# Cluster Disk Expansion

UKafka cluster supports online disk expansion, which is friendly for customer business growth scenarios.

> 1. During the cluster disk expansion, each node in the cluster is operated one by one, the disk is expanded online, and the service will not be interrupted during the expansion.
> 2. Cluster disks do not currently support shrinkage.
> 3. The size of the disk is the amount of data disk of a single node.

- In the cluster list or details interface, click on [Edit Node] to enter the edit node information page

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The edit node page displays the current node information, edit node, and payment information.

- Execute cluster disk expansion

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In the edit node module, select [Modify Disk Size] for the modification type, choose the disk size as needed, and click [OK] to complete the cluster disk expansion.

## Current Node Information Module

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The current node information module includes the cluster name, resource ID, number of nodes, and disk information.

## Edit Node Module

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The Edit Node module includes modification type and node model.

## Payment Information

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The payment information module includes payment method, expiration date, and the amount of difference to be made up.