Backup

Scenarios

A backup is a complete copy of an SFS Turbo file system at a specific time and it records all configuration data and service data at that time.

If a file system is faulty or encounters a logical error (for example, accidental deletion, hacker attacks, and virus infection), you can use data backups to restore data quickly.

Creating a File System Backup

Ensure that the target file system is available. Or, the backup task cannot start. This procedure describes how to manually create a file system backup.

When a previous-generation SFS Turbo file system (Standard, Standard - Enhanced, Performance, or Performance - Enhanced) is being backed up, mounting the file system may fail. This is because the connection used for mounting may experience an I/O delay about 30 seconds. You are advised to perform backup during off-peak hours.

1. Log in to the CBR console.
2. In the navigation pane on the left, choose SFS Turbo Backups.
3. Buy a backup vault by following the instructions in Purchasing an SFS Turbo Backup Vault. Then, create a backup by following the instructions in Creating an SFS Turbo Backup.
4. Wait for CBR to automatically create a file system backup.

   You can view the backup creation status on the Backups tab page. When the Status of the backup changes to Available, the backup has been created.

5. Create a new file system from the backup if the file system becomes faulty or encounters an error occurred. For details, see Using a Backup to Create a File System.

Using a Backup to Create a File System

In case of a virus attack, accidental deletion, or software or hardware fault, you can use an SFS Turbo file system backup to create a new SFS Turbo file system. Data on the new file system is the same as that in the backup.

You can only create pay-per-use SFS Turbo file systems from backups. To create yearly/monthly ones from backups, you need to first create the pay-per-use file systems and then change their billing modes to yearly/monthly.

1. Log in to the CBR console.
   1. Log in to the management console.
   2. Click in the upper left corner and select your desired region and project.
   3. Choose Storage > Cloud Backup and Recovery > SFS Turbo Backups.

2. Click the Backups tab and locate the desired backup.
3. Click Create File System in the Operation column of the backup. The button is available only when the backup status is Available.
   

   For how to create backups, see Purchasing an SFS Turbo Backup Vault and Creating an SFS Turbo Backup.

4. Set the file system parameters.
   

   • For detailed parameter descriptions, see table "Parameter description" under Creating an SFS Turbo File System.
   • You can change the storage class of the file system within a certain range. For example, you can change a file system from Standard to Performance, but cannot from Standard to Standard - Enhanced.
   • The billing mode of the new file system can only be pay-per-use.

5. Click Next.
6. Confirm the file system information and click Submit.
7. Pay the fees as prompted and click OK.
8. Go back to the file system list and check whether the file system is successfully created.

   You will see the file system status change as follows: Creating, Available, Restoring, Available. You may not notice the Restoring status because Instant Restore is supported and the restoration speed is very fast. After the file system status has changed from Creating to Available, the file system is successfully created. After the status has changed from Restoring to Available, backup data has been successfully restored to the created file system.