Functions

This operation sets or updates the default storage class of a bucket.

To perform this operation, you must have the PutBucketStoragePolicy permission. By default, only the bucket owner can perform this operation. The bucket owner can grant the permission to other users by configuring the bucket policy or user policy.

After the default storage class has been set for a bucket, if the storage class of an object is not specified during uploading, copying, or initialization of multi-part upload, the object storage class is the same as the default storage class of the bucket.

The default storage class of a bucket is Standard.

Request Syntax

PUT /?storageClass HTTP/1.1 
Host: bucketname.obs.region.example.com
Date: date 
Content-Type: type 
Content-Length: length 
Authorization: authorization 

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

Request Parameters

This request contains no parameters.

Request Headers

This request uses common headers. For details, see Table 3.

Request Elements

This request needs an additional element to specify the default bucket storage class. For details, see Table 1.

**Table 1** Additional request elements
Element	Description	Mandatory
StorageClass	Specifies the default storage class for a bucket. Type: string Value options: STANDARD \| WARM \| COLD There are three storage classes: STANDARD (Standard storage class), WARM (Warm storage class), and COLD (Cold storage class) Therefore, the following values can be configured: STANDARD, WARM, and COLD.	Yes

Response Syntax

HTTP/1.1 status_code
Date: date 

Response Headers

The response to the request uses common headers. For details, see Table 1.

Response Elements

This response involves no elements.

Error Responses

No special error responses are returned. For details about error responses, see Table 2.

Sample Request

PUT /?storageClass HTTP/1.1
User-Agent: curl/7.29.0
Host: examplebucket.obs.region.example.com
Accept: */*
Date: WED, 01 Jul 2015 03:18:19 GMT
Authorization: OBS H4IPJX0TQTHTHEBQQCEC:Tf6XbndPx/yNgfAVQ6KIXr7tMj4=
Content-Length: 87

<StorageClass xmlns="http://obs.example.com/doc/2015-06-30/">STANDARD</StorageClass>

Sample Response

HTTP/1.1 200 OK
Server: OBS
x-obs-request-id: BF2600000164368E704B571F328A8797
x-obs-id-2: 32AAAQAAEAABSAAgAAEAABAAAQAAEAABCSIsw3tPtUn6damTI5acQmQAcEfmTwl3
Date: WED, 01 Jul 2015 03:18:19 GMT
Content-Length: 0

Configuring Storage Class for a Bucket