EBS / Client / list_snapshot_blocks



Returns information about the blocks in an Amazon Elastic Block Store snapshot.


You should always retry requests that receive server ( 5xx) error responses, and ThrottlingException and RequestThrottledException client error responses. For more information see Error retries in the Amazon Elastic Compute Cloud User Guide.

See also: AWS API Documentation

Request Syntax

response = client.list_snapshot_blocks(
  • SnapshotId (string) –


    The ID of the snapshot from which to get block indexes and block tokens.

  • NextToken (string) –

    The token to request the next page of results.

    If you specify NextToken, then StartingBlockIndex is ignored.

  • MaxResults (integer) –

    The maximum number of blocks to be returned by the request.

    Even if additional blocks can be retrieved from the snapshot, the request can return less blocks than MaxResults or an empty array of blocks.

    To retrieve the next set of blocks from the snapshot, make another request with the returned NextToken value. The value of NextToken is null when there are no more blocks to return.

  • StartingBlockIndex (integer) –

    The block index from which the list should start. The list in the response will start from this block index or the next valid block index in the snapshot.

    If you specify NextToken, then StartingBlockIndex is ignored.

Return type:



Response Syntax

    'Blocks': [
            'BlockIndex': 123,
            'BlockToken': 'string'
    'ExpiryTime': datetime(2015, 1, 1),
    'VolumeSize': 123,
    'BlockSize': 123,
    'NextToken': 'string'

Response Structure

  • (dict) –

    • Blocks (list) –

      An array of objects containing information about the blocks.

      • (dict) –

        A block of data in an Amazon Elastic Block Store snapshot.

        • BlockIndex (integer) –

          The block index.

        • BlockToken (string) –

          The block token for the block index.

    • ExpiryTime (datetime) –

      The time when the BlockToken expires.

    • VolumeSize (integer) –

      The size of the volume in GB.

    • BlockSize (integer) –

      The size of the blocks in the snapshot, in bytes.

    • NextToken (string) –

      The token to use to retrieve the next page of results. This value is null when there are no more results to return.


  • EBS.Client.exceptions.AccessDeniedException

  • EBS.Client.exceptions.ValidationException

  • EBS.Client.exceptions.ResourceNotFoundException

  • EBS.Client.exceptions.RequestThrottledException

  • EBS.Client.exceptions.ServiceQuotaExceededException

  • EBS.Client.exceptions.InternalServerException