--- title: "changeCloudMongoDbShardCount" slug: "cli-vmongodb-changecloudmongodbshardcount" updated: 2026-09-17T10:08:42Z published: 2026-09-17T10:08:42Z canonical: "cli.ncloud-docs.com/cli-vmongodb-changecloudmongodbshardcount" --- > ## 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. # changeCloudMongoDbShardCount Available in VPC Change the number of shards for a Cloud DB for MongoDB instance. ## Syntax The `changeCloudMongoDbShardCount` syntax is as follows: ``` ./ncloud vmongodb changeCloudMongoDbShardCount \ --cloudMongoDbInstanceNo \ --shardCount \ [--regionCode ] \ [--output ] ``` ## Options This section describes the options available when running `changeCloudMongoDbShardCount`. ### Required options The following options are required for `changeCloudMongoDbShardCount`. | Options | Type | Required | Description | | --- | --- | --- | --- | | `--cloudMongoDbInstanceNo` | String | Required | Instance number of Cloud DB for MongoDB - See [getCloudMongoDbInstanceList](/docs/en/cli-vmongodb-getcloudmongodbinstancelist). | | `--shardCount` | String | Required | Number of shards of the Cloud DB for MongoDB instance to change to - `3`-`5` - Shards can only be added, not removed. | ### Common options For information about the options common to all `vmongodb` subcommands, see [Cloud DB for MongoDB (VPC) options](/docs/en/cli-vmongodb#%EC%98%B5%EC%85%98). ## Examples If the request to change the number of shards is successful, the configuration information for the Cloud DB for MongoDB instance and the details for each server instance are returned. ### Command The command example is as follows: ``` ./ncloud vmongodb changeCloudMongoDbShardCount \ --cloudMongoDbInstanceNo 34567890 \ --shardCount 3 \ --regionCode KR \ --output json ``` ### Output The output example is as follows: ``` { "changeCloudMongoDbShardCountResponse": { "totalRows": 1, "cloudMongoDbInstanceList": [ { "cloudMongoDbInstanceNo": "34567890", "cloudMongoDbServiceName": "mongodb-01", "cloudMongoDbInstanceStatusName": "running", "cloudMongoDbInstanceStatus": { "code": "CREAT", "codeName": "CLOUD DATABASE (VPC) Created status" }, "cloudMongoDbInstanceOperation": { "code": "NULL", "codeName": "CLOUD DATABASE(VPC) Null OP" }, "generationCode": "G2", "clusterType": { "code": "SHARDED_CLUSTER", "codeName": "Sharding Cluster Type - Cloud DB for MongoDB (VPC)" }, "engineVersion": "MongoDB 7.0.28 Community Edition", "licence": { "code": "OEM", "codeName": "License code - CLOUD DATABASE (VPC)" }, "backupFileRetentionPeriod": 1, "backupTime": "02:00", "backupParallel": 1, "cloudMongoDbImageProductCode": "SW.VMGDB.OS.LNX64.ROCKY.0810.MNGDB.CE.B050", "accessControlGroupNoList": [ "67890123" ], "shardCount": 3, "compress": { "code": "SNPP", "codeName": "Snappy" }, "memberPort": 17017, "mongosPort": 17017, "configPort": 17017, "createDate": "2026-06-10T10:03:36+0900", "cloudMongoDbServerInstanceList": [ { "cloudMongoDbServerInstanceNo": "34567899", "cloudMongoDbServerName": "mg-mongodb-c-98ef", "clusterRole": { "code": "CONFIG_SERVER", "codeName": "Config Server Cluster Role - Cloud DB for MongoDB" }, "cloudMongoDbServerInstanceStatusName": "running", "cloudMongoDbServerInstanceStatus": { "code": "RUN", "codeName": "CLOUD DATABASE (VPC) server Running status" }, "cloudMongoDbServerInstanceOperation": { "code": "NOOP", "codeName": "CLOUD DATABASE (VPC) server null OP" }, "cloudMongoDbServerRole": { "code": "C", "codeName": "Config Server" }, "regionCode": "KR", "vpcNo": "12345678", "subnetNo": "23456789", "createDate": "2026-06-10T10:03:36+0900", "uptime": "2026-06-10T10:10:22+0900", "zoneCode": "KR-1", "privateDomain": "mg0009.vpc.mg.naverncp.com", "memorySize": 4294967296, "cpuCount": 2, "dataStorageSize": 10737418240, "usedDataStorageSize": 3425341440, "cloudMongoDbProductCode": "SVR.VMGDB.CFGSV.HICPU.C002.M004.NET.SSD.B050.G002", "replicaSetName": "csmongodb-01", "dataStorageType": { "code": "SSD", "codeName": "SSD" } }, { "cloudMongoDbServerInstanceNo": "34567900", "cloudMongoDbServerName": "mg-mongodb-c-98eg", "clusterRole": { "code": "CONFIG_SERVER", "codeName": "Config Server Cluster Role - Cloud DB for MongoDB" }, "cloudMongoDbServerInstanceStatusName": "running", "cloudMongoDbServerInstanceStatus": { "code": "RUN", "codeName": "CLOUD DATABASE (VPC) server Running status" }, "cloudMongoDbServerInstanceOperation": { "code": "NOOP", "codeName": "CLOUD DATABASE (VPC) server null OP" }, "cloudMongoDbServerRole": { "code": "C", "codeName": "Config Server" }, "regionCode": "KR", "vpcNo": "12345678", "subnetNo": "23456789", "createDate": "2026-06-10T10:03:36+0900", "uptime": "2026-06-10T10:10:01+0900", "zoneCode": "KR-1", "privateDomain": "mg0010.vpc.mg.naverncp.com", "memorySize": 4294967296, "cpuCount": 2, "dataStorageSize": 10737418240, "usedDataStorageSize": 3425206270, "cloudMongoDbProductCode": "SVR.VMGDB.CFGSV.HICPU.C002.M004.NET.SSD.B050.G002", "replicaSetName": "csmongodb-01", "dataStorageType": { "code": "SSD", "codeName": "SSD" } }, { "cloudMongoDbServerInstanceNo": "34567901", "cloudMongoDbServerName": "mg-mongodb-c-98eh", "clusterRole": { "code": "CONFIG_SERVER", "codeName": "Config Server Cluster Role - Cloud DB for MongoDB" }, "cloudMongoDbServerInstanceStatusName": "running", "cloudMongoDbServerInstanceStatus": { "code": "RUN", "codeName": "CLOUD DATABASE (VPC) server Running status" }, "cloudMongoDbServerInstanceOperation": { "code": "NOOP", "codeName": "CLOUD DATABASE (VPC) server null OP" }, "cloudMongoDbServerRole": { "code": "C", "codeName": "Config Server" }, "regionCode": "KR", "vpcNo": "12345678", "subnetNo": "23456789", "createDate": "2026-06-10T10:03:36+0900", "uptime": "2026-06-10T10:09:01+0900", "zoneCode": "KR-1", "privateDomain": "mg0011.vpc.mg.naverncp.com", "memorySize": 4294967296, "cpuCount": 2, "dataStorageSize": 10737418240, "usedDataStorageSize": 3425206270, "cloudMongoDbProductCode": "SVR.VMGDB.CFGSV.HICPU.C002.M004.NET.SSD.B050.G002", "replicaSetName": "csmongodb-01", "dataStorageType": { "code": "SSD", "codeName": "SSD" } }, { "cloudMongoDbServerInstanceNo": "34567905", "cloudMongoDbServerName": "mg-mongodb-c-98ey", "clusterRole": { "code": "CONFIG_SERVER", "codeName": "Config Server Cluster Role - Cloud DB for MongoDB" }, "cloudMongoDbServerInstanceStatusName": "running", "cloudMongoDbServerInstanceStatus": { "code": "RUN", "codeName": "CLOUD DATABASE (VPC) server Running status" }, "cloudMongoDbServerInstanceOperation": { "code": "NOOP", "codeName": "CLOUD DATABASE (VPC) server null OP" }, "cloudMongoDbServerRole": { "code": "C", "codeName": "Config Server" }, "regionCode": "KR", "vpcNo": "12345678", "subnetNo": "23456789", "createDate": "2026-06-10T11:10:04+0900", "uptime": "2026-06-10T11:15:39+0900", "zoneCode": "KR-1", "privateDomain": "mg0015.vpc.mg.naverncp.com", "memorySize": 4294967296, "cpuCount": 2, "dataStorageSize": 10737418240, "usedDataStorageSize": 3421806590, "cloudMongoDbProductCode": "SVR.VMGDB.CFGSV.HICPU.C002.M004.NET.SSD.B050.G002", "replicaSetName": "csmongodb-01", "dataStorageType": { "code": "SSD", "codeName": "SSD" } }, { "cloudMongoDbServerInstanceNo": "34567891", "cloudMongoDbServerName": "mg-mongodb-mb001-98e7", "clusterRole": { "code": "SHARD", "codeName": "Shard Cluster Role - Cloud DB for MongoDB" }, "cloudMongoDbServerInstanceStatusName": "running", "cloudMongoDbServerInstanceStatus": { "code": "RUN", "codeName": "CLOUD DATABASE (VPC) server Running status" }, "cloudMongoDbServerInstanceOperation": { "code": "NOOP", "codeName": "CLOUD DATABASE (VPC) server null OP" }, "cloudMongoDbServerRole": { "code": "MB", "codeName": "Member" }, "regionCode": "KR", "vpcNo": "12345678", "subnetNo": "23456789", "createDate": "2026-06-10T10:03:36+0900", "uptime": "2026-06-10T10:10:07+0900", "zoneCode": "KR-1", "privateDomain": "mg0001.vpc.mg.naverncp.com", "memorySize": 4294967296, "cpuCount": 2, "dataStorageSize": 10737418240, "usedDataStorageSize": 3425910780, "cloudMongoDbProductCode": "SVR.VMGDB.MNGOD.HICPU.C002.M004.NET.SSD.B050.G002", "replicaSetName": "mongodb-01001", "dataStorageType": { "code": "SSD", "codeName": "SSD" } }, { "cloudMongoDbServerInstanceNo": "34567892", "cloudMongoDbServerName": "mg-mongodb-mb001-98e8", "clusterRole": { "code": "SHARD", "codeName": "Shard Cluster Role - Cloud DB for MongoDB" }, "cloudMongoDbServerInstanceStatusName": "running", "cloudMongoDbServerInstanceStatus": { "code": "RUN", "codeName": "CLOUD DATABASE (VPC) server Running status" }, "cloudMongoDbServerInstanceOperation": { "code": "NOOP", "codeName": "CLOUD DATABASE (VPC) server null OP" }, "cloudMongoDbServerRole": { "code": "MB", "codeName": "Member" }, "regionCode": "KR", "vpcNo": "12345678", "subnetNo": "23456789", "createDate": "2026-06-10T10:03:36+0900", "uptime": "2026-06-10T10:09:56+0900", "zoneCode": "KR-1", "privateDomain": "mg0002.vpc.mg.naverncp.com", "memorySize": 4294967296, "cpuCount": 2, "dataStorageSize": 10737418240, "usedDataStorageSize": 3425382400, "cloudMongoDbProductCode": "SVR.VMGDB.MNGOD.HICPU.C002.M004.NET.SSD.B050.G002", "replicaSetName": "mongodb-01001", "dataStorageType": { "code": "SSD", "codeName": "SSD" } }, { "cloudMongoDbServerInstanceNo": "34567902", "cloudMongoDbServerName": "mg-mongodb-mb001-98ek", "clusterRole": { "code": "SHARD", "codeName": "Shard Cluster Role - Cloud DB for MongoDB" }, "cloudMongoDbServerInstanceStatusName": "running", "cloudMongoDbServerInstanceStatus": { "code": "RUN", "codeName": "CLOUD DATABASE (VPC) server Running status" }, "cloudMongoDbServerInstanceOperation": { "code": "NOOP", "codeName": "CLOUD DATABASE (VPC) server null OP" }, "cloudMongoDbServerRole": { "code": "MB", "codeName": "Member" }, "regionCode": "KR", "vpcNo": "12345678", "subnetNo": "23456789", "createDate": "2026-06-10T10:44:51+0900", "uptime": "2026-06-10T10:50:22+0900", "zoneCode": "KR-1", "privateDomain": "mg0012.vpc.mg.naverncp.com", "memorySize": 4294967296, "cpuCount": 2, "dataStorageSize": 10737418240, "usedDataStorageSize": 3423395840, "cloudMongoDbProductCode": "SVR.VMGDB.MNGOD.HICPU.C002.M004.NET.SSD.B050.G002", "replicaSetName": "mongodb-01001", "dataStorageType": { "code": "SSD", "codeName": "SSD" } }, { "cloudMongoDbServerInstanceNo": "34567893", "cloudMongoDbServerName": "mg-mongodb-mb002-98e9", "clusterRole": { "code": "SHARD", "codeName": "Shard Cluster Role - Cloud DB for MongoDB" }, "cloudMongoDbServerInstanceStatusName": "running", "cloudMongoDbServerInstanceStatus": { "code": "RUN", "codeName": "CLOUD DATABASE (VPC) server Running status" }, "cloudMongoDbServerInstanceOperation": { "code": "NOOP", "codeName": "CLOUD DATABASE (VPC) server null OP" }, "cloudMongoDbServerRole": { "code": "MB", "codeName": "Member" }, "regionCode": "KR", "vpcNo": "12345678", "subnetNo": "23456789", "createDate": "2026-06-10T10:03:36+0900", "uptime": "2026-06-10T10:09:51+0900", "zoneCode": "KR-1", "privateDomain": "mg0003.vpc.mg.naverncp.com", "memorySize": 4294967296, "cpuCount": 2, "dataStorageSize": 10737418240, "usedDataStorageSize": 3424268290, "cloudMongoDbProductCode": "SVR.VMGDB.MNGOD.HICPU.C002.M004.NET.SSD.B050.G002", "replicaSetName": "mongodb-01002", "dataStorageType": { "code": "SSD", "codeName": "SSD" } }, { "cloudMongoDbServerInstanceNo": "34567894", "cloudMongoDbServerName": "mg-mongodb-mb002-98ea", "clusterRole": { "code": "SHARD", "codeName": "Shard Cluster Role - Cloud DB for MongoDB" }, "cloudMongoDbServerInstanceStatusName": "running", "cloudMongoDbServerInstanceStatus": { "code": "RUN", "codeName": "CLOUD DATABASE (VPC) server Running status" }, "cloudMongoDbServerInstanceOperation": { "code": "NOOP", "codeName": "CLOUD DATABASE (VPC) server null OP" }, "cloudMongoDbServerRole": { "code": "MB", "codeName": "Member" }, "regionCode": "KR", "vpcNo": "12345678", "subnetNo": "23456789", "createDate": "2026-06-10T10:03:36+0900", "uptime": "2026-06-10T10:09:23+0900", "zoneCode": "KR-1", "privateDomain": "mg0004.vpc.mg.naverncp.com", "memorySize": 4294967296, "cpuCount": 2, "dataStorageSize": 10737418240, "usedDataStorageSize": 3424571390, "cloudMongoDbProductCode": "SVR.VMGDB.MNGOD.HICPU.C002.M004.NET.SSD.B050.G002", "replicaSetName": "mongodb-01002", "dataStorageType": { "code": "SSD", "codeName": "SSD" } }, { "cloudMongoDbServerInstanceNo": "34567903", "cloudMongoDbServerName": "mg-mongodb-mb002-98el", "clusterRole": { "code": "SHARD", "codeName": "Shard Cluster Role - Cloud DB for MongoDB" }, "cloudMongoDbServerInstanceStatusName": "running", "cloudMongoDbServerInstanceStatus": { "code": "RUN", "codeName": "CLOUD DATABASE (VPC) server Running status" }, "cloudMongoDbServerInstanceOperation": { "code": "NOOP", "codeName": "CLOUD DATABASE (VPC) server null OP" }, "cloudMongoDbServerRole": { "code": "MB", "codeName": "Member" }, "regionCode": "KR", "vpcNo": "12345678", "subnetNo": "23456789", "createDate": "2026-06-10T10:44:51+0900", "uptime": "2026-06-10T10:50:03+0900", "zoneCode": "KR-1", "privateDomain": "mg0013.vpc.mg.naverncp.com", "memorySize": 4294967296, "cpuCount": 2, "dataStorageSize": 10737418240, "usedDataStorageSize": 3422187520, "cloudMongoDbProductCode": "SVR.VMGDB.MNGOD.HICPU.C002.M004.NET.SSD.B050.G002", "replicaSetName": "mongodb-01002", "dataStorageType": { "code": "SSD", "codeName": "SSD" } }, { "cloudMongoDbServerName": "mg-mongodb-mb003-98f5", "clusterRole": { "code": "SHARD", "codeName": "Shard Cluster Role - Cloud DB for MongoDB" }, "cloudMongoDbServerInstanceStatusName": "creating", "cloudMongoDbServerInstanceStatus": { "code": "PEND", "codeName": "CLOUD DATABASE (VPC) server Pending status" }, "cloudMongoDbServerInstanceOperation": { "code": "CREAT", "codeName": "CLOUD DATABASE (VPC) server Create OP" }, "cloudMongoDbServerRole": { "code": "MB", "codeName": "Member" }, "regionCode": "KR", "vpcNo": "12345678", "subnetNo": "23456789", "createDate": "2026-06-10T11:25:54+0900", "uptime": "2026-06-10T11:15:39+0900", "zoneCode": "KR-1", "memorySize": 4294967296, "cpuCount": 2, "dataStorageSize": 10737418240, "cloudMongoDbProductCode": "SVR.VMGDB.MNGOD.HICPU.C002.M004.NET.SSD.B050.G002", "replicaSetName": "mongodb-01003", "dataStorageType": { "code": "SSD", "codeName": "SSD" } }, { "cloudMongoDbServerName": "mg-mongodb-mb003-98f6", "clusterRole": { "code": "SHARD", "codeName": "Shard Cluster Role - Cloud DB for MongoDB" }, "cloudMongoDbServerInstanceStatusName": "creating", "cloudMongoDbServerInstanceStatus": { "code": "PEND", "codeName": "CLOUD DATABASE (VPC) server Pending status" }, "cloudMongoDbServerInstanceOperation": { "code": "CREAT", "codeName": "CLOUD DATABASE (VPC) server Create OP" }, "cloudMongoDbServerRole": { "code": "MB", "codeName": "Member" }, "regionCode": "KR", "vpcNo": "12345678", "subnetNo": "23456789", "createDate": "2026-06-10T11:25:54+0900", "uptime": "2026-06-10T11:15:39+0900", "zoneCode": "KR-1", "memorySize": 4294967296, "cpuCount": 2, "dataStorageSize": 10737418240, "cloudMongoDbProductCode": "SVR.VMGDB.MNGOD.HICPU.C002.M004.NET.SSD.B050.G002", "replicaSetName": "mongodb-01003", "dataStorageType": { "code": "SSD", "codeName": "SSD" } }, { "cloudMongoDbServerName": "mg-mongodb-mb003-98f7", "clusterRole": { "code": "SHARD", "codeName": "Shard Cluster Role - Cloud DB for MongoDB" }, "cloudMongoDbServerInstanceStatusName": "creating", "cloudMongoDbServerInstanceStatus": { "code": "PEND", "codeName": "CLOUD DATABASE (VPC) server Pending status" }, "cloudMongoDbServerInstanceOperation": { "code": "CREAT", "codeName": "CLOUD DATABASE (VPC) server Create OP" }, "cloudMongoDbServerRole": { "code": "MB", "codeName": "Member" }, "regionCode": "KR", "vpcNo": "12345678", "subnetNo": "23456789", "createDate": "2026-06-10T11:25:54+0900", "uptime": "2026-06-10T11:15:39+0900", "zoneCode": "KR-1", "memorySize": 4294967296, "cpuCount": 2, "dataStorageSize": 10737418240, "cloudMongoDbProductCode": "SVR.VMGDB.MNGOD.HICPU.C002.M004.NET.SSD.B050.G002", "replicaSetName": "mongodb-01003", "dataStorageType": { "code": "SSD", "codeName": "SSD" } }, { "cloudMongoDbServerInstanceNo": "34567897", "cloudMongoDbServerName": "mg-mongodb-rt-98ed", "clusterRole": { "code": "MONGOS", "codeName": "Mongos Cluster Role - Cloud DB for MongoDB" }, "cloudMongoDbServerInstanceStatusName": "running", "cloudMongoDbServerInstanceStatus": { "code": "RUN", "codeName": "CLOUD DATABASE (VPC) server Running status" }, "cloudMongoDbServerInstanceOperation": { "code": "NOOP", "codeName": "CLOUD DATABASE (VPC) server null OP" }, "cloudMongoDbServerRole": { "code": "RT", "codeName": "Mongos" }, "regionCode": "KR", "vpcNo": "12345678", "subnetNo": "23456789", "createDate": "2026-06-10T10:03:36+0900", "uptime": "2026-06-10T10:09:33+0900", "zoneCode": "KR-1", "privateDomain": "mg0007.vpc.mg.naverncp.com", "memorySize": 4294967296, "cpuCount": 2, "dataStorageSize": 10737418240, "usedDataStorageSize": 3106938880, "cloudMongoDbProductCode": "SVR.VMGDB.MNGOS.HICPU.C002.M004.NET.SSD.B050.G002", "dataStorageType": { "code": "SSD", "codeName": "SSD" } }, { "cloudMongoDbServerInstanceNo": "34567898", "cloudMongoDbServerName": "mg-mongodb-rt-98ee", "clusterRole": { "code": "MONGOS", "codeName": "Mongos Cluster Role - Cloud DB for MongoDB" }, "cloudMongoDbServerInstanceStatusName": "running", "cloudMongoDbServerInstanceStatus": { "code": "RUN", "codeName": "CLOUD DATABASE (VPC) server Running status" }, "cloudMongoDbServerInstanceOperation": { "code": "NOOP", "codeName": "CLOUD DATABASE (VPC) server null OP" }, "cloudMongoDbServerRole": { "code": "RT", "codeName": "Mongos" }, "regionCode": "KR", "vpcNo": "12345678", "subnetNo": "23456789", "createDate": "2026-06-10T10:03:36+0900", "uptime": "2026-06-10T10:10:21+0900", "zoneCode": "KR-1", "privateDomain": "mg0008.vpc.mg.naverncp.com", "memorySize": 4294967296, "cpuCount": 2, "dataStorageSize": 10737418240, "usedDataStorageSize": 3106037760, "cloudMongoDbProductCode": "SVR.VMGDB.MNGOS.HICPU.C002.M004.NET.SSD.B050.G002", "dataStorageType": { "code": "SSD", "codeName": "SSD" } }, { "cloudMongoDbServerInstanceNo": "34567904", "cloudMongoDbServerName": "mg-mongodb-rt-98ew", "clusterRole": { "code": "MONGOS", "codeName": "Mongos Cluster Role - Cloud DB for MongoDB" }, "cloudMongoDbServerInstanceStatusName": "running", "cloudMongoDbServerInstanceStatus": { "code": "RUN", "codeName": "CLOUD DATABASE (VPC) server Running status" }, "cloudMongoDbServerInstanceOperation": { "code": "NOOP", "codeName": "CLOUD DATABASE (VPC) server null OP" }, "cloudMongoDbServerRole": { "code": "RT", "codeName": "Mongos" }, "regionCode": "KR", "vpcNo": "12345678", "subnetNo": "23456789", "createDate": "2026-06-10T10:58:57+0900", "uptime": "2026-06-10T11:04:10+0900", "zoneCode": "KR-1", "privateDomain": "mg0014.vpc.mg.naverncp.com", "memorySize": 4294967296, "cpuCount": 2, "dataStorageSize": 10737418240, "usedDataStorageSize": 3105062910, "cloudMongoDbProductCode": "SVR.VMGDB.MNGOS.HICPU.C002.M004.NET.SSD.B050.G002", "dataStorageType": { "code": "SSD", "codeName": "SSD" } } ] } ], "requestId": "e6f7a8b9-c0d1-2345-fabc-345678901234", "returnCode": "0", "returnMessage": "success" } } ```