Resource and Cost Planning

**Table 1** Resource planning
Category	Subcategory	Plan	Remarks
Source VPC	VPC name	vpc-DRSsrc	Specify a name that is easy to identify.
	Region	AP-Singapore	For low network latency and quick resource access, select the region nearest to you.
	AZ	AZ2	-
	Subnet CIDR	10.0.0.0/24	Select a subnet with sufficient network resources.
	Subnet name	subnet-drs01	Specify a name that is easy to identify.
Source RDS instance	RDS instance name	rds-mysql-src	Specify a name that is easy to identify.
	Region	AP-Singapore	For low network latency and quick resource access, select the region nearest to you.
	DB engine version	MySQL 5.7	-
	Instance type	Single	A single instance is used in this example. To improve service reliability, select a primary/standby instance.
	Storage type	Cloud SSD	-
	AZ	AZ2	A single instance is used in this example. To improve service reliability, create a primary/standby RDS instance and then deploy them in different AZs.
	Instance class	General-purpose 4 vCPUs \| 8 GB	-
Source VPN	Gateway name	vpngw-src	Specify a name that is easy to identify.
	Region	AP-Singapore	For low network latency and quick resource access, select the region nearest to you.
	VPC	vpc-DRSsrc	The VPC must be the same as the VPC of the source RDS instance.
	VPN connection name	vpn-src01	Specify a name that is easy to identify.
	Local subnet	subnet-drs01	The local subnet is the VPC subnet of the source RDS instance.
	Remote gateway	123.60.251.207	Peer VPN gateway. The value is the gateway address of the destination VPN. After the destination VPN is created, the gateway address is obtained.
	Remote subnet	172.16.0.0/24	Subnet of the peer VPN. The value is the subnet of the destination VPN, which is the subnet of the VPC where the destination DDM instance is deployed.
Destination VPC	VPC name	vpc-DRStar	Specify a name that is easy to identify.
	Region	CN-Hong Kong	For low network latency and quick resource access, select the region nearest to you.
	AZ	AZ1	-
	Subnet CIDR	172.16.0.0/24	Select a subnet with sufficient network resources.
	Subnet name	subnet-drs02	Specify a name that is easy to identify.
Destination DDM instance	DDM instance name	ddm-drs-tar	Specify a name that is easy to identify.
	AZ	AZ1	You can select one or more AZs. Ensure that the destination DDM instance is deployed across different AZs to improve service reliability.
	Node class	General-enhanced 8 vCPUs \| 16 GB	-
	Nodes	1	A single node cannot provide high availability. Ensure that the destination DDM instance has at least two nodes.
RDS instance associated with the DDM instance	RDS instance name	rds-ddm01	Specify a name that is easy to identify.
	Region	CN-Hong Kong	For low network latency and quick resource access, select the region nearest to you.
	DB engine version	MySQL 5.7	-
	Instance type	Single	A single instance is used in this example. To improve service reliability, select a primary/standby RDS instance.
	Storage type	Cloud SSD	-
	AZ	AZ1	A single instance is used in this example. To improve service reliability, create a primary/standby RDS instance and then deploy them in different AZs.
	Instance class	General-purpose 4 vCPUs \| 8 GB	-
Destination VPN	Gateway name	vpngw-tar	Specify a name that is easy to identify.
	Region	CN-Hong Kong	For low network latency and quick resource access, select the region nearest to you.
	VPC	vpc-DRStar	The value is the VPC of the destination DDM instance.
	VPN connection name	vpn-tar01	Specify a name that is easy to identify.
	Local subnet	subnet-drs02	The value is the VPC subnet of the destination DDM instance.
	Remote gateway	123.60.236.84	Peer VPN gateway. In this example, this parameter is set to the gateway address of the source VPN. After the source VPN is created, the gateway address is obtained.
	Remote subnet	10.0.0.0/24	Subnet of the peer VPN. The value is the subnet of the source VPN, which is the subnet of the VPC where the source RDS for MySQL instance is deployed.
DRS migration task	Task name	DRS-MySQLToDDM	Specify a name that is easy to identify.
	Source DB engine	MySQL	In this example, the source is an RDS for MySQL instance on Huawei Cloud.
	Destination DB engine	DDM	In this example, the destination is a DDM instance.
	Network type	VPN network	In this example, VPNs are used.