Setting Backup Method for a Single Node Instance

Procedure

1. Log in to the management console.
2. Click in the upper left corner and select a region and a project.
3. Click in the upper left corner of the page and choose Databases > Document Database Service.
4. On the Instances page, click the single node instance name.
5. In the navigation pane on the left, choose Backups & Restorations.
6. On the Backups & Restorations page, click Set Backup Policy.
   Figure 1 Setting Backup Method for a single node instance
   

   Table 1 Parameter description

   Parameter	Description
   Retention Period (days)	Number of days that your automated backups can be retained. The retention period is from 1 to 732 days and the default value is 7. Extending the retention period improves data reliability. You can configure the retention period if needed. If you shorten the retention period, the new backup policy takes effect for existing backups. Any automated backups (including full and incremental backups) that have expired will be automatically deleted. Manual backups will not be automatically deleted but you can delete them manually.
   Time Zone	The default backup time zone is the UTC time.
   Time Window	The backup interval is one hour. You are advised to set the backup window to an off-peak period.
   Backup Cycle	If you set the retention period to 1 to 6 days, data is automatically backed up each day of the week and the backup cycle cannot be changed. If you set the retention period to 7 to 732 days, you must select at least one day of the week for the backup cycle.
   Backup Method	Physical: Data is copied from physical disks. Snapshot: The data status at a particular point in time is retained. Compared with physical backup, snapshot backup is faster. Logical: A tool is used to read data and logically export the data.

7. Set Backup Method to Snapshot and click OK.