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Advanced O&M Command Reference

OceanStor 5000, 5000F, 6000, and 6000F V5 Series V500R007

This document is applicable to OceanStor 5110 V5, 5110F V5, 5300 V5, 5500 V5, 5600 V5, 5800 V5, 6800 V5, 5300F V5, 5500F V5, 5600F V5, 5800F V5, and 6800F V5. Based on the CLI, this document describes how to use various commands classified by functionsand how to set the CLI and manage the storage system through these commands.
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change controllers_expansion cancel

change controllers_expansion cancel

Function

The change controllers_expansion cancel command is used to roll back the configuration of a cluster when controllers to be expanded fail to be added to the cluster.

Format

change controllers_expansion cancel controller_total=?

Parameters

Parameter

Description

Value

controller_total=?

Total number of controllers in the cluster.

The value is an integer between 2 and 6.

Views

Developer view, Engineer view

Usage Guidelines

  • After the controller fails to be expanded, before executing the rollback command, disconnect the network link between the original cluster of the expanded controllers and the cluster of controllers to be expanded. Details are as follows:

    Devices in IP Scale-Out network:

    • On the devices in the switch network and direct network, disconnect the network link of the devices to be expanded and devices in live network, and run the rollback command on a controller of the original cluster.

Example

To reset the number of controllers to 2 after cluster expansion failed, run the following command:

engineer:/>change controllers_expansion cancel controller_total=2 
DANGER: You are going to execute the operation of cancelling bay.This operation will cause the service discontinuous and the data lost. 
Suggestion: Before you perform this operation, ensure that you have input the correct parameter and no service is running on the controllers that you want to cancel. 
Have you read danger alert message carefully?(y/n)y 

Are you sure you really want to perform the operation?(y/n)y 
Command executed successfully.

System Response

None

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Updated: 2019-07-11

Document ID: EDOC1000181619

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