---
title: "changeFabricClusterServerInstances"
slug: "cli-vserver-fabriccluster-changefabricclusterserverinstances"
updated: 2026-09-17T10:08:35Z
published: 2026-09-17T10:08:35Z
canonical: "cli.ncloud-docs.com/cli-vserver-fabriccluster-changefabricclusterserverinstances"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://cli.ncloud-docs.com/llms.txt
> Use this file to discover all available pages before exploring further.

# changeFabricClusterServerInstances

Available in VPC

Change the list of server instances included in a Fabric cluster. It may take several minutes to tens of minutes for the server list to update.

## Syntax

The `changeFabricClusterServerInstances` syntax is as follows:

```
./ncloud vserver changeFabricClusterServerInstances \
    --fabricClusterNo <fabric-cluster-no> \
    [--clusterModeServerInstanceNoList <cluster-mode-server-instance-no-list>] \
    [--regionCode <KR|SGN|JPN>] \
    [--output <json|xml>]
```

## Options

This section describes the options available when running `changeFabricClusterServerInstances`.

### Required options

The following options are required for `changeFabricClusterServerInstances`.

| Options | Type | Required | Description |
| --- | --- | --- | --- |
| `--fabricClusterNo` | String | Required | Fabric cluster number - See [getFabricClusterList](/docs/en/cli-vserver-fabriccluster-getfabricclusterlist). |

### Optional options

These are the optional options for `changeFabricClusterServerInstances`. Options that are not specified will use their default values.

| Options | Type | Required | Description |
| --- | --- | --- | --- |
| `--clusterModeServerInstanceNoList` | List | Optional | List of server instance numbers to configure in cluster mode - Only servers created in the Fabric cluster pool configured for the Fabric cluster can be set. - This overwrites the existing cluster mode settings with the list provided in the request. To retain the existing server, include its number in the request. - Requesting an empty list or omitting it will disable all existing cluster mode settings. - You can enter multiple items separated by spaces. (e.g., `--clusterModeServerInstanceNoList 123 124`) - See [getServerInstanceList](/docs/en/cli-vserver-server-getserverinstancelist). - Get existing cluster mode servers: Filter by `fabricClusterNo` and `fabricClusterMode=CLUSTER`. - Get single-mode servers that can be added: Filter by `fabricClusterPoolNo` and `fabricClusterMode=SINGLE`. |

### Common options

For information about the options common to all `vserver` subcommands, see [Server (VPC) options](/docs/en/cli-vserver#%EC%98%B5%EC%85%98).

## Examples

If the request to change the Fabric cluster server instance is successful, the latest information about the cluster is returned.

### Command

The command example is as follows:

```
./ncloud vserver changeFabricClusterServerInstances \
    --fabricClusterNo 13579246 \
    --clusterModeServerInstanceNoList 34567890 34567891 \
    --regionCode KR \
    --output json
```

### Output

The output example is as follows:

```
{
  "changeFabricClusterServerInstancesResponse": {
    "totalRows": 1,
    "fabricClusterList": [
      {
        "fabricClusterNo": "13579246",
        "fabricClusterName": "test-cluster-01",
        "fabricClusterStatus": {
          "code": "SETUP",
          "codeName": "Configuring"
        },
        "fabricClusterDescription": "Test fabric cluster",
        "regionCode": "KR",
        "zoneCode": "KR-1",
        "vpcNo": "12345678",
        "fabricClusterPoolNo": "24680135",
        "fabricClusterPoolName": "gpu-cluster-pool-01",
        "fabricClusterPoolCode": "gpu-cluster-pool-01",
        "createDate": "2026-05-15T10:02:05+0900",
        "fabricClusterServerInstanceList": []
      }
    ],
    "requestId": "f6a7b8c9-d0e1-2345-f012-456789012345",
    "returnCode": "0",
    "returnMessage": "success"
  }
}
```