You can determine whether a DB instance is healthy based on its status displayed on the management console.

**Table 1** DB instance statuses
Status	Description
Available	DB instance is available.
Abnormal	DB instance is faulty.
Creating	DB instance is being created.
Creation failed	DB instance creation fails.
Restarting	DB instance is being restarted.
Resetting password	Administrator password is being reset.
Adding node	Nodes are being added to a DB instance.
Deleting node	Nodes are being deleted from a DB instance.
Scaling up	The storage space of the DB instance is being expanded.
Changing instance class	The CPU or memory of a DB instance is being changed.
Backing up	Backup is being created.
Checking restoration	The backup of the current DB instance is being restored to a new DB instance.