Help Center/ Migration Center/ User Guide/ Migration Clusters/ Migration Cluster Resources and Settings
Updated on 2024-07-27 GMT+08:00
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Migration Cluster Resources and Settings

This section describes the resources and their settings of a migration cluster.

Migration Cluster Resources

Resource

Configurable During Cluster Creation

Mandatory

Quantity

Naming Rule

Description

ECSs

Yes

Yes
  • Master node: 1
  • Migration nodes: created based on the settings specified during cluster creation
  • List nodes: created based on the settings specified during cluster creation

oms_cluster_ecs_Node ID

These ECSs have the migration plug-in installed and are used to schedule and perform migration tasks.

NAT gateway

Yes

No

1

oms_cluster_nat_Cluster ID

This NAT gateway enables list and migration nodes to communicate with migration sources over the public network, so that source data can be migrated.

LTS

Yes

No

1

Host group name: oms_lts_host_group_Cluster ID

Used to save and search for logs of the migration cluster.

If Log Collection is not enabled during cluster creation, these LTS resources will not be created.

Host group name: oms_lts_host_group_label_Cluster ID

Log group name: oms_lts_log_group_Cluster ID

Log stream name: oms_lts_stream_group_Cluster ID

Log access name: oms_lts_access_config_Cluster ID

VPC endpoint service

No

Yes

1

Region name.oms-cluster.Service ID

This VPC endpoint service allows OMS to communicate with the master node in the migration cluster to manage migration tasks.

For details, see VPC Endpoint Service Configuration.

Security groups

No

Yes

2

oms_cluster_sg_master_Cluster ID

This is the security group of the master node in the migration cluster. It enables the communication between OMS and the migration cluster.

For details about the security group settings, see Security Group Settings for the Master Node.

oms_cluster_sg_agent_Cluster ID

This is the security group of the list and migration nodes in the migration cluster. It enables communication between nodes in the migration cluster.

For details about the security group settings, see Security Group Settings for List and Migration Nodes.

VPC Endpoint Service Configuration

Item

Configuration

Description

VPC

The VPC where the migration cluster works is selected.

-

Service Type

Interface

-

Connection Approval

This option is enabled.

VPC endpoints need to be approved before they can connect to this endpoint service.

Port Mapping

Ports 22 and 9002 are mapped.

Used for plugin installation, task delivery, and task management.

Backend Resource Type

ECS

The ECS used as the master node.

Connection Management

The VPC endpoint of OMS is allowed to access this VPC endpoint service.

Allows OMS to communicate with the master node in the migration cluster.

Permission Management

OMS is added to the whitelist.

Allows access from the VPC endpoint of OMS.

Security Group Settings for the Master Node

Direction

Priority

Action

Type

Protocol & Port

Source or Destination

Description

Inbound

1

Allow

IPv4

All

Security group of the mater node

Allows VMs in the security group to communicate with each other.

Inbound

1

Allow

IPv6

All

Security group of the mater node

Allows VMs in the security group to communicate with each other.

Inbound

1

Allow

IPv4

TCP: 22

198.19.128.0/17

Allows OMS to communicate with the master node to install the migration plugin.

Inbound

1

Allow

IPv4

TCP: 9002

198.19.128.0/17

Allows OMS to communicate with the master node to deliver and manage tasks.

Inbound

1

Allow

IPv6

All

The security group of the list and migration nodes

Allows the list and migration nodes to communicate with the master node.

Inbound

1

Allow

IPv4

All

The security group of the list and migration nodes

Allows the list and migration nodes to communicate with the master node.

Outbound

1

Allow

IPv6

All

::/128

Allows outbound traffic to communicate with the migration source.

Outbound

1

Allow

IPv4

All

0.0.0.0/0

Allows outbound traffic to communicate with the migration source.

Outbound

1

Allow

IPv6

All

The security group of the list and migration nodes

Allows the list and migration nodes to communicate with the master node.

Outbound

1

Allow

IPv4

All

The security group of the list and migration nodes

Allows the list and migration nodes to communicate with the master node.

Security Group Settings for List and Migration Nodes

Direction

Priority

Action

Type

Protocol & Port

Source or Destination

Description

Inbound

1

Allow

IPv6

All

Security group of the mater node

Allows the list and migration nodes to communicate with the master node.

Inbound

1

Allow

IPv4

All

Security group of the mater node

Allows the list and migration nodes to communicate with the master node.

Inbound

1

Allow

IPv4

All

The security group of the list and migration nodes

Allows VMs in the security group to communicate with each other.

Inbound

1

Allow

IPv6

All

The security group of the list and migration nodes

Allows VMs in the security group to communicate with each other.

Outbound

1

Allow

IPv4

All

0.0.0.0/0

Allows outbound traffic to communicate with the migration source.

Outbound

1

Allow

IPv6

All

::/128

Allows outbound traffic to communicate with the migration source.

Outbound

1

Allow

IPv6

All

Security group of the mater node

Allows the list and migration nodes to communicate with the master node.

Outbound

1

Allow

IPv4

All

Security group of the mater node

Allows the list and migration nodes to communicate with the master node.
Parent topic: Migration Clusters