Help Center/ Object Storage Service/ .NET SDK Developer Guide (Ally Region)/ Bucket Management/ Setting or Obtaining a Bucket Quota
Updated on 2026-01-16 GMT+08:00
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Setting or Obtaining a Bucket Quota

Setting a Bucket Quota

You can call ObsClient.SetBucketQuota to set the bucket quota. Sample code is as follows:

// Initialize configuration parameters.
ObsConfig config = new ObsConfig();
config.Endpoint = "https://your-endpoint";
// Hard-coded or plaintext AK/SK are risky. For security purposes, encrypt your AK/SK and store them in the configuration file or environment variables. In this example, the AK/SK are stored in environment variables for identity authentication. Before running this example, configure environment variables AccessKeyID and SecretAccessKey.
// Obtain an AK/SK pair on the management console.
string accessKey= Environment.GetEnvironmentVariable("AccessKeyID", EnvironmentVariableTarget.Machine);
string secretKey= Environment.GetEnvironmentVariable("SecretAccessKey", EnvironmentVariableTarget.Machine);
// Create an instance of ObsClient.
ObsClient client = new ObsClient(accessKey, secretKey, config);
// Set the bucket quota.
try
{
    SetBucketQuotaRequest request = new SetBucketQuotaRequest
    {
        BucketName = "bucketname",
        StorageQuota = 0L,
    };
    SetBucketQuotaResponse response = client.SetBucketQuota(request);
    Console.WriteLine("Set bucket quota response: {0}", response.StatusCode);
}
catch (ObsException ex)
{
    Console.WriteLine("ErrorCode: {0}", ex.ErrorCode);
    Console.WriteLine("ErrorMessage: {0}", ex.ErrorMessage);
}

A bucket quota must be a non-negative integer expressed in bytes. The maximum value is 263 - 1.

Obtaining the Bucket Quota

You can call ObsClient.GetBucketQuota to obtain the bucket quota. Sample code is as follows:

// Initialize configuration parameters.
ObsConfig config = new ObsConfig();
config.Endpoint = "https://your-endpoint";
// Hard-coded or plaintext AK/SK are risky. For security purposes, encrypt your AK/SK and store them in the configuration file or environment variables. In this example, the AK/SK are stored in environment variables for identity authentication. Before running this example, configure environment variables AccessKeyID and SecretAccessKey.
// Obtain an AK/SK pair on the management console.
string accessKey= Environment.GetEnvironmentVariable("AccessKeyID", EnvironmentVariableTarget.Machine);
string secretKey= Environment.GetEnvironmentVariable("SecretAccessKey", EnvironmentVariableTarget.Machine);
// Create an instance of ObsClient.
ObsClient client = new ObsClient(accessKey, secretKey, config);
// Obtain the bucket quota.
try
{
    GetBucketQuotaRequest request = new GetBucketQuotaRequest
    {
        BucketName = "bucketname",
    };
    GetBucketQuotaResponse response = client.GetBucketQuota(request);
    Console.WriteLine("Get bucket quota response: {0}", response.StatusCode);
    Console.WriteLine("StorageQuota: {0}", response.StorageQuota);
}
catch (ObsException ex)
{
    Console.WriteLine("ErrorCode: {0}", ex.ErrorCode);
    Console.WriteLine("ErrorMessage: {0}", ex.ErrorMessage);
}
Parent topic: Bucket Management