OBS charges in the pay per use mode (based on the hourly rate of storage capacity) by default. You can also purchase a monthly/yearly subscription package to obtain more preferences. You can select a charging mode based on your actual needs.

To meet various customer requirements on the storage performance and cost, OBS provides three types of storage classes: Standard, Infrequent Access, and Archive.

  • OBS Standard features low access latency and high throughput. Therefore, it applies to scenarios requiring frequent access and the storage of massive hot files (multiple times of access within a month) or small files (< 1 MB). For example, Big Data, mobile applications, hot videos, and social images.
  • OBS Infrequent Access is applicable to storing semi-frequently accessed (less than 12 times a year) data requiring quick response. The application scenarios include file synchronization or sharing, and enterprise-level backup. It provides the same durability, access latency, and throughput as OBS Standard but at a lower price. However, OBS Infrequent Access has lower availability than OBS Standard.
  • OBS Archive is applicable to archiving rarely-accessed (once a year) data. The application scenarios include data archiving and long-term data retention for backup. OBS Archive is secure, durable, and inexpensive, which can replace tape libraries. However, it can take up to hours to restore data from OBS Archive.

Refer to Pricing to calculate the price based on your requirements. The basic charging factors of OBS include the storage capacity, traffic, and quantity of requests. In addition, OBS Infrequent Access and OBS Archive charge the traffic fee for each retrieval of data.