# Querying Information About Used Space in a Bucket

#### Functions

This operation queries the number of bucket objects and the space occupied by the objects. The size of the object space is a positive integer, measured by bytes.

The OBS bucket storage statistics is measured in the background, and the storage data is not updated in real time. Therefore, you are not advised to perform real-time verification on the storage information.

#### Request Syntax

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    GET /?storageinfo HTTP/1.1
    Host: bucketname.obs.region.example.com
    Date: date
    Authorization: authorization

#### Request Parameters

This request contains no parameters.

#### Request Headers

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

#### Request Elements

This request contains no elements.

#### Response Syntax

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    HTTP/1.1 status_code
    Date: date
    Content-Type: type
    Content-Length: length
    <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
    <GetBucketStorageInfoResult xmlns="http://obs.region.example.com/doc/2015-06-30/">
    <Size>size</Size>
    <ObjectNumber>number</ObjectNumber>
    </GetBucketStorageInfoResult>

#### Response Headers

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

#### Response Elements

This response contains elements of information about the used storage capacity of a bucket. Table 1 describes the elements.

Table 1 Response elements
Element | Description
--- | ---
GetBucketStorageInfoResult | Request result that saves bucket storage information, including the stored data size and the number of objects Type: XML
Size | Size of stored data Type: integer
ObjectNumber | Number of objects returned Type: integer

#### Error Responses

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

#### Sample Request

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    GET /?storageinfo HTTP/1.1
    User-Agent: curl/7.29.0
    Host: examplebucket.obs.region.example.com
    Accept: */*
    Date: WED, 01 Jul 2015 03:31:18 GMT
    Authorization: OBS H4IPJX0TQTHTHEBQQCEC:bLcdeJGYWw/eEEjMhPZx2MK5R9U=

#### Sample Response

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    HTTP/1.1 200 OK
    Server: OBS
    x-obs-request-id: BF260000016435DD2958BFDCDB86B55E
    x-obs-id-2: 32AAAQAAEAABAAAQAAEAABAAAQAAEAABCSitZctaPYVnat49fVMd1O+OWIP1yrg3
    Content-Type: application/xml
    WED, 01 Jul 2015 03:31:18 GMT
    Content-Length: 206

    <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
    <GetBucketStorageInfoResult xmlns="http://obs.example.com/doc/2015-06-30/">
      <Size>25490</Size>
      <ObjectNumber>24</ObjectNumber>
    </GetBucketStorageInfoResult>

Parent topic: Advanced Bucket Settings