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eSight V300R010C00 Maintenance Guide 07

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Causes of the HA System Switchover

Causes of the HA System Switchover

In the HA system, if a fault occurs on the active server, services will automatically switch to the standby server, which will then monitor and manage the network. This section describes the common switchover causes.

The following describes two switchover causes in the HA system.

Cause 1: Resource faults can trigger the HA system switchover.

Resource Name

Description

NMSServer

Used to monitor keyword processes of eSight. A fault in a key process can trigger the switchover in the HA system.

Database

Used to monitor the database process. A fault in the database process can trigger the switchover in the HA system.

RMFloatIP

Used by eSight to offer the listening service. A fault in floating IP addresses can trigger the switchover in the HA system.

Cause 2: The switchover will be triggered due to unexpected power-off of the active server, hardware breakdown (for example, faulty hardware due to disasters such as earthquakes, tsunamis, and floods), or system breakdown (for example, system startup failure due to OS faults). After the switchover is complete, the HA system enters the protection failure status.

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Updated: 2019-06-30

Document ID: EDOC1100044373

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