Bucket Storage Classes

You can set the storage class for a bucket when creating it. Or the bucket defaults to be in the Standard storage class. The x-obs-storage-class header in a bucket creation request specifies the default storage class for a bucket. The storage class of the objects in a bucket defaults to be that of the bucket. OBS provides three bucket storage classes. Therefore, the possible values of the x-obs-storage-class header are STANDARD (OBS Standard), WARM (OBS Infrequent Access), and COLD (OBS Archive). If this header is not contained, the storage class of the created bucket is Standard.