Creating a CDM Cluster
Scenario
CDM provides isolated clusters to ensure secure and reliable data migration. Currently, a cluster supports only one server.
Prerequisites
If VPC peering connection is configured, the peer VPC subnet may overlap with the CDM management network. As a result, data sources in the peer VPC cannot be accessed. You are advised to use the public network for cross-VPC data migration, or contact the administrator to add specific routes to the VPC peering connection in the CDM background.
Procedure
- Log in to the CDM management console.
- Click Buy CDM Cluster. The page for a CDM cluster is displayed.
- Configure the cluster parameters. Table 1 describes the required parameters.
Table 1 Parameter description Parameter
Example Value
Description
Region
EU-Dublin
Region where the CDM cluster resides. Resources in different regions cannot communicate with each other.
AZ
AZ2
For details, see AZs.
Name
cdm-aff1
Custom CDM cluster name
NOTE:After a CDM cluster is created, its name cannot be changed.
Instance Type
cdm.large
Currently, the following flavors are available:
- cdm.large: 8 vCPUs and 16 GB of memory. The maximum and assured bandwidths are 3 Gbit/s and 0.8 Gbit/s. Up to 16 jobs can be executed concurrently.
- cdm.xlarge: 16 vCPUs and 32 GB of memory. The maximum and assured bandwidths are 10 Gbit/s and 4 Gbit/s. Up to 32 jobs can be executed concurrently. This flavor is suitable for migrating terabytes of data that requires a bandwidth of 10GE.
- cdm.4xlarge: 64 vCPUs and 128 GB of memory. The maximum and assured bandwidths are 40 Gbit/s and 36 Gbit/s. Up to 64 jobs can be executed concurrently.
VPC
vpc1
VPC, subnet, and security group where the CDM cluster belongs to, which are used to communicate with the desired data source. They can be selected based on the migration source and destination.
- If the CDM cluster and the data source to be connected belong to different VPCs or the data source is an on-premises one, the CDM cluster needs to be bound with an elastic IP address (EIP).
- If the data source is a cloud service, you are advised to configure the network of the CDM cluster to be the same as that of the cloud service and the CDM cluster does not need to be bound with an EIP.
- If the data source is a cloud service, and CDM and the cloud service are in the same VPC but in different subnets, configure security group rules to interconnect the CDM cluster with the cloud service.
For details, see the Virtual Private Cloud User Guide.
Subnet
subnet-1
Security Group
sg-1
Enterprise Project
default
On the management console, click Enterprise in the upper right corner to access the enterprise project management page to create an enterprise project.
Tags
cluster_owner:cdm
Tag parameters can be configured when Advanced Configuration is set to Custom.
If you want to use the same tag to identify multiple types of cloud resources, you can customize the tag key and tag value. Then, you can filter cloud resources with the same tag in the TMS tag system.
NOTE:- A cluster can have a maximum of 10 tags.
- A tag key and a tag value can contain a maximum of 36 and 43 characters, respectively.
Notification
No
After the function is enabled, configure a maximum of 20 mobile numbers or email addresses. You will be notified of job failures (only table/file migration jobs) and EIP exceptions by SMS message or email.
NOTE:The EIP exception notification takes effect only after the VPC policy agency of the corresponding region is created on the IAM management console. You can also choose
on the Cluster Management page to create an agency. - Check the current configuration and click Buy Now to go to the page for confirming the order.
You cannot modify the flavor of an existing cluster. If you require a higher flavor, create a cluster with your desired flavor.
- Click Submit. The system starts to create a CDM cluster. You can view the creation progress on the Cluster Management page.
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