Managing Manual Backups of a GeminiDB DynamoDB-Compatible Instance

You can create manual backups for GeminiDB DynamoDB-Compatible instances in the Available status to ensure data reliability. If a database or table is deleted maliciously or accidentally, backups can help restore your data.

Billing

After you purchase an instance, GeminiDB DynamoDB-Compatible API provides additional backup storage equal in size to the purchased storage, free of charge. For example, if you purchase an instance with 100 GB of storage, you will get an additional 100 GB of backup storage at no extra cost. If backup data stays within 100 GB, it is stored in OBS free of charge. If it exceeds 100 GB, you will be billed for the additional space at standard OBS rates. For details, see OBS Pricing Details.

Usage Notes

Manual backups are full backups.
Backup files are saved as packages in OBS buckets. Uploading backup files and reading service data both consume bandwidth, so the upload bandwidth of OBS is limited. The upload bandwidth of a single node ranges from 20 MB/s to 70 MB/s.
For better performance, you need to specify appropriate nodes for an instance and take into account the bandwidth for uploading backups.
CPU usage may increase by 5% to 15% due to the additional resource consumption during backup upload.
While backups are uploaded, the memory usage does not increase significantly. Generally, the memory usage is about 300 MB. How much memory usage actually increases depends on the instance data volume. The increased memory mainly caches data during backup upload and service read. After the backup upload is complete, the memory recovers.
Manual backups are billed.

Managing Manual Backups

Log in to the Huawei Cloud console.
Create a manual backup.

Method 1

On the Instances page, locate the instance that you want to create a backup for and choose More > Create Backup in the Operation column.
Method 2
1. On the Instances page, click the target instance name to go to the Basic Information page.
2. Choose Backups & Restorations in the navigation pane on the left, and click Create Backup.
Method 3

In the navigation pane, choose Backups. On the displayed page, click Create Backup.

In the displayed dialog box, enter a backup name and description and click OK.

Figure 1 Creating a backup
Click to enlarge

**Table 1** Parameter description
Parameter	Description
DB Instance Name	Must be the name of the DB instance to be backed up and cannot be modified.
Backup Name	Must be 4 to 64 characters in length and start with a letter. It is case-insensitive and contains only letters, digits, hyphens (-), and underscores (_).
Description	Can contain a maximum of 256 characters. Line breaks and special characters >!<"&'= are not allowed.

View the backup status.
- When the backup is being created, query the backup status on the Backups or Backups & Restorations page. The backup status is Backing up.
- After the backup is created, the backup status is Completed.
You can create manual table-level backups by following Creating and Managing Table-level Backups.

If you no longer need a manual backup, delete it on the Backups or Backups & Restorations page.

Deleted backups are not displayed in the backup list.

Deleted backups cannot be restored.

Log in to the GeminiDB console.
Method 1:

On the Instances page, click the target instance name to go to the Basic Information page.

In the navigation pane, choose Backups & Restorations, locate the backup you want to delete, and click Delete in the Operation column.

Figure 2 Deleting a single backup

You can also select multiple backups and then click Batch Delete to delete them at once.

Figure 3 Deleting backups in batches

Method 2:

On the Backups page, locate the backup you want to delete and click Delete in the Operation column.

Figure 4 Deleting a single backup

You can also select multiple backups and then click Batch Delete to delete them at once.

Figure 5 Deleting backups in batches
In the displayed dialog box, confirm the backup details and click Yes.