Definition of management nodes

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A management node is the management system of a FusionInsight cluster. It provides a unified access entry and manages the nodes and services deployed in the cluster in a unified manner.

Other related questions:
Definition of data nodes
A data node executes the instructions sent by the management node, reports the task status, stores data, and provides other public functions.

Definition of control nodes?
A control node controls and monitors how data nodes store and receive data, and send process status, and provides other public functions.

Definition of FusionInsight Manager
FusionInsight Manager is an enterprise-class big data O&M platform. It provides highly reliable, secure, fault-tolerant, and easy-to-use cluster management for FusionInsight HD. It supports installation and deployment, monitoring, alarm management, user management, rights management, auditing, service management, health checks, fault location, upgrades, and patching of large-scale clusters.

OceanStor ReplicationDirector Management Node Fault
1. On a new physical server or VM, install the same version of OceanStor ReplicationDirector. For details about the installation, refer to OceanStor ReplicationDirector V100R003C10 Product Documentation. After finishing the installation, configure the OceanStor ReplicationDirector network information and confirm that the node name, IP address, and other configurations are the same as those of the original OceanStor ReplicationDirector. 2. Obtain the latest backup management data. Backup file save path: o Automatic backup: Go to the backup file save path /root/CloudComputing/DRBackup/OceanStor ReplicationDirector management IP address/YYYY-MM-DD/Auto/ConfigData.zip o Manual backup: Go to your local system to obtain the ConfigData.zip file. 3. Import the configuration data into the newly installed OceanStor ReplicationDirector.

Identifying management servers in OceanStor 9000 V100R001C01
Nodes 1 to 3 (numbered from the bottom up) in the cabinet are used as the management network elements in OceanStor 9000 V100R001C01 by default.

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