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

Billing

The first time you back up files in a NAS file system, you can create a free (30-day period) backup plan. When the trial period expires, you can renew or suspend the backup plan. For more information, see Billing methods and billable items.

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 to obtain the permissions to access related resources. In the dialog box that appears, assign the role as prompted. For more information, see Service-linked roles for Cloud Backup.

• In NAS backup and restoration, the maximum length of a file name is 248 bytes. If the length of a file name exceeds 248 bytes, the file fails to be backed up or restored and the backup or restore job is partially completed.

• When you restore NAS files, you cannot restore socket files or hard links.

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 click Create Backup Plan.

5. In the Create Backup Plan panel, configure the following parameters to create a backup plan, and then click OK.

   1. Configure basic settings.

      Parameter	Description
      File System	Select the NAS file system that you want to back up.
      Pay After Trial Ends	Specify whether to pay for the backup plan after the free trial ends.
      Plan Name	Enter a name for the backup plan. If you do not configure this parameter, a random name is specified.
      Start Time	Specify the time at which the backup plan starts. The time is accurate to seconds.

   2. Optional. To configure a fine-grained backup plan, click Switch to Paid Plan to enable advanced settings, and then configure the parameters. The following table describes the parameters.

      Parameter	Description
      Source Paths	Enter a file path, for example, /nas/folder.
      Backup Rule	Configure the rule based on which files are backed up. Only files that match the specified rule are backed up. Include All Files: All files are backed up. Include Files or Exclude Files: If you select Include Files, enter the paths to the files that you want to back up. If you select Exclude Files, enter the paths to the files that you do not want to back up.
      Backup Policy	Select a proper backup policy from the drop-down list. Cloud Backup automatically backs up data sources based on the backup policy that you configure. Backup policies help you flexibly manage data sources. A backup policy includes the following settings: backup vault encryption method, backup interval, retention period, cross-region replication policy, automatic archiving of backup data, and virus detection for backup points. If the default backup policy does not meet your requirements, you can click Manage Policy to go to the Policy Center page to create or modify a backup policy. For more information about the parameters in a backup policy, see Manage backup policies.

      Note

      • On the Backup Jobs tab, you can view the status of the backup jobs, the data size of the backup files, and other details.

      • If the status of the backup jobs is not updated for a long time, you can click the Refresh button in the upper-right corner of the page.

Restore files

To restore backup data from a backup vault to a NAS file system in the same region as the backup vault, perform the following steps:

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 Restore Jobs tab, and then click Create Restore Job.

5. In the Create Restore Job panel, perform the following steps.

   1. Select the backup that you want to restore, 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 NAS file system that has been backed up by using Cloud Backup.
      Backup	Select the backup that you want to restore.

   2. In the Select Restore Items step, configure the Restore Items parameter and click Next.

      Parameter

      Description

      Restore Items

      Select the files or directories that you want to restore. Valid values: Include All Files: Cloud Backup restores all backup files from the source NAS file system. Include Files: Select the files or folders that you want to restore. You can also click Enter Paths to specify the files that you want to restore. Exclude Files: Select the files or folders that you do not want to restore. You can also click Enter Paths to specify the files that you do not want to restore. Enter one path in each line and make sure that each path starts with the lowest-level directory in the source path. For example, to restore the file.txt file and the abc folder in the /test/data directory, enter the following paths: /data/file.txt /data/abc

   3. In the Restore Destination step, select a File System in the specified region and click Next.

   4. In the Destination Path step, specify the recovery path and click Create.

      Parameter	Description
      Restore Path Type	Select the type of the recovery path. Specify Path: Specify a new path and restore the file system to the path. Origin Path: Restore the file system to the original path.
      Destination Path	This parameter is required only if you set the Restore Path Type parameter to Specify Path. This parameter specifies the path to which the file system is restored. For example, you can restore the file system to /nas/abc.
      File Conflict Policy	Skip This File Overwrite The File Keep Latest File
      Virus Detection During Restoration	If you turn on this switch, Cloud Backup performs virus detection on all files to be restored before data restoration. The console provides the detailed information about this feature. For more information, see Backup point virus detection.
      When Recovery Items Contain Detected Viruses	Do not restore the virus-infected files (You can find secure versions on the Virus Detection tab.) I am aware of the risks and still want to restore all the selected items

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

Related operations

FAQ

• How is the free-trial period for backing up NAS files calculated?

• Does NAS support the inotify subsystem?

• FAQ about advanced management features

References

• Back up an Extreme NAS file system

• Recycle bin

• Manage snapshots