Resource Planning

**Table 1** Resource planning
Category	Subcategory	Plan	Description
Source VPC	VPC name	vpc-DRSsrc	Specify a name that is easy to identify.
	Region	AP-Singapore	To achieve lower network latency, select the region nearest to you.
	AZ	AZ2	-
	Subnet	10.0.0.0/24	Select a subnet with sufficient network resources.
	Subnet name	subnet-drs01	Specify a name that is easy to identify.
RDS (source database)	RDS instance name	rds-mysql-src	Specify a name that is easy to identify.
	Region	AP-Singapore	To achieve lower network latency, 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	SSD	-
	AZ	AZ2	A single instance is used in this example. To improve service reliability, create a primary and standby instance and then locate them in two different AZs.
	Specifications	General-purpose 4 vCPUs \| 8 GB	-
Source VPN	Gateway name	vpngw-src	Specify a name that is easy to identify.
	Region	AP-Singapore	To achieve lower network latency, select the region nearest to you.
	Virtual Private Cloud (VPC)	vpc-DRSsrc	The value must be the same as the VPC of the source RDS DB instance.
	VPN connection name	vpn-src01	Specify a name that is easy to identify.
	Local Subnet	subnet-drs01	The value must be the same as the VPC subnet of the source RDS instance.
	Remote gateway	123.60.251.207	Specifies the peer VPN gateway. This parameter is set to the gateway address of the target VPN. After the target VPN is created, obtain the gateway information.
	Remote subnet	172.16.0.0/24	Specifies the peer VPN gateway. The value is the subnet of the destination VPN, which must be the same as the subnet of the VPC where the destination DDM instance resides.
Destination VPC	VPC name	vpc-DRStar	Specify a name that is easy to identify.
	Region	CN-Hong Kong	To achieve lower network latency, select the region nearest to you.
	AZ	AZ1	-
	Subnet	172.16.0.0/24	Select a subnet with sufficient network resources.
	Subnet name	subnet-drs02	Specify a name that is easy to identify.
DDM (destination database)	DDM instance name	ddm-drs-tar	Specify a name that is easy to identify.
	AZ	AZ1	You can select one or more AZs. You are advised to create the instance across different AZs to improve service reliability.
	Node specifications	General-enhanced 8 vCPUs \| 16 GB	-
	Nodes	1	A single node has high availability risks. In practice, you are advised to create 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	To achieve lower network latency, 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	SSD	-
	AZ	AZ1	A single instance is used in this example. To improve service reliability, create a primary and standby instance and then locate them in two different AZs.
	Specifications	General-purpose 4 vCPUs \| 8 GB	-
Destination VPN	Gateway name	vpngw-tar	Specify a name that is easy to identify.
	Region	CN-Hong Kong	To achieve lower network latency, select the region nearest to you.
	Virtual Private Cloud (VPC)	vpc-DRStar	The value must be the same as 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 must be the same as the VPC subnet of the destination DDM instance.
	Remote gateway	123.60.236.84	Specifies the 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	Specifies the peer VPN gateway. The value is the subnet of the source VPN, which must be the same as the subnet of the VPC where the source RDS for MySQL instance is located.
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 database is DDM.
	Network type	VPN	In this example, VPN is used.