DB Instance Status

**Table 1** Status and description
Status	Description
Available	A DB instance is running properly.
Abnormal	A DB instance is faulty.
Creating	A DB instance is being created.
Creation failed	A DB instance fails to be created.
Restarting	A DB instance is being restarted because of a customer request or a modification that requires restarting it for the modification to take effect.
Switchover in progress	The primary and secondary nodes of a replica set instance are being switched.
Adding node	shards or mongos are being added to a DDS cluster instance.
Deleting node	The node that failed to be added is being deleted.
Scaling up	The storage space of instance nodes is being expanded.
Changing instance class	The CPU or memory of a DB instance is being changed.
Backing up	A backup file is being created.
Checking restoration	The backup of the current DB instance is being restored to a new DB instance.
Changing private IP address	The private IP address of a node is being changed.
Changing port	The DB instance port is being changed.
Changing a security group	The security group is being changed.

**Table 2** Status and description
Status	Description
In-Sync	A database parameter change has taken effect.
Pending restart	A database parameter is waiting for the DB instance to be restarted before its modification takes effect.