Paid Plan in the free trial description of the file system to enable advanced settings. Then, configure the advanced parameters as described in the following table.

      Parameter	Description
      Source Paths	Enter a path, for example, /nas/folder.
      Backup Rule	Configure the rule to back up files. Only files that match the rule are backed up. Include All Files: Backs up all files. Include Files or Exclude Files: Manually enter a list of files. Files are backed up based on the specified rule.
      Backup Policy	Select a backup policy from the drop-down list. Cloud Backup automatically backs up data sources based on the backup policy that you configure. A backup policy includes settings such as the backup vault encryption method, backup interval, retention period, cross-region replication policy, automatic data archiving, and virus detection for backup points. This helps you flexibly manage data sources. If the default backup policy does not meet your requirements, click Create Policy or Edit Policy to manage backup policies. For more information about the parameters in a backup policy, see Policy center.

      Note

      • You can view the status of executed backup jobs and the amount of backed-up data on the Backup Jobs tab.

      • If the status of a backup job is not updated for a long period, click Refresh in the upper-right corner of the page and check the status again.

Restore files

Follow these steps to restore a single NAS file system in the same region.

1. Log on to the NAS console.

2. In the left-side navigation pane, choose Data Service > File Backup (Cloud Backup Service).

3. In the top navigation bar, select a region.

4. On the File Backup page, click the Data Restoration tab, and then click Create Restore Job.

5. In the Create Restore Job panel, configure the following settings.

   1. Select a backup and click Next.

      Parameter	Description
      Source Vault	Select the backup vault that stores the backup data of the source NAS file system.
      Source File System	Select a backed-up NAS file system as the source for restoration.
      Please select which backup to restore	From the list of backups, select the backup that you want to restore.

   2. On the Select Restore Items tab, select Restore Items and click Next.

      Parameter

      Description

      Restore Items

      Select the items to restore. Include All Files: Restores all files in the selected source NAS instance. Include Files: Select the folders or files to restore, or manually enter a list of specific paths in the Enter Paths box. Exclude Files: Select this option to specify files and folders to exclude from the restore job. Any items not on the exclusion list will be restored. Select the items or enter their paths manually in the Enter Paths box. Enter one path per line in the file list. Each line must start with the last folder of the source path. For example, if the source path is /test/data and you want to restore file.txt and abc in the data folder, enter the paths in the following format: /data/file.txt /data/abc

   3. On the Restore Destination tab, select a File System in the region and click Next.

   4. On the Destination Path tab, configure the restore path and click Create.

      Parameter	Description
      Restore Path Type	Select the type of restore path. Specify Path: Specify a new path to restore the files to. Origin Path: Restore files to the path from which they were backed up.
      Destination Path	This parameter is required only if you set Restore Path Type to Specify Path. It specifies the destination path for the restored file system. For example, restore the file system to /nas/abc.
      File Conflict Policy	Skip the file. Overwrite the existing file. Compare the update times and keep the newer version.
      Virus Detection During Restoration	If you enable this option, Cloud Backup scans all files for viruses before restoring them. For more information, see the console or Backup point virus detection.
      When Recovery Items Contain Detected Viruses	Do not restore the virus-infected files (find secure versions on the Virus Detection page.) I am aware of the risks and still want to restore all the selected items

   After the restore job is created, view its progress in the Status column on the Restore Jobs tab.

More operations

FAQ

• How is the free trial period for NAS file backup calculated?

• Does File Storage NAS support inotify?

• More FAQs about backing up and restoring files

References

• Back up an Extreme NAS file system

• Recycle bin

• Snapshots