You can use this operation to create a default storage class for a bucket or change the default storage class of a bucket.

Only users granted the s3:PutBucketStoragePolicy permission can perform this operation. By default, only the bucket owner can perform this operation. The bucket owner can allow other users to perform this operation by granting them the permission or setting a bucket policy.

When a bucket has a default storage class, if users do not specify the object storage class when uploading or copying an object or initializing a multipart upload task, the object will use the default bucket storage class.

When users do not manually set a default storage class for a bucket, the bucket will have the Standard storage class by default.

Request Syntax

PUT /?storagePolicy HTTP/1.1
User-Agent: agent
Host: bucketname.obs.example.com
Date: date
Accept: */*
Date: date
Authorization: authorization
Content-Length: length

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<StoragePolicy xmlns="http://obs.example.com/doc/2015-06-30/">
  <DefaultStorageClass>STANDARD</DefaultStorageClass>
</StoragePolicy>

Request Parameters

This request involves no parameters.

Request Headers

This request uses common headers. For details about common request headers, see Common Request Headers.

Request Elements

This request uses elements to specify the default bucket storage class. Table 1 describes the elements.

**Table 1** Request elements
Element	Description	Remarks
DefaultStorageClass	Indicates the default bucket storage class. It is a character string and can be STANDARD (OBS Standard), STANDARD_IA (OBS Warm), or GLACIER (OBS Cold). Note that the three storage class values are case-sensitive.	Mandatory

Response Syntax

HTTP/1.1 status_code
Server: Server Name
x-amz-request-id: request id
x-reserved: amazon, aws and amazon web services are trademarks or registered trademarks of Amazon Technologies, Inc
x-amz-id-2: id
Date: date
Content-Length: 0

Response Headers

This response uses common headers. For details about common response headers, see Common Response Headers.

Response Elements

This response involves no elements.

Error Responses

No special error responses are returned. For details about error responses, see Table 1.

Sample Request

PUT / HTTP/1.1
User-Agent: Jakarta Commons-HttpClient/3.1
Host: bucketname.obs.example.com
Accept: */*
Date: Sun, 26 Sep 2017 08:24:46 GMT
Authorization: AWS 04RZT432N80TGDF2Y2G2:ZyEGq367GyGGyItzr5egJOjaqiM=
Content-Length: 240
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<StoragePolicy xmlns="http://obs.example.com/doc/2015-06-30/">
  <DefaultStorageClass>STANDARD</DefaultStorageClass>
</StoragePolicy>

Sample Response

HTTP/1.1 200 OK
Server: OBS
x-amz-request-id: 3CEF0000015D08E1CF94AE61EA0EA1BC
x-reserved: amazon, aws and amazon web services are trademarks or registered trademarks of Amazon Technologies, Inc
x-amz-id-2: 0Z9Og4sWbGljhJq/UYfv6oBCwQ3/ZidsCQYz4CYBU305KRQnMwJWNXk/3/vswTEx
Date: Sun, 26 Sep 2017 08:28:06 GMT
Content-Length: 0

PUT Bucket storage class