Object Storage Tiers: Standard storage class, Vault tier storage class, Smart tier storage class, Cold tier storage class.
Object Storage Service Description: IBM Cloud Object storage is an S3-compatible solution available for IBM Cloud or on-premises.
General product family overview:
IBM Cloud Object Storage is a platform for storing unstructured data (sometimes called binary or "blob" data). It is commonly used for data archiving and backup, for web and mobile applications, and as scalable, persistent storage for analytics.